2017 Fall On-ine 120 Quiz: Ch 7 Review Time Remaining 0 on: 16 of 25 (2 complete

Question

2017 Fall On-ine 120 Quiz: Ch 7 Review Time Remaining 0 on: 16 of 25 (2 complete) Twelve different video game s showing substance use were observed and the dration times of game play in seconds-hh low The de gndt st just es the assumption that the sample can be treated as a single rand en sample Use the data to construd a 95% confidence her al e rate o te mean duration of game play 4045 3876 3867 4027 4309 4821 Click here What is the confidence interval estimate of the population mean ? (Round to one decimal place as needed) 4656 4034 5010 4824 4341 4317 Enter your answer in each of the answer boxes 054 AM =) 11/7/2017

Explanation / Answer

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Q1)

The average of the values is 4343.917

The stdev of the values is 380.0586

The 95% CI is given by a Z = 1.96:

Mean +/- Z*Stdev

=4343.917 +/- 1.96*380.0586

=3599.002 to 5088.832

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