Hi, I am looking for someone to write an article on introduction to statistics Paper must be at least 500 words. Please, no plagiarized work!

Hi, I am looking for someone to write an article on introduction to statistics Paper must be at least 500 words. Please, no plagiarized work! Introduction to Statistics Fall Assignment 6: T-Tests Analyse each one of the three cases below according to the following steps:

1. What is the appropriate test to implement and why?

2. Set up the null and alternative hypotheses.

3. What is the rejection rule?

4. Test at a significance level of 0.05 and present Excel output (copy and paste in Word document)

5. What is the rejection decision?

6. What is the conclusion?

Question 1

An investor compares the returns on car manufacturers and energy stocks.

He believes that energy stocks perform better.

He recorded 2 random samples of 6 returns in each industry. The numbers are given below:

Obs.

Car manufacturers

energy

1

11.5

9.4

2

8.2

17.1

3

3.5

17.4

4

6.2

7.1

5

7.5

22.4

6

9.2

10.1

What is the appropriate test to implement and why?

Independent sample t-test, because we are comparing means of two unrelated groups.

Set up the null and alternative hypotheses.

HO: µcar = µenergy

H1: µenergy &gt. µcar

What is the rejection rule?

If p ≤  reject H0, otherwise fail to reject H0

Test at a significance level of 0.05 and present Excel output (copy and paste in Word document)

Energy

Car manufacturers

Mean

13.91666667

7.683333333

Variance

35.13366667

7.373666667

Observations

6

6

Pooled Variance

21.25366667

Hypothesized Mean Difference

0

df

10

t Stat

2.