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CSTS-SEU-KSA

___________________________________________________________________

Statistics (STAT-101)

Assignment-3 (Weeks: 9-11)

2nd Semester, 1439-1440 (2018-2019)

Due date: 30/03/2019 (Time 11 PM )

Student’s Name

Student’s ID

Section/CRN

Location

Marking Scheme

Question

Score

Q-1

3

Q-2

3

Q-3

3

Q-4

3

Q-5

3

Q-6

3

Total

18

Obtained Score

CSTS-SEU-KSA

1. Various temperature measurements are recorded at different times for a particular city. The

mean of 20ºC is obtained for 40 temperatures on 40 different days. Assuming that σ=1.5ºC,

test the claim that the population mean is 22ºC. Use a 0.05 significance level.

Identify the null hypothesis, alternative hypothesis, test statistics, P-value and final the

conclusion about the original claim.

Solution:

𝐻𝑜 : 𝜇 = ...

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