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Avalon Bakery would like you to recommend how many loaves of its rye bread to bake at the beginning of each day. Each loaf costs the bakery $3.00 and can be sold for $6.00. Leftover loaves at the end of each day are donated to charity. Research has shown the probabilities for demands of 25, 50 and 75 loaves are 35%, 25%, and 40% respectively. Make a recommendation for the number of loaves Avalon should bake.
Sample data are reported for 50 employees of small companies, 75 employees of medium companies, and 100 employees of large companies.
Rhe frequency distribution summarizes a sample of times (in minutes) between eruptions of a cretain geyser. Find the approximate population mean and approximate population standard deviation of the data.
A new improved rocket launching system is being considered for short-range assault rockets. The requirement is that 80% of the rockets shall strike the target area at 800 meters. A sample of 36 experimental launches is made with 29 striking the ta..
What purpose does a multiple regression analysis serve? Give an example of how it might be used in marketing research.
Define validity and reliability. How can we insure our data is both reliable and valid? Which of these two do you think is the more important?
Determine the range, variance, and standard deviation for the sample data.
Construct a 99% confidence interval on the population mean height of all 1-year-old pine seedlings. What are the confidence limits? What statement can be made about the population mean height using the confidence interval?
Multiple choice questions based on multiple regression - Find the coefficient of determination for the above model
write down the hypothesis the test used the p-value and the interpretation then hand calculates a 95% CL for the odds ratio estimate on this last test.
construct a 95% confidence interval for the weekly average expenditure on fast food for adults 24 years of age and under. Assume fast food weekly expenditures are normally distributed.
Continuous random variable is uniformly distributed between a and b. The probability density function between a and b is.
If we want to estimate the populations mean travel-to-work time San Francisco residents with a margin of error of 1 minute, what sample size should be used? Assume 95 percent confidence.
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