Basic Math question and answers for July 20, 2023
- Q (5) In a random sample of 21 ?people, the mean commute time towork was 31.5 minutes and the standard deviation was 7.3 minutes.Assume the population is normally distributed and use...
- Q Please answer this using RstudioFor the oyster data, calculate regression fits (simpleregression) for the 2D and 3D dataa.1) Give null and alternative hypothesesa.2) Fit the regression modela.3) Summarize the fit...
- Q NASA is conducting an experiment to find out the fraction ofpeople who black out at G forces greater than 6.Suppose a sample of 1026 people is drawn. Of these people,...
- Q Given the following data where city MPG is the responsevariable and weight is the explanatory variable, explain why aregression line would be appropriate to analyze the relationshipbetween these variables:ModelCity MPGWeightMazda...
- Q The null and alternate hypotheses are:H0 : ?d ? 0H1 : ?d > 0The following sample information shows the number of defectiveunits produced on the day shift and the afternoon...
- Q Given a standard normal variable, what is the probability Z isgreater than 1.25? Round to four decimals and use leadingzeros.
- Q The consumer food database contains five variables: Annual FoodSpending per Household, Annual Household Income, Non-MortgageHousehold Debt, Geographic Region of the U.S. of the Household, andHousehold Location. There are 200 entries...
- Q 1. Calculate the covariance between profits and marketcapitalization and what does the covariance indicate about therelationship between profits and market capitalization? (positiveor negative).2. Calculate the correlation coefficient between profits andmarket...
- Q A simple random sample of sizenequals=8181is obtained from a population withmu equals 73?=73andsigma equals 18?=18.?(a) Describe the sampling distribution ofx overbarx.?(b) What isUpper P left parenthesis x overbar greater than...
- Q Probability question please follow thecommenthow do we use general inclusion and exclusion theorem to derive4 to 5 events?for example 3 events are that AUB=A+B-(A intersect B), but howabout 4 and...
- Q 1. In order to evaluate a spectrophotometric method for thedetermination of titanium, the method was applied to alloy samplescontaining difference certified amounts of titanium. The results(%Ti) are shown below.Sample CertifiedValue Mean Standard Deviation1 0.496 0.482 0.02572 0.995 1.009 0.02483 1.493 1.505 0.02874 1.990 2.002 0.0212For...
- Q Consider the following data for a dependent variable yand two independent variables, x1 andx2.x1x2y301395461010825181135016179405955120176747170361211759131427716211Round your all answers to two decimal places. Enter negativevalues as negative numbers, if necessary.a. Develop an...
- Q Refer to the accompanying data set of mean? drive-throughservice times at dinner in seconds at two fast food restaurants.Construct a 95?% confidence interval estimate of the mean?drive-through service time for...
- Q Using the simple random sample of weights of women from a data?set, we obtain these sample? statistics:nequals=4040andx overbarxequals=147.53lb. Research from other sources suggests that the population ofweights of women has...
- Q Generate a simulated data set with 100 observations based on thefollowing model. Each data point is a vector Z= (X, Y) where Xdescribes the age of a machine New, FiveYearsOld,...
- Q Debate if “failing to reject the null” is the same as “acceptingthe null.” Support your position with examples of acceptance orrejection of the null.
- Q The average number of cavities that thirty-year-old Americanshave had in their lifetimes is 5. Do twenty-year-olds have morecavities? The data show the results of a survey of 13twenty-year-olds who were...
- Q Indicate whether each statement represents a conceptualdefinition, part of an operational definition, or a hypothesis.1. The organizational capacity of nonprofit organizationsconsists of their relevance, responsiveness, effectiveness, andresilience.2. To determine the...
- Q A group of high-school parents in Tucson, Arizona, inconjunction with faculty from the University of Arizona, claim thatyoung women in the Tucson high schools not only are called on lessfrequently,...
- Q A soft drink filling machine, when in perfect alignment, fillsthe bottles with 12 ounces of soft drink. A random sample of 36bottles is selected, and the contents are measured. The...
- Q describe Neamos test for matched samples
- Q An educational psychologist has developed a mediation techniqueto reduce anxiety. The psychologist selected a sample of highanxiety students that are asked to do the mediation at two therapysessions a week...
- Q Answer the within-subjects ANOVA questions using the data below.Use ? = 0.01.123453494742513944443936343930294642393736342644353027332831Make an interpretation based on the results.At least one week differs on the GRE verbal score.No week isdifferent on...
- Q 1. On your final exam for your assessment course, yourinstructor reports that there was a positive skew with regard todistribution of scores. Describe or draw what those scores mighthave looked...
- Q Module 3 Individual ProblemsM3_IND1. A furniture cabinet maker produces two types ofcabinets, Classic and Modern, that house and hide LCD TVs. Theresource requirements and profit for the two types of...
