Need help with part C and D

gag4 l About 25% of young Americans have delayed starting a family due to the continued economic slump. Determine if the following statements are true or false, and explain your reasoning. ' (a) The distribution of sample proportions of young Americans who have delayed starting a family due to the continued economic slump in random samples of size 12 is right skewed. 0 True, since the success-failure condition is not satised with a sample size of 12, the distribution off) is not approximately normal. Also, the distribution can go as high as 1 and as low as 0, and 0.25 is closer to 0, implying the distribution ls right skewed. . False, since the success-failure condition is not satised with a sample size of 12, the distribution off) is not approximately normal. Also, the distribution can go as high as 1 and as low as 0, and 0.25 is closer to 0, implying the distribution is left skewed. (b) In order for the distribution of sample proportions of young Americans who have delayed starting a family due to the continued economic slump to be approximately normal, we need random samples where the sample size is at least 40. 0 True, to have 10 successes with a probability of 0.25 we need a sample size of at least 40. False, to assume approximate normality we need sample sizes of 30 or greater. e I