When all subjects in the 2008 GSS who were working full- or part-time were asked how many hours they worked in the previous week at all jobs (variable HRS1), software produced the following analyses:

For this printout,
a. State the hypotheses.
b. Explain how to interpret the values of (i) SE Mean, (ii) T, and (iii) P.
c. Show the correspondence between a decision in the test using a significance level of 0.05 and whether 40 falls in the confidence interval reported.

Transcribed Image Text:

Test of mu 40 vs not 40 N Mean StDev SE Mean 95% CI T (41. 171, 1202 41.990 14.480 0.418 42.809) 4.76 0.000