Consider the following data for two independent random samples taken from two normal populations.

sample 1: 10 7 13 7 9 8

sample 2: 8 7 8 4 6 9

a. compute the two sample means.

sample 1: answer

sample 2: answer

b. compute the two sample standard deviation (to 2 decimals).

sample 1: answer

sample 2: answer

c. what is the point estimate of the difference between the two population means?

answer

d. what is the 90% confidence interval estimate of the difference between the two population means (to 2 decimals - - use 9 degrees of freedom)?

( answer , answer )

it is part of the rising action that reveals public sentiment toward hester.

explanation:

13.33%

say 50 oranges, then 100 apples

80 are red, 20 are yellow

total fruit = 150

20chances out of 150 for yellow

20/150 = 13.33%

step-by-step explanation:

descending order means to order the polynomials from the term with the largest exponent to the term with the smallest exponent.  

therefore, the correct answer is d.  

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