Unit activity: making inferences and conclusions...part D: based on your observations, what actually happens to the meaning of simple properties and the standard error of the proportion as you increase the number of samples... part E: according to the central limit theorem, what type of distribution will these sample proportions give you? Part F: calculate the 68%, 95%, and 99.7% confidence intervals for the sample proportions.

c

step-by-step explanation:

there is no points to select.

step-by-step explanation:

the revenue of the fitness center, y, is the product of two factors: the number of members and the fee paid by each member. there are 320 members now, but number of members goes down by 10 for each $5 increase in fees, so if x is the number of $5 price increases then members is equal to (320 - 10x). since the fee is currently $45, and the fee increases by $5 for every price bump x, the fee is given by (45 + 5x). so, revenue y is given by y = (320 - 10x)(45 + 5x).