There were 855 major league baseball players in 2012 and their mean salary was  = 3.44 million dollars with standard deviation  = 4.70 million dollars. If we take random samples of size n = 30 players and calculate the mean salary, in millions of dollars, of each sample, describe the shape, center, and standard error of the distribution of sample means : Using the t-Distribution
(a) Find endpoints of a t-distribution with 5% beyond them in each tail if the sample has size n = 18.

(b) Find the area in a t-distribution to the right of 2.30 if the sample has size n = 15.

(c) Find the area in a t-distribution to the left of 1.22 if the sample has size n = 50.

it is x=-4

step-by-step explanation:

step-by-step explanation:

part a. the differences are decreasing, so we know the sequence is not arithmetic. the ratios are constant (=3/4), so we know the sequence is geometric.

part b. from part a, we know the common ratio is 3/4, so each term is 3/4 of the one before. the initial term is the number of gallons at h=1.

g[h] = (3/4)·g[h-1]

g[1] = 384 . . . . initial value required for a recursive definition

part c. the general formula for a geometric sequence is

a[n] = a[1]·r^(n-1)

we have a[1] = 384, r = 3/4, and the term number given by h. the formula that follows is

g[h] = 384·(3/4)^(h-1)

part d. filling in the value and doing the arithmetic, we have

g[12] = 384·(3/4)^11 ≈ 384·0.042235136 ≈ 16.2183 . . gallons

part e. each gallon is 4 quarts, so

16.2183 gal × 4 qt/gal = 64.8732 qt

0lz try yourself sorry for not answering