Mathematics, 09.05.2020 20:57 thomasalmo2014
The manager of a grocery store has taken a random sample off 100 customers. The average length of time it took the customers in the sample to check out was 3.1 minutes. The population standard deviation is known to be .5 minutes. We want to test to determine whether or not the mean waiting time of all customers is significantly more than 3 minutes.
(A) calculate the test statistic
(B) calculate the p-value
(C) at a .05 level significance it can be concluded that the mean of the population is:
- significantly greater than 3
- Not significantly greater than 3
- Significantly less than 3
- Significantly greater than 3.18
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The manager of a grocery store has taken a random sample off 100 customers. The average length of ti...
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