Statistics question and answers for November 09, 2023
- Q You are collecting data about your classmates favorite colors Which chart might be most helpful for representing the data A Scatter plot B None of these C Box and whisker...
- Q Why might you use a pareto chart to represent data A If you want to visualize how often data falls in certain intervals B If you want to show the...
- Q In a box and whisker chart what information do you learn from the position of the whiskers A The inter quartile range B The maximum and minimum of the data...
- Q dz dz Draw a dependency diagram and write a chain rule formula for and dq dr z f x y x m q r y g q r Choose the...
- Q The mean amount of time it takes a kidney stone to pass is 12 days and the standard deviation is 6 days Suppose that one individual is randomly chosen Let...
- Q The Acme Company manufactures widgets The distribution of widget weights is bell shaped The widget weights have a mean of 40 ounces and a standard deviation of 10 ounces Use...
- Q Suppose that the duration of a particular type of criminal trial is known to be normally distributed with a mean of 22 days and a standard deviation of 5 days...
- Q 1 30 points The fat content in 8 ayran samples was calculated by method A and method B and given in the table below Add your date of birth to...
- Q The scores on a standardized test are normally distributed with a mean of 100 and standard deviation of 10 What test score is 2 5 standard deviations above the mean
- Q 2 The x argument gives the number of children in a region and y the number of libraries in that region Summary information is below Ex 100 Ey 45 Exy...
- Q An engineer wants to determine how the weight of a gas powered car x affects gas mileage y The accompanying data represent the weights of various domestic cars and their...
- Q What is the age distribution of patients who make office visits to a doctor or nurse The following table is based on ased on informa Under 15 10 65 and...
- Q Find the critical value s and rejection region s for the type of z test with level of significance x Include a graph with your answer Right tailed test 0...
- Q 6 Given the shaded area to the left of 1 8 is 0 195 and the area to the left of 0 8 is 7100 answer the following questions a...
- Q The technique works for equations of any order for example first order If is a solution of the differential equation y 5x 4 y 0 then its coefficients a satisfy...
- Q Determine the moment about point P if F 100 N and the angle alpha is 60 degrees P 2 m 1 m F
- Q The table below shows the respective probabilities that a number of power failures will strike a certain subdivision in any given year with mean E X 1 9 and variance...
- Q 1 For the random variable with the given discrete probability distribution find the following Show your work to get credit 10 pt each Mean P x c P 2 b...
- Q Assume that a coin is tossed twice The coin may not be fair The sample space consists of the outcomes HH HT TH TT Is the given a probability model...
- Q a Place the digits 7 9 10 11 and 12 in the circles to make the sums across and vertically equal 28 b Is there more than one answer to...
- Q Scientists testing a new type of random number generator produced this set of data 51 49 18 51 50 31 52 49 51 34 Find the mean and standard deviation...
- Q ba Operfectly symmetric roughly symmetric C The overall shape of this graph is definitely skewed left 1 10 definitely skewed right 20 30 Acceptance Rate 40
- Q Assume a population of 42 49 52 and 58 Assume that samples of size n 2 are randomly selected with replacement from the population Listed below are the sixteen different...
- Q Suppose you computed r 0 817 using n 13 data points Using the critical values table below determine if the value of r is significant or not df CV and...
- Q Assume that we want to construct a confidence interval Do one of the following as appropriate a find the critical value t 2 b find the critical value Za 2...
- Q Use technology and a t test to test the claim about the population mean at the given level of significance using the given sample statistics Assume the population is normally...
- Q Use the definition of continuity and the properties of limits to show that the function is continuous at the given number a p v 4 7v 2 lim p v...
- Q George is studying the relationship between the number of employees at various companies and the amount of monthly overtime offered to employees and has collected the data shown in the...
- Q Don t drink and drive A highway safety council reported that there were 3942 fatalities among drivers in auto accidents in particular year Following is a frequency distribution of their...
- Q The scatter plot below shows data relating total income and the number of children a family has Which of the following patterns does the scatter plot show Income thousands 200...
- Q Bill has an orange that weighs 6 ounces and an apple that weighs 7 ounces ie 199 grams Which fruit is relatively heavier and why Paragraph B V v
- Q NUMATOMEM VAG PRAVY In a study conducted by the mechanical engineering department at a university the steel rods supplied by two different companies were compared Ten sample springs were made...
- Q Let X be a random variable with the probability distribution below Find Hg x where g x 2X 4 f x 3 3 Hg x 0 Simplify your answer 6...
- Q QUESTION 3 1 POINT Annie a pharmacist claims that a generic anti histamine dose is more than 18 mg on average Several of her coworker do not believe her so...
- Q Question Christine is the dean of students at a college She is concerned about the average amount of sleep students in the pre med program are getting Christine makes an...
- Q 2 Compute and interpret the sample correlation for the following dataset x Y 4 50 11 40 3 60 16 30
- Q Which of the data sets represented by the following histograms has the smallest standard deviation Select the correct answer below O 40 30 20 10
- Q z X X S when x 83 x 91 and z 2 3
- Q Find the area to the right of the z score 1 40 and to the left of the z score 1 58 under the standard normal curve Z 0 00...
