Reference no: EM131643893

Question: The Ice Chalet offers dozens of different beginning iceskating 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 64 girls and 16 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.In one complete sentence, explain what the interval means.

2 Using the same p′ and level of confidence, suppose that n were increased to 100. Would the error bound become larger or smaller? How do you know?

3. Using the same p′ and n = 80, how would the error bound change if the confidence level were increased to 98%? Why?

4. If you decreased the allowable error bound, why would the minimum sample size increase (keeping the same level of confidence)?