Education Inluences attituude and festyle. Differences in education are a big factor in the "generation gap." Is the younger generation realy better educated? Large surveys of people age 65 and older were taken in n, = 37 U.S. cties. The sample mean for these cibes showed that x 15.2% of the older adults had attended college. Large surveys of young adults (age 25 - 34) were taken in n,-32 U.S. attes. The sample mean for these dties showed that x, = 19.6% of the young adults had attended colege. From previous studies, tis known that o,- 6.8% and o, 5.6%. Does thts Informatian Indicate that the population mean percentage of young adults who attended college is higher? Use a D.05. (a) what ts the level of ston ficance? state the null and altemate hypotheses. O Hai H, = H H H, H2 (b) what sampling distribution will you use? what assumptions are you making? O The Student's t. We assume that both population distributions are approximately normal with unknown standard deviations. O The standard normal. We assume that both population distributions are approximately normal with known standard deviations. O The Student's t. We assume that both population distributions are approximately normal with known standard deviations. O The standard normal, We assume that both population distributions are approximately normal with unknown standard devtations. what is the value of the sample test statistic? (Test the difference u, - u Round your answer to two decimal places.) (c) Find (or estimate) the P-value. (Round your answer to four decmal places.) Sketch the sampling distribution and show the area corresponding to the P-value

How many sources of between-group variation are measured in a two-way between-subjects ANOVA? Group of answer choices a. 4 b. 2 c. 3 d. 5

1.) The Test Statistic for this data. (Round answer to 3 decimal places). 2.) The p-value for this sample. (Round answer to 4 decimal places).

In 1955, Life Magazine reported that the 25-year-old mother of three worked, on average, an 80 hour week. Recently, many groups have been studying whether or not the women’s movement has, in fact, resulted in an increase in the average work week for women (combining employment and at-home work). Suppose a study was done to determine if the mean work week has increased. 81 women were surveyed with the following results. The sample mean was 83; the sample standard deviation was ten. Does it appear that the mean work week has increased for women at the 5% level? Solve the following problems using the steps in conducting hypothesis tests.