Question related to mean shopping time at local supermarket

Reference no: EM1393153

An article in USA Today claims that the typical supermarket trip takes an average of 22 minutes. Suppose that in an effort to test this claim, you select a sample of 50 shoppers at a local supermarket. The mean shopping time for the sample was 25.36 minutes with a standard deviation of 7.24 minutes. Using the 0.10 level of significance, is there evidence that the mean shopping time at the local supermarket is greater than the claimed value of 22 minutes?

Reference no: EM1393153

Questions Cloud

Mean and standard deviation when population of scores given : A population of scores has m=50 and o=10. If 5 points are added to every score in the population, then the new mean and standard deviation would be:

Explain aphorisms short-witty nuggets of wisdom : Why do you believe Thoreau spent so much time explaining house that he bought? What was his key point about house itself, and how do you know this?

Mean diastolic blood pressure : The mean diastolic blood pressure for random sample of 90 people was 92 millimeters of mercury. If the standard deviation of individual blood pressure readings is known to be 12 millimeters of mercury

Draw the tripeptide his glu ala : Draw the tripeptide His Glu Ala, with charges, at pH 5. Recognize the C-terminus, the N-terminus, a peptide bond.

Question related to mean shopping time at local supermarket : Using the 0.10 level of significance, is there evidence that the mean shopping time at the local supermarket is greater than the claimed value of 22 minutes?

Anatomical changes in the vertebrate body plan : Discuss five anatomical changes in the vertebrate body plan during the course of vertibrate evolution and describe how each of the changes have influenced the history of Vertebrates.

Constructing confidence interval-mean amount of paint : Construct a 99% confidence interval estimate of the population mean amount of paint in a 1-gallon can.

Distinguish two literary works of country lovers : What does it mean when they tell you to distinguish two literary works with the same them? For instance like The Welcome Table and Country Lovers.

Evidence to support the claim of society : A human society claims that less than 31% of U.S. households own a dog. In a random sample of 392 U.S. households, 155 say they own a dog. At a=0.03, is there enough evidence to support the society's claim?

User Account

All Pages