PLEASE HELP WITH THESE 2 QUESTIONS PLEASE!!! THANK YOU! ************************

Question

PLEASE HELP WITH THESE 2 QUESTIONS PLEASE!!! THANK YOU!

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Use technology to help you test the claim about the population mean, u, at the given level of significance, a, using the given sample statistics. Assume the population is normally distributed Claim: > 11 90: = 0.06; = 197.66. Sample statistics: x#1222.73, n 200 What is the value of the standardized test statistic? The standardized test statistic is (Round to two decimal places as needed.) What is the P-value of the test statistic? P-value-Round to three decimal places as needed.) Decide whether to reject or fail to reject the null hypothesis. 0 A. Reject Ho. There is enough evidence to support the claim B. O C. O D. Reject Ho. There is not enough evidence to support the claim. Fail to reject Ho. There is enough evidence to support the claim. Fail to reject Ho- There is not enough evidence to support the claim.

Explanation / Answer

Image - 1:

The statistical software output for this problem is:

One sample Z summary hypothesis test:
: Mean of population
H0 : = 1190
HA : > 1190
Standard deviation = 197.66

Hypothesis test results:

Hence,

Test statistic = 2.34

p - Value = 0.010

Decision: Option A is correct.

Image - 2:

Since p - value is greater than 0.01, we do not reject Ho. Hence,

Option C is correct.

Mean n Sample Mean Std. Err. Z-Stat P-value 200 1222.73 13.976673 2.3417591 0.0096

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