Find the standardized test statistic to test the claim that μ 1≠ μ 2. two samples are randomly selected from each population. the sample statistics are given below. use α = 0.02. n 1 = 51 n 2 = 38 1 = 3.3 2 = 3.7 s 1 = 0.76 s 2 = 0.51

The value of standardized test statistic -2.97.

Step-by-step explanation:

Given information: , , , , , ,.

Null hypothesis:

Alternative hypothesis:

The formula for standardized test statistic is

The value of for standardized test statistic is

Therefore the value of standardized test statistic -2.97.

answer:

it will cost 480 dollars to refurbish the larger wood floor

step-by-step explanation:

as it's a ratio of 4 that costs 384 dollars, divide the price by the ratio

384 / 4 = 96 dollars

96 dollars per unit of the ratio

now to get the price to refurbish the larger wood floor, times the price by the units

96 * 5 = 480