![]() ![]() (a) The distribution of sample proportions of random samples of size 30 is left skewed. Determine if the following statements are true or false, and explain your reasoning. Suppose that 90% of orange tabby cats are male. (d) A random sample of 120 young Americans where 85% think they can achieve the American dream would be considered unusual.Ħ.3 Orange tabbies. (c) A random sample of 60 young Americans where 85% think they can achieve the American dream would be considered unusual. (b) The distribution of sample proportions of young Americans who think they can achieve the American dream in random samples of size 40 is approximately normal since \(n \ge 30\). (a) The distribution of sample proportions of young Americans who think they can achieve the American dream in samples of size 20 is left skewed. ![]() About 77% of young adults think they can achieve the American dream. (e) The standard error would be reduced by one-half if we increased the sample size from 125 to 250.Ħ.2 Young Americans, Part I. (d) A random sample of 250 college students where 12% are vegetarians would be considered unusual. (c) A random sample of 125 college students where 12% are vegetarians would be considered unusual. (b) The distribution of the sample proportions of vegetarian college students in random samples of size 50 is right skewed. ![]() (a) The distribution of the sample proportions of vegetarians in random samples of size 60 is approximately normal since \(n \ge 30\). Suppose that 8% of college students are vegetarians. ![]()
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