For each setting indicate the appropriate statistical decision: Note: one submis

Question

For each setting indicate the appropriate statistical decision:

Note: one submission per part

A) Ho: 195 vs Ha: > 195
    n = 7; alpha = 0.05 and ttest = 2.62

--> Reject Ho ?

or

--> Fail to Reject Ho?

B) Ho: 130 vs Ha: < 130

    n = 15; alpha = 0.01 and ttest = -4.38

--> Reject Ho ?

or

--> Fail to Reject Ho?

C) Ho: = 250 vs Ha: 250

    n = 17; alpha = 0.02 and ttest = -2.01

--> Reject Ho ?

or

--> Fail to Reject Ho?

D) Ho: 220 vs Ha: > 220
    n = 12; alpha = 0.025 and ttest = 1.12

--> Reject