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Did americans work less than 40 hours a week on average in 1977? in 1977, the gss included questions about the number of hours that the respondent worked per week. The average number of hours worked per week was 34. 61 hours with a standard deviation of 14. 77 hours. A sample of 32 respondents was questioned. Find the test statistic.

Sagot :

KhiradAfaq

The test statistic is, -2.06.

What is test statistic?

A programme and any related documentation are examined during static testing, a type of software testing that does not call for the programme to be run. Software testing also includes dynamic testing, which involves interacting with the application as it is being used.

Given: Americans work less than 40 hours a week on average in 1977?

In 1977, the GSS included questions about the number of hours that the respondent worked per week.

The average number of hours worked per week was 34. 61 hours with a standard deviation of 14. 77 hours.

A sample of 32 respondents was questioned.

So, the test statistics is,

Z = (x bar - μ)/(σ /√n)

 = (34.61 - 40)/(14.77/sqrt(32))

Z = -2.06

Hence, the test statistics is -2.06.

To know more about the test statistic, click on the link

https://brainly.com/question/15980493

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