QUESTION 15 A research wants to determine if pre-natal exposure to the hormones in birth control pills alters the sex makeup of midshipman fish populations (which are typically half male and half female). Specifically, the researcher wishes to test the hypothesis that exposure to hormones will increase the number of females in the population. The researcher exposes a group of pregnant midshipman fish to birth control hormones and records the sex of the first 10 offspring birthed. They then observe that 0 are female. Use a sign test to test the indicated hypothesis. What is the obtained value? Click Save and Submit to save and submit. Click Save All Answers to save all answers. Save A

QUESTION 5 Public relation companies conducted two surveys about deodorants. The first survey asked a random sample of 500 men about their use of a natural deodorant. A second survey asked the same questions to a random sample of 550 women. In these two studies, 68% of men and 44% of women stated they were dissatisfied with the effectiveness of natural deodorants. Use these results to answer the following questions about the proportion of men and women's satisfaction with natural deoderants. (Round to the nearest whole person as needed). What is the difference between the proportion of men and women? (write as a decimal) The standard error for these two samples is (round to the nearest hundredth) Using a 99% confidence level, the lower limit is and the upper limit is QUESTION 6 Save All Answe Click Save and Submit to save and submit. Click Save All Answers to save all answers. ILOIIOOCI V O UDDU Y D IIINO VIIIS UING DIUvUlU DINU W uvup Hotgut auvut youISUII UNu yu @四田07A CC DIC. étv 12…

QUESTION 6 Public relation companies conducted two surveys about deodorants. The first survey asked a random sample of 500 men about their use of a natural deodorant. A second survey asked the same questions to a random sample of 550 women. In these two studies, 68% of men and 44% of women stated they were dissatisfied with the effectiveness of natural deodorants. Use these results to answer the following questions about the proportion of men and women's satisfaction with natural deodorants. (Round to the nearest whole person as needed). Is there a statistically significant difference between men and women's satisfaction with natural deodorants? Yes, the proportion of men that are satisfied with natural deodorants is significantly less than the proportion of women that are satisfied with natural deodorants because both the lower limit and the upper limit of the confidence interval are positive values. Yes, the proportion of men that are satisfied with natural deodorants is…

Question 6 W A random sample of 300 United States cell phone users were asked their age and the question "Do you regularly use your cell phone to text while eating dinner?" The number responding yes was tabulated separately for young adults (aged 18-29), older adults (aged 30-64), and elderly adults (aged 65 or older). The results are summarized in the following table. Uses Cell Phone to Text while Eating Dinner Yes No Total Young adults 127 130 Age Group Older adults 113 29 142 Elderly adults 15 13 28 Total 255 45 300 Which of the following would be the appropriate hypotheses to investigate whether the survey provides convincing statistical evidence that there is an association between a person's age-group and regular use of a cell phone to text while eating dinner? Ho : Among adults in the United States population, there is no difference between age-groups in the proportion of individuals who use their cell phone to text while eating dinner. A H, : Among adults in the United States…