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PiggyBank has narrowed its options down to two incentive plans:
A. cash back when the consumer makes an online purchase; and B cash back when consumer makes a purchase at a clothing store.
The bank doesn't know whether consumers would shop online more than at clothing stores.
Information Experts has placed you in a group to develop null and alternative hypotheses to help the bank determine which option would provide the best incentive to consumers. Work with your group members to develop the null and alternative hypotheses. As a group, write a brief memo to the PiggyBank product development team describing your hypotheses and explaining how you arrived at them
Any analysis required to check the required conditions (note that if you find that you cannot meet the required conditions for the test you expected to do, you must use the appropriate non-parametric test)
A political science professor is interested in finding out whether there is a relation between political affiliation and attitude towards a recent supreme court ruling about challenges to federal affirmative-action programs.
This morning the office you are monitoring has eight office visits on the schedule. What is the probability that
The average cost of repairing a VCR is $80 with a standard deviation of 19. if one VCR is repaired, find the probability the cost is between 70 and 90.
Which of the following is true about the random variables X, Y, and Z?
Fit a linear regression model for bp against sodium. Do you think this is a model with a good fit? Why?
All welders in a factory begin as apprentices. Every year the performance of each apprentice is reviewed. Past records indicate that after each review, 10% of the apprentices are promoted to professional welder
For a new HDTV the mean number of months until repairs are needed is 36.84 with a standard deviation of 3.34 months.
which is a value often used for the upper limit of the range of normal values. What do the results suggest about the sample group?
Find out point estimate and 95% confidence interval for mean family dental expenses of all employees of company.
What is the probability of this actually happening?
At the time she was hired as a server at the restaurant, Beth was told, "You can average more than $20 a day in tips." Over the first 31 days she was employed, the mean daily amount of her tips was $21.76,
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