Basic Math question and answers for October 05, 2023
- Q Some people are concerned that new tougher standards and?high-stakes tests adopted in many states have driven up the highschool dropout rate. The National Center for Education Statisticsreported that the high...
- Q Please think of an example of a value that you have seen orheard recently, and then tell us if this is qualitative orquantitative, is it discrete or continuous, and is...
- Q A sample of final exam scores is normally distributed with amean equal to 23 and a variance equal to 16.Part (a)What percentage of scores are between 19 and 27? (Round...
- Q The strategy of the courtroom is a subtle thing. Common sensewould say that a criminal who admits guilt is treated moreleniently while a defiant criminal gets a harsher sentence. To...
- Q Discuss the advantages and disadvantages of using R to analyzedata compared to a spreadsheet tool such as Microsoft Excel orTableau. Provide specific examples to illustrate your ideas.
- Q An email system sends incoming mail to either the In-Folder (I)or the Trash Folder (T). You classify incoming mail as Useful (U),in which case you want it sent to I,...
- Q 1. A grocery store counts the number of customers who arriveduring an hour. The average over a year is 29 customers per hour.Assume the arrival of customers follows a Poisson...
- Q QUESTION 4You gather data from 28 parolees who are currently enrolled injob training programs while on parole. You find that over the pastyear, they have been cited an average of...
- Q he weight of an organ in adult males has a? bell-shapeddistribution with a mean of 320 grams and a standard deviation of45 grams. Use the empirical rule to determine the...
- Q A soccer ball manufacturer wants to estimate the meancircumference of? mini-soccer balls within 0.05 inch. Assume thepopulation of circumferences is normally distributed.?(a) Determine the minimum sample size required to construct...
- Q (1 point) Rework problem 27 from section 3.2 of your text,involving the mice in a cage. For this problem, assume there are 6grey females, 6 grey males, 5 white females,...
- Q Let X1,X2,...,Xn be a random sample from any distribution withmean ? and moment generating function M(t). Assume that M(t) isfinite for some t > 0.Let c>? be any constant. Let...
- Q The police department in Madison, Connecticut, released thefollowing numbers of calls for the different days of the weekduring a February that had 28 days: Monday (114); Tuesday (152);Wednesday (160); Thursday...
- Q The size of the left upper chamber of the heart is one measureof cardiovascular health. When the upper left chamber is enlarged,the risk of heart problems is increased. A paper...
- Q 1. For a data set with 3 variables and 3 observations, supposeXbar, the sample mean vector is [5, 3, 4]’. Let b’ = (1 1 1) and c’= (1 2...
- Q Suppose a road is flooded with probability p = 0.10 during ayear and not more than one flood occurs during a year.What is the probability that it will be flooded...
- Q a) A coin is flipped 6 times, find the probability ofgetting exactly 4 heads. Hint: The Binomial DistributionTable can be very helpful on questions 19-21. Ifyou use the table for this question, give...
- Q A statistician wishes to determine whethercurrent unemployment rates differ between Urban and Rural areas ofthe United States. A sample of ten states each was randomly chosenfrom all 50 states. The...
- Q For this problem, carry at least four digits after the decimalin your calculations. Answers may vary slightly due torounding.In a random sample of 520 judges, it was found that 291...
- Q Roll two fair dice. Each die has six faces.A. Let A be the event that either a 3 or 4 is rolled firstfollowed by an odd number. P(A) = Round your...
- Q Lets use Excel to simulate rolling two 8-sided dice and findingthe rolled sum.• Open a new Excel document.• Click on cell A1, then click on the function icon fx andselect...
- Q 3. A box contains 5 red balls, 3 blue balls and 1 black balls.Take two balls out randomly. Let X be number of red balls and Y bethe number of...
- Q Provide a case scenario of a problem (actual or hypothetical)that involves a continuous random variable X that follows a normalprobability distribution. Ideally, it will come from your work orfield of...
- Q 1. Briefly explain Null Hypothesis H and Alternate Hypothesis.Give an example for each.2. Briefly explain hypothesis testing process. Give anexample.Note: type it rather than handwritting.
- Q A business school conducted a survey of companies in its state.They mailed a questionnaire to 200 small companies, 200medium-sized companies and 200 large companies. The rate ofnonresponse is important in...
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