1 answer

I NEED HELP WITH NUMBER 8 & 9 Get a random sample of n=29 from the...

Question:

I NEED HELP WITH NUMBER 8 & 9

Get a random sample of n=29 from the data set.

H0: ? = 15

H1: ? ≠ 15

x f

10

4
11 6
12 7
13 5
14 4
15 2
16 1

Sampling distribution (assuming the null is true):

4. What is the mean of the sampling distribution? (+1)

mean= 15

5. What is standard error of the sampling distribution? (+1) Find it on the output. (+1)

standard error= 1.63

QUESTION:

obtained t= -8.89

8. Can you reject the null hypothesis? If so, at what significance level? (+2) Explain what this means. (+3)

9. What is the critical t? (+1)


Answers

standard error= se- )-63 At % level of signi cance far n-1 6 deque es of treed om = ±2.44 9 Decision Ruete Reject Ho at S lev

.

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