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Suppose that we regress the number of races a marathon runner wins on the average time it takes the runner in a marathon in minutes and get the estimates for the intercept and slope coefficient respectively. Now we run the same regression but measure the average finishing time in hours instead of minutes and get a new set of estimated coefficients. Will the new slope be smaller or larger than the old slope?
You must address all the assumptions for any statistical procedure you use and you must state the procedure you use.
Write a news story of a few sentences describing the results of the survey, being truthful but biasing the story in favor of teaching creationism.
sample mean = 3.5, standard deviation = 0.9. Use 98% confidence interval to evaluate difference in mean weekly deposits into IRAs for each bank.
consider the following linear programming problemmaximize 10x 12ysubject to3y 2x ? 3603y 4x ? 480x y ? 0what is the
a. Is there evidence the mean amount is different from 1.0 gallon (alpha= 0.01)? b. Compute the p-value and interpret its meaning. c. construct a 99% confidence interval estimate of the population mean amount of paint.
the question is given belowcornwell glass produces replacement automobile glass for all makes of cars. cornwell has a
a survey of adults found that 55 have used a multivitamin in the past 12 months. you randomly select 50 adults and ask
You are having a meeting with the employees of Financial Outsourcing, Inc. During the meeting, you were asked several questions. Give your opinion to the questions.
What is the formula for converting z-scores to percentiles? I want to build a tool in Excel so i can get percentiles from test scores on normally distributed psychometric tests.
Calculate the mean, median, and standard deviation for both the sample of new states in which you will have facilities AND calculate the mean, median and standard deviation for the national population of median home prices. You note that there ar..
Find the mean, variance, and standard deviation. Construct a frequency table with ?ve classes.
Can we reject the psychologist's claim that the proportion of married couples for whom her program can prevent divorce is at least 76%?
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