Has there been a statistically significant change

Assignment Help Other Subject

Reference no: EM133651075

Question: Researchers are tracking shoppers and want to see if there has been statistically significant increase in the checkout time after incorporating a brief survey of their shopping experience. A reseacher observes 40 shoppers at one of the checkout lines, noting that the mean checkout time during that interval is 143 seconds, with a standard deviation of 18 seconds. They are told by management that the mean checkout time prior to this policy was 137 seconds. Has there been a statistically significant change?

Reference no: EM133651075

Questions Cloud

Preliminary processing before being completed : Preliminary processing before being completed at station 2. The processing time (in minutes) for a job at station

Is there any way to ask the court to dismiss the case : Assuming your service agrees with the facts as presented by the plaintiff, is there any way to ask the court to dismiss the case in your service's favor?

What should be the guaranteed delivery time : What should be the guaranteed delivery time on all packages in order to be 95% sure that the package will be delivered before this time

How undocumented children better protected from exploitation : Should penalties be increased on companies that violate child labor laws? How can undocumented children be better protected from exploitation?

Has there been a statistically significant change : They are told by management that the mean checkout time prior to this policy was 137 seconds. Has there been a statistically significant change

Compare the obtained t-statistic for the independent-groups : Compare the obtained t-statistic for the independent-groups t-test to Contrast 2 in the one-way ANOVA. Why do they differ?

What must organization be able to provide in a collaboration : Give an example of a collaboration opportunity and its associated value. What must an organization be able to provide in a collaboration?

Why is japan population declining : Why is Japan's population declining, examining Japanese society, what can help us to understand this phenomenon.

Explain which data supports the ai generated goal : Based on specific company data you found. If no revisions are necessary, then explain which data supports the AI generated goal. Provide links to specific data.

User Account

All Pages