MATH Help MAT 220 Test #3 Summer 2018 Plugin not installed or missing? Show More

Question

MATH Help MAT 220 Test #3 Summer 2018 Plugin not installed or missing? Show More #29 Of 30 1point #Unanswered: 6 Time remaining: 00:42 2 A test is made of H0: ?-56 versus Hi : ? > 56. A sample of size n-77 is drawn, and x-61 The population standard devah on is ? 28. Compute the value of the test statistics and determine if Ho is rejected at the ? 0.01 level. A) (B) 1.57, H0 rejected ( 0.18,Ho not rejected 1.57, Ho not rejected C 0.18, Ho rejected D 0.18, Ho not rejected Previous Bookmark Next Summary) Submit

Explanation / Answer

The statistical software output for thiis problem is:

One sample Z summary hypothesis test:
? : Mean of population
H0 : ? = 56
HA : ? > 56
Standard deviation = 28

Hypothesis test results:

Hence,

Test statistic = 1.57

Ho not rejected

Option A is correct.

Mean n Sample Mean Std. Err. Z-Stat P-value ? 77 61 3.1908961 1.5669579 0.0586

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