Question

significance level. For what values of t will the null bypothesis not be rejecto A) Between -1.761 and 1.761 B) To the left of-1.345 or to the right of 1.345 C) To the left of -1.645 or to the right of 1.645 D) To the left of -1.282 or to the right of 1.282 14) A recent study focused on the amount of money single men and women save monthly. The infirmationi summarized next. Assume that the population standard deviations are equal. Sample Size Sample Mean Population Standard Deviation Men Women 25 30 23 28 10 At the .01 significance level, do women save more money than men? What is the value of the test statistic f this hypothesis test? A) +1.318 B)+2632 C)+2.40 D) +6.213 15) A national manufacturer of ball bearings is experimenting with two different processes for produscing precision ball bearings. It is important that the diameters be as close as possible to an industry standand. The output from each process is sampled and the average error from the industry standand is measured in millimeters. The results are presented next Process A Process B Sample mean 2.0 3.0 0.5 Standard deviation | 1.0 02 14 Sample size 12 The researcher is interested in determining whether there is evidence that the two processes yield different average errors. The population standard deviations are unknown but are assumed equal. What is the wull 16) Given the following ANOVA table for three treatments each with six observations: Source Sum of Squares df Mean Square Treatment Error Total 1116 1068 2184 What is the critical value of F at the 5% level of significance? B)3.68 )3.20 D3.59

Answer 1

4 > 2.402-2.40 2 IS 6)Ttd