It seems these days that college graduates who are employed full-time work more than 40-hour weeks....

 

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It seems these days that college graduates who are employed full-time work more than 40-hour weeks. Data are available that can help us decide if this is tru A survey was recently sent to a group of adults selected at random. There were 15 respondents who were college graduates employed full-time. The mean number of hours worked per week by these 15 respondents was 41 hours, with a standard deviation of 10 hours. Assume that the population of hours worked per week by college graduates employed full-time is normally distributed with mean μ. Can we conclude that μ is greater than 40 hours? Use the 0.1 level of significance. Perform a one-tailed test. Then fill in the table below. Carry your intermediate computations to at least three decimal places and round your answers as specified in the table. (If necessary, consult a list of formulas The null hypothesis: Ho 0 The alternative hypothesis: 8 720 The type of test statistic: The value of the test statistic: (Round to at least three decimal places.) The critical value at the 0.1 level of significance: (Round to at least three decimal places.) FACU! 10010 7 (Choose one) 0 0 2 DEO -- X 6 ? Can we conclude, at the 0.1 level of significance, that the mean number of hours worked per week by college graduates is greater than 40 hours? Yes No It seems these days that college graduates who are employed full-time work more than 40-hour weeks. Data are available that can help us decide if this is tru A survey was recently sent to a group of adults selected at random. There were 15 respondents who were college graduates employed full-time. The mean number of hours worked per week by these 15 respondents was 41 hours, with a standard deviation of 10 hours. Assume that the population of hours worked per week by college graduates employed full-time is normally distributed with mean μ. Can we conclude that μ is greater than 40 hours? Use the 0.1 level of significance. Perform a one-tailed test. Then fill in the table below. Carry your intermediate computations to at least three decimal places and round your answers as specified in the table. (If necessary, consult a list of formulas The null hypothesis: Ho 0 The alternative hypothesis: 8 720 The type of test statistic: The value of the test statistic: (Round to at least three decimal places.) The critical value at the 0.1 level of significance: (Round to at least three decimal places.) FACU! 10010 7 (Choose one) 0 0 2 DEO -- X 6 ? Can we conclude, at the 0.1 level of significance, that the mean number of hours worked per week by college graduates is greater than 40 hours? Yes No