Description
- Attached are screenshots of questions 2, 3, and 7
- Answer them and show all work
- Include the each question # to its answer
- Must be typed
Unformatted Attachment Preview
Purchase answer to see full attachment
Explanation & Answer
See attached
QUESTION 2
a)Test statistic
test statistic(z) =
̅̅̅̅− 𝑥2
̅̅̅̅
𝑥1
2
2
√𝜎1 +𝜎2
𝑛1
𝑛2
=
25.2−22.8
2
2
√5.2 +6
40
= 2.03
50
b) p value
From z tab...