Suppose data about the average number of hours people spend on social media websites at work is randomly collected for 5 days:   5.1        4.8        2.5        4.3        2.4   If we assume this population is normally distributed, construct an 99% confidence interval for the population average amount of time people spend on social media websites at work. Suppose I want to know more about how workers spend their

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Suppose data about the average number of hours people spend on social media websites at work is

randomly collected for 5 days:

 

5.1        4.8        2.5        4.3        2.4

 

  1. If we assume this population is normally distributed, construct an 99% confidence interval for the population average amount of time people spend on social media websites at work.
  2. Suppose I want to know more about how workers spend their time throughout the day. I want to find evidence to disprove the claim that people spend less than 3 hours a day (during their workday) on social media.  Test this claim (significance level =0.10). 

Do not use Excel 

 

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