Did Americans work less than 40 hours a week on average in 1980? In 1980, the GSS included questions about the number of hours that the respondent worked per week. The average numbe of hours worked per week was 39.61 hours with a standard. deviation of 14.41 hours. A sample of 30 respondents was questioned. Find the test statistic.

MATLAB: An Introduction with Applications
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Did Americans work less than 40 hours a week on average in
1980? In 1980, the GSS included questions about the number of
hours that the respondent worked per week. The average number
of hours worked per week was 39.61 hours with a standard
deviation of 14.41 hours. A sample of 30 respondents was
questioned.
Find the test statistic.
-0.148
O 0.148
Transcribed Image Text:Did Americans work less than 40 hours a week on average in 1980? In 1980, the GSS included questions about the number of hours that the respondent worked per week. The average number of hours worked per week was 39.61 hours with a standard deviation of 14.41 hours. A sample of 30 respondents was questioned. Find the test statistic. -0.148 O 0.148
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