What are the null hypothesis (H,) and the alternative hypothesis (H,) that should be used for the test?
H,: u is ?
H: u is ?
In the context of this test, what is a Type II error?
A Type II error is ?
| fact, μ is 2
] the hypothesis that u is ?
] when, in
Suppose that the consultant decides not to reject the null hypothesis. What sort of error might she be
making? ?
Transcribed: What are the null hypothesis (H,) and the alternative hypothesis (H,) that should be used for the test?
|Ho: µ is ?
|H: µ is ?
In the context of this test, what is a Type II error?
V? v when, in
A Type II error is ?
fact, u is ?
| the hypothesis that u is ?
Suppose that the consultant decides not to reject the null hypothesis. What sort of error might she be
making? ?
Transcribed: Executives of a supermarket chain are interested in the amount of time that customers spend in the stores during shopping trips. The mean
shopping time, µ, spent by customers at the supermarkets has been reported to be 40 minutes, but executives hire a statistical consultant and
ask her to determine whether it can be concluded that u is greater than 40 minutes.
To perform her statistical test, the consultant collects a random sample of shopping times at the supermarkets. She computes the mean of
these times to be 46 minutes and the standard deviation of the times to be 16 minutes.
Based on this information, answer the questions below.