- Q The following are daily exchange rates with the Japanese Yenquoted in Yen/Dollar.DateYen/Dollars19-Apr-1399.2818-Apr-1398.2217-Apr-1397.7416-Apr-1397.8615-Apr-139812-Apr-1398.9811-Apr-1399.4210-Apr-1399.619-Apr-1399.028-Apr-1398.95-Apr-1396.864-Apr-1396.123-Apr-1392.962-Apr-1393.431-Apr-1393.329-Mar-1394.1628-Mar-1394.0227-Mar-1394.3826-Mar-1394.2225-Mar-1394.3422-Mar-1394.4821-Mar-1395.0620-Mar-1395.5119-Mar-1394.8518-Mar-1394.9215-Mar-1395.2614-Mar-1396.1613-Mar-139612-Mar-1395.9611-Mar-1396.128-Mar-13967-Mar-13956-Mar-1393.645-Mar-1393.394-Mar-1393.321-Mar-1393.38Feb. 28, 201392.36Feb. 27, 201391.88Feb. 26, 201391.38Feb. 25, 201393.35Feb. 22, 201393.35Feb. 21, 201392.96Feb. 20, 201393.53Feb. 19, 201393.54Feb. 15, 201393.64Feb....
- Q Why do managers examine benchmarks? How can benchmarks beapplied to some of the analytic techniques?
- Q The following table shows the frequency distribution for thenumber of personal computers sold during the past month in asample of 40 computer stores located on theisland.Computers soldNumber of stores4 <...
- Q Overproduction of uric acid in the body can be an indication ofcell breakdown. This may be an advance indication of illness suchas gout, leukemia, or lymphoma.† Over a period of...
- Q Chapter 15 Discussion Group Question Gender differences in dream content are well documented(see Winget & Kramer, 1979). Suppose a researcher studiesaggression content in the dreams of men and women. Each participantreports...
- Q does the "unbiased" aspect of unbiased estimatorindicate that it underestimates the population value with sametenency as it overestimates the population value, or not?
- Q An automotive manufacturer wants to know the proportion of newcar buyers who prefer foreign cars over domestic.Step 1 of 2:Suppose a sample of 1046 new car buyers is drawn. Of...
- Q 3) An academic advisor at a university was studying studentclass attendance and would like to know if class attendance dependson school. a) State the Hypothesis to show class attendance dependson...
- Q An important feature of digital cameras is battery? life, thenumber of shots that can be taken before the battery needs to berecharged. The accompanying data contains battery life informationfor 29...
- Q Sheila's doctor is concerned that she may suffer fromgestational diabetes (high blood glucose levels during pregnancy).There is variation both in the actual glucose level and in theblood test that measures...
- Q In 2018-2019 season, Adam had a free throw success percentage of64.2%. Assume that free throw shots are independent and that he had8 free throws in a game.Let X= number of...
- Q A biotechnology firm is planning its investment strategy forfuture products and research labs. A poll found that 11?% of arandom sample of 1047 adults approved of attempts to clone ahuman.Question:...
- Q Given the data below, a lower specification of 62.6, and anupper specification of 101.8, what is the long term processperformance (ppk)?Data66.0628482.5771678.6411192.7289376.1813771.4620176.2423974.8362269.8748677.9047982.3943979.1885684.3449277.3282980.5053683.3601797.3474584.5622687.9513165.6441270.7318374.2887989.0700778.5074577.5139789.0494673.7578791.3059887.1258989.2985581.39886.5296284.3324980.4832181.8708983.5496471.1946480.0200190.0011282.2925777.5512588.0763988.9546783.9254288.3350984.3672377.8967982.3898567.8141580.6826387.2576781.152182.1554672.5217167.5835386.1166375.595869.2990977.6988888.1071784.4376876.6351976.6707473.7848679.9866172.2534988.6844987.5008575.2097483.2624586.2499882.8046381.1629281.3850783.0176280.0325688.050479.6036972.7996176.6430478.3464176.2437780.9663682.4747877.0706384.5594978.4564186.0334580.529481.2373786.9449570.8099776.1414390.8643371.2754563.7876969.48347
- Q you wish to test the following claim ( H a ) at a significancelevel of ? = 0.10 .H o : ? = 68.9 H a : ? ? 68.9You...
- Q Consider a joint PMF for the results of a study that comparedthe number of micro-strokes a patient suffered in a year (F) and anindex (S) that characterizes the stress the...
- Q Ina poll of 555 human resource professionals, 40.0% said that bodypeircings and tattoos were big grooming red flags. Complete parts(a) through (d)a.) among the 554 human resource professionals who weresurveyed,...
- Q A mathematics achievement test is given to students prior toentering a certain college. A sample of 10 students was selectedand their progress in calculus observed:StudentAchievement Test Score, XFinal Calculus Grade,...
- Q A statistician calculates that 7% of Americans own a RollsRoyce. If the statistician is right, what is the probability thatthe proportion of Rolls Royce owners in a sample of 613...
- Q Why is it crucial to know the level of measurement (nominal,ordinal, metric) when conducting significance testing? What flaw isevident with SPSS in this regard?
- Q Scroll the bottom arrows to see the whole table. if I make itany smaller you will not be able to see the numbers clearly: Isthere a relationship between the relative-change*...
