Use the following information to answer the question. Studies show that since the pandemic started, screen time has increased dramatically. The daily average screen time before the pandemic was mu equal to 100 minutes. A sample of 50 individuals surveyed in the past two weeks produced M equal to 240 minutes and s equal to 110 minutes. Based on the sample, was there a significant increase in the daily average screen time since the pandemic started at the 5% level of significance? How many tails does this test have? one cannot determine two none

MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
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Use the following information to answer the question.
Studies show that since the pandemic started, screen time has increased
dramatically. The daily average screen time before the pandemic was mu
equal to 100 minutes. A sample of 50 individuals surveyed in the past two
weeks produced M equal to 240 minutes and s equal to 110 minutes.
Based on the sample, was there a significant increase in the daily average
screen time since the pandemic started at the 5% level of significance?
How many tails does this test have?
one
cannot determine
two
none
Transcribed Image Text:Use the following information to answer the question. Studies show that since the pandemic started, screen time has increased dramatically. The daily average screen time before the pandemic was mu equal to 100 minutes. A sample of 50 individuals surveyed in the past two weeks produced M equal to 240 minutes and s equal to 110 minutes. Based on the sample, was there a significant increase in the daily average screen time since the pandemic started at the 5% level of significance? How many tails does this test have? one cannot determine two none
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