Question

Twelve different video games showing substance use were observed and the duration of times of game play (in seconds) are listed below. The design of the study justifies the assumption that the sample can be treated as a simple random sample. Use the sample data to construct a 98 % confidence interval estimate of sigma , the standard deviation of the duration times of game play. Assume that this sample was obtained from a population with a normal distribution. 4 comma 470 4 comma 966 4 comma 109 5 comma 043 3 comma 995 4 comma 701 3 comma 975 4 comma 020 4 comma 409 4 comma 451 4 comma 006 4 comma 611 LOADING..

. Click the icon to view the table of Chi-Square critical values.

The confidence interval estimate is nothing secless thansigmaless than nothing sec. (Round to one decimal place as needed.)

Answer 1