7 (1 point) The proportion of colorblindness in the American male population has historically been about 8%. You think this proportion might be declining over time. You randomly sample 100 American males, 6 of which are colorblind. A test of significance is conducted using H0 2 p Z 0. 08 VS Ha I p < 0.08 at 5% level of significance. What is the most appropriate conclusion? 0 A) At 5% level of significance, there is sufficient evidence to suggest that the proportion of colorblindness in American males is lower than 8%. O B) At 5% level of significance, there is not sufficient evidence to suggest that the proportion of colorblindness in American males is greater than 8%. O C) At 5% level of significance, there is sufficient evidence to suggest that the proportion of colorblindness in American males is greater than 8%. O D) At 5% level of significance, there is not sufficient evidence to suggest that the proportion of colorblindness in American males is lower than 8%. O E) At 5% level of significance, there is sufficient evidence to suggest that the proportion of colorblindness in American males differs from 8%. Previous Page Next Page Page 7 0f 11 Question 8 (1 point) The overall average body weight of a newborn elephant calf has been reported to be on average 250le. You are interested in determining if this differs significantly for elephants born in captivity. You find the average weight for your sample to be 220Ibs. If you were to perform a test of significance for this, what would the appropriate hypotheses be? 0 A) Hazy = 250, H\"; at 250 O B) H02}; 2 250, H\"; < 250 O C) H02\" 5 220, H\"; > 220 O D) Hod? = 220, HA? at 220 O E) Hazy at 250, H\"; = 250 Previous Page Next Page Page 8 0f 11 Question 6 (1 point) Suppose the proportion of deaths from ischemic heart disease (IHD) for all 15- to 64-year-old men in the U.S is 40%. However, you think this trend is increasing so you set about to determine this through a test of significant at < = 10%. What is the most appropriate set of hypotheses for this test? OHo : po < 0. 4 vs Ha : po 2 0.4 OHo : x < 0. 40 vs Ha : x > 0. 40 OHo : p < 0. 40 vs Ha : p > 0. 40 OHo : p < 0. 40 vs Ha : p > 0.40 O OHo : M < 0. 40 vs Ha : u > 0. 40 O Previous Page Next Page Page 6 of 11