The answer choices are 16/25 -4/25 -16/5 4/5

Answer: u = -39

Step-by-Step Explanation:

=> u + 47 = 8

First we have to shift 47 to the RHS. When we do that +47 becomes negative on the RHS.

=> u = 8 - 47

Now subtract 47 from 8 which will result in -39 because 47 > 8.

=> u = -39

7 0

2 years ago

An industrial psychologist consulting with a chain of music stores knows that the average number of complaints management receiv

vova2212 [387]

Answer: See explanation

Step-by-step explanation:

1. Use the five steps of hypothesis testing.

Step 1: The aim of the research is to conduct the five steps of hypothesis testing.

Step 2:

Null hypothesis: H0 u= 4

Population mean: H1 u = 4

Alternate hypothesis: u ≠ 4

Population mean: u ≠ 4

Step 3 and step 4 are attached.

Step 5: Based on the calculation, the calculated value of t is less than the t critical value, therefore, the null hypothesis will be failed to be rejected.

2. Sketch the distributions involved

This has been attached.

3. Explain the logic of what you did to a person who is familiar with hypothesis testing, but knows nothing about t tests of any kind.

The distribution is "t".

The means is tested by using T-test.

Chi-square is used to test the single variance.

8 0

3 years ago

Does anyone know how to solve this?

Dominik [7]

First, find the x-intercept of g(x) = x³ - 1. x³ = 1, so x = 1. The x-intercept is (1,0).

We must now find the equation of the tangent line to the graph at (1,0):

slope of tangent line = 3x^2 with x = 1, or m = 3(1)^2 = 3.

Last, find the equation of the line with slope 3 that passes through (1,0):

0 = 3(1) + b. Then b = -3, and the equation of the tangent line at (1,0) is

y = 3x - 3.

6 0

3 years ago

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