Mathematics
Mathematics, 14.09.2021 17:00, dayanaraa61

A pizza delivery chain advertises that it will deliver your pizza in 25 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 25 minutes. For the simple random sample of 12 customers who record the amount of time it takes for each of their pizzas to be delivered, the mean is 27.4 minutes with a standard deviation of 6.5 minutes. Assume that the population distribution is approximately normal. Perform a hypothesis test using a 0.01 level of significance. Draw a conclusion and interpret the decision.

answer
Answers: 3

Other questions on the subject: Mathematics

image
Mathematics, 21.06.2019 16:00, bailey1025
5× 1/2 = ? a) more than 5 because you are multiplying by a whole number b) 5/10 because you multiply the numerator and denominator by 5 c) less than 5 because you are multiplying by a number that is more than 1 d) less than 5 because you are multiplying by a number that is less than 1
Answers: 3
image
Mathematics, 21.06.2019 17:00, maryjane8872
Which point lies on a circle with a radius of 5 units and center at p(6, 1)?
Answers: 1
image
Mathematics, 21.06.2019 18:00, ash0470
Sara can take no more than 22 pounds of luggage on a trip. her suitcase weighs 112 ounces. how many more pounds can she pack without going over the limit?
Answers: 1
image
Mathematics, 21.06.2019 21:30, Kittylover65
The price of a visit to the dentist is calculated according to the formula 50+100n50+100n where nn is the number of cavities the dentist finds. on your last visit to the dentist, 22 cavities were found. what was the cost of your visit?
Answers: 2
Do you know the correct answer?
A pizza delivery chain advertises that it will deliver your pizza in 25 minutes from when the order...

Questions in other subjects:

Konu
Geography, 14.02.2021 17:40
Konu
Computers and Technology, 14.02.2021 17:40