Answer Happy

12. Use proportion population. The Ice Chalet offers dozens of different beginning ice-skating classes. All of the class names are put into a bucket. The 5 P.M., Monday night, ages 8 to 12, beginning ice-skating class was picked. In that class were 84 girls and 36 boys. Suppose that we are interested in the true proportion of girls, ages 8 to 12, in all beginning ice-skating classes at the Ice Chalet. Assume that the children in the selected class are a random sample of the population. 1) What is being counted? 2). In other words, define the random variable X. 3). Calculate the following: ax b. n = c. p' = 4). State the estimated distribution of X X- 5). Define a new random variable P. What is p' estimating? 6). In other words, define the random variable Pl. 7). State the estimated distribution of Pl. Construct a 92% Confidence Interval for the true proportion of girls in the ages 8 to 12 beginning ice-skating classes at the Ice Chalet