- Q 1 Complete the following tables A Height Percent Cumulative Inches Freq Freq Freq 64 69 70 75 76 81 82 87 88 93 5 2 6 4 3 C Relative...
- Q How many kids In a survey 46 200 women were asked how many children they had The results were as follows Number of Number of Children Women 0 1 2...
- Q stion A two mean nonpooled hypothesis test has two samples of sizes 1 11 and 1 19 The samples have standard deviations of s 4 and s 8 The degrees...
- Q The graphs below represent the performance evaluations of 3 managers labeled A B and C on the same axis Determine which normal distribution has the largest mean Select the correct...
- Q Researchers are conducting a nonpooled two tailed two mean hypothesis test at a 5 significance level The two samples have sizes n 13 and 1 25 The samples have standard...
- Q Government funding The following table presents the budget in millions of dollars for selected organizations that received U S government funding for arts and culture in both 2004 and 2006...
- Q Age Range Less than 1 year 1 17 18 44 45 64 65 84 85 and up Total Send data to Excel art 1 of 3 What is the probability...
- Q Presidents and first ladies The following table presents the ages of 9 U S presidents and their wives on the first day of their presidencies Use a calculator to compute...
- Q Which of the following is the best measure of the center of this data set 012 2 3 4 MathBits com Numbers of Brothers and Sisters range O median only...
- Q Some researchers are doing a two mean pooled t test They have two samples with sizes n 25 and n 13 The population standard deviations are unknown but assumed to...
- Q Below is bivariate data on vintage dresser auctions where X is the year of construction of the dresser and Y is the price sold at auction X Y 1842 4500...
- Q ccording to a scientific journal an important property of a fiber is its water absorbency A random sample of 20 pieces of cotton fiber was taken and the absorbency measured...
- Q How many individual scores are in the following distribution 432LO f 2 1 0 N 5 N 6 N 10 N 4 1 2 3 4 X
- Q es a Calculate the centerline the upper control limit UCL and the lower control limit LCL for the chart if samples of size 9 are used Round the value for...
- Q A simple random sample of 90 is drawn from a normally distributed population and the mean is found to be 138 with a standard deviation of 34 What is the...
- Q lect all that apply 1993 1994 1995 1996 United States 1997 United States United States United States United States United States United States United States United States United States United...
- Q n 2011 there were 14 600 students at college A with a projected enrollment ncrease of 1000 students per year In the same year there were 35 600 students t...
- Q During a bowling league tournament the number of times that teams scored a strike every ten minutes was recorded by a scorekeeper The table below represents the probability density function...
- Q The Social Security Administration documented the marriage year of various couples along with the number of children they had Use the table given below to answer the following One 1...
- Q Use the given magic squares to complete part a and part b a Compute the sums of the numbers in each row column and diagonal of the square The sum...
- Q The average home price in Massachusetts is 410 000 with a standard deviation of 65 000 A city planner is studying th distribution across the state of home prices in...
- Q Quality control A population of 584 semiconductor wafers contains wafers from three lots The wafers are categorized by lot and by whether they conform to a thickness specification with the...
- Q 7pm Points 100 Submitting an external tool Two swimmers Angie and Beth from different teams wanted to find out who had the fastest time when compared to her team Compute...
- Q Between 1980 and 2012 the number of adults in a certain country who were overweight more than quadrupled from 14 to 58 Use this information to answer parts a and...
- Q Here is a data set If you were to construct a frequency table for this data set you would need to compute the class width a What is the maximum...
- Q ere is a bivariate data set X y 42 1 16 2 47 5 1 5 31 6 34 2 41 5 22 2 19 5 68 5 37 2...
- Q proximate the mean of the frequency distribution for the ages of the residents of a town Frequency Age 0 9 21 10 19 31 20 29 13 30 39 27...
- Q The table below shows the results of a survey that asked 2859 people whether they are involved in any type of charity work A person is selected at random from...
- Q Net Income and Stockholders Equity for Four Businesses Four different corporations Cancer Libra Sagittarius and Virgo show the same balance sheet data at the beginning and end of a year...
- Q S Find the indicated z score The graph depicts the standard normal distribution with mean 0 and standard deviation 1 The indicated z score is Round to two decimal places...
- Q Following is the probability distribution of a random variable that represents the number of extracurricular activities a college freshman participates in Part 1 of 3 Part 1 3 0 Part...
- Q Provide an appropriate response Round to the nearest hundredth Find the standard deviation for the given probability distribution x P x 1 0 18 2 0 38 3 0 10...
- Q The data in the table represent the stock price for a company at the end of each month in 2015 a Construct a time series plot and comment on any...
- Q Use the displayed dot sequence to answer parts a through e below a Which sequence illustrates the three diagrams that continue this dot sequence O A OB
- Q The data fatal accidents within the age group by gender Complete parts a through c below Number of Male Number of Licensed Age Drivers 000s 16 12 16 20 6...
- Q Use the accompanying radiation levels in P30 W for 50 different cell phones Find the percentile P30 Type an integer or decimal rounded to two decimal places as needed kg...
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