- Q 1. A researcher has obtained the number of hours worked per weekduring the semester for a sample of 10 students:21, 33, 26, 16, 32, 20, 29, 20, 19, 20Use the...
- Q Using traditional methods it takes 105.0 hours to receive abasic driving license. A new license training method using ComputerAided Instruction (CAI) has been proposed. A researcher used thetechnique on 290...
- Q Many years ago, Detroit had a six-month newspaper strike thatclosed down all its newspapers. During the strike, Detroit’ssuicide rate fell very sharply (that is, there were far fewersuicides), but returned...
- Q Why are measures of relative standing (e.g.. percentiles,percentile ranks, and standard scores) important?
- Q This data talks about a solution of a chemical after sitting fora certain amount of time and provides the time it was leftsitting.Concentration of a chemical solution (y)Time after solution...
- Q M/PF Research, Inc. lists the average monthly apartment rent insome of the most expensive apartment rental locations in the UnitedStates. According to their report, the average cost of renting anapartment...
- Q Finally, you decide to repeat this same procedure to examinesalaries among male accountants in your firm. You do notnecessarily expect salaries to be larger or smaller than theaverage. The same...
- Q The reading speed of second grade students in a large city isapproximately? normal, with a mean of 89 words per minute? (wpm)and a standard deviation of 10 wpm. A teacher...
- Q For the following exercises, use the graphs shown in Figure 13. All have the form f(x) = abx.Which graph has the largest value for a?
- Q The first cake has three layers with each one having a differenttop view: the bottom is a square, the middle is ahexagon, and the top is a circle.The height of...
- Q Assume that G is connected and let (G) = min{deg(v) ? Z ?0 | v ? V (G)}denote the lowest vertex degree that occurs in a graph G andlet ?(G) = min{|K|...
- Q Given ? ABC , construct equilateral triangles ? BCD , ? CAE ,and ? ABF outside of ? ABC . Prove that the circumcircles of ? BCD, ? CAE ,...
- Q The epicenter of an earthquake is the point on Earth's surfacedirectly above the earthquakes origin. A seismograph can be used todetermine the distance to the epicenter of an earthquake.Seismographs are...
- Q Differential Geometry ( Work Shop for Test 1)(5) Prove that a regular curve (i.e., curve with positivecurvature at all points) is a helix iff the ratio of the torsion tocurvature...
- Q Using SAS (Side-angle-side postulate), find a point on a givenline that is equally distant from two given points. Find themidpoint using SAS.
- Q The Butterfly Theorem. Suppose M is the midpoint of a chord P Qof a circle and AB and CD are two other chords that pass through M.Let AD and BC...
- Q For the following exercises, use the graphs to write an equation for the function.
- Q The Oxford Dictionary defines the word nominal as a value that is “stated or expressed but not necessarily corresponding exactly to the real value.” Develop a reasonable argument for why...
- Q This module covers Chapter 11, Section 11.1 to 11.4 and focuseson probability. One common example of probability is the daily orweekly lottery. Have you ever seen those drawings where they...
- Q explain the following and illustrate your ansers usingconstructions,label your figures (i) an orthocentre of a triangle(ii) an altitude of a triangle (iii) median of a triangle (iv)centroid of a triangle
- Q Could you please explain (step by step) how to find the Galoisgroup of x^3-2 over Q.
- Q Draw a schematic diagram and a context diagram for a standardblender. Identify all of the external entities and label all of theinteractions.
- Q The amount of outstanding consumer debt? (in trillions of?dollars) is approximated by g(t)= 0.365362 * 1.068022^t, wheret=0corresponds to 1980. Find the year in which consumer debt is(a) $2 trillion(b) $9...
- Q On May 12, 2008, a certain country had a 7.8 magnitudeearthquake. What was the intensity of that earthquake? (Round youranswer to two decimal places.)
- Q Youare walking 3.5 miles per hour. At this pace, how long will it taketo walk the 6 miles to school?
- Q solve the following1. solve the following inequality for X2x^2 +5x <32. without solving the equation 2x^2 +5x =3, how wouldI know that it has two rational solutions.3. 3^2(x+1) - 8.3^x+1...
- Q Let 3x3 matrix A = -3 0 -4 0 5 0 -4 0 3a) Find the eigenvalues of A and list their multiplicities.b) Find a basis, Bi, for each eigenspace, E(i).c) If...
- Q In hyperbolic geometry, suppose ABCD is a quadrilateral withright angles at C and D such that AD = BC. Show that AB > CD.Hint: Use Proposition 24 of Euclid.
- Q Applied MathLet T be the operator on P2 defined by the equationT(f)=f+(1+x)f'(a) Show T i linear operator from P2 intoP2!(b) Give matrix reppressentaion in base vectorssB={1,x,x2}!(c) Give a diagonal matrix...
- Q Directions: Conduct research on the effectiveness ofcompany celebrations. Research a specific company or use yourcurrent employer and answer the following questions in a 2 pageresponse:• What are 3 specific findings...
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