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statuscvo [17]
3 years ago
10

A pizza delivery chain advertises that it will deliver your pizza in 30 minutes from when the order is placed. Being a skeptic,

you decide to test and see if the mean delivery time is actually more than 30 minutes. For the simple random sample of 9 customers who record the amount of time it takes for each of their pizzas to be delivered, the mean is 35.4 minutes with a standard deviation of 7.6 minutes. Assume that the population distribution is approximately normal.
Required:
a. Perform a hypothesis test using a 0.05 level of significance.
b. State the null and alternative hypotheses for the test.
Mathematics
1 answer:
svp [43]3 years ago
3 0

Answer: B

Step-by-step explanation: So that you know you are only getting the best for what YOU PAID for.

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