75 a and b 117words.(a) What do you expect the mean of the 's to be?(b) What do you expect the standard deviation of the 's to ber() What do you expect the shape of the a's to be? What guarantees this laca mean of $1553 and a standard deviation of $329.for a random sample of 50 students?(b) What is the probability that a randomly selected on-campus student spends more tha$1200 per semester?(C) What is the probability that a random sample of 50 students spends an average of less blaL$1500?(d) What is the probability that a random sample of 50 students spends an average of $1450 to$1600 per semester?74. Sunshine City was designed to attract retired people, and its current population of 50,000 residentshas a mean age of 60 years and a standard deviation of 16 years. The distribution of ages is skewedto the left.(a) What is the distribution of the sample mean age of residents for a random sample of 100residents?(b) What is the probability that a random sample of 100 residents have a mean age between 50and 70 years of age?What is the probability that the mean age of a random sample of 100 residents is less than55?75. According to Quantcast analytics of CrossFit.com, 59% of CrossFitters have children. Supposewe take a random sample of 40 Crossfitters and find the sample proportion (p) that have children.We repeat this process many times.(a) What do you expect the mean of the p's to be?(b) What do you expect the standard deviation of the p's to be?(c) What do you expect the shape of the p's to be?76. According to Quantcast analytics of CrossFit.com, 40% of CrossFitters have post-graduate de-grees. Suppose we take a random sample of 60 Crossfitters.(a) Describe the sampling distribution of the sample proportion of CrossFitters who have post-graduate degrees for samples of size 60.

From the provided information, 59% of Cross Fitters have children that is p = 0.59 Sample size (n) =…

According to Quantcast analytics of CrossFit.com, 59% of CrossFitters have children. Suppose we take a random sample of 40 Crossfitters and find the sample proportion (p) that have children. We repeat this process many times. (a) What do you expect the mean of the p's to be? (b) What do you expect the standard deviation of the p's to be?