Mathematics, 14.05.2021 20:40 RealSavage4Life
CCN and ActMedia provided a television channel targeted to individuals waiting in supermarket checkout lines. The channel showed news, short features, and advertisements. The length of the program was based on the assumption that the population mean time a shopper stands in a supermarket checkout line is minutes. A sample of actual waiting times will be used to test this assumption and determine whether actual mean waiting time differs from this standard.
Required:
a. Formulate the hypotheses for this application.
b. A sample of 120 shoppers showed a sample mean waiting time of 8.5 minutes. Assume a population standard deviation of 3.2 minuest. What is the p-value?
c. At α= 0.01 what is your conclusion?
d. Compute a 95% confidence interval for the population mean. Does it support your conclusion?
Answers: 1
Mathematics, 21.06.2019 17:30, emiller6462
Use the net as an aid to compute the surface area of the triangular prism. a) 550 m2 b) 614 m2 c) 670 m2 d) 790 m2
Answers: 1
CCN and ActMedia provided a television channel targeted to individuals waiting in supermarket checko...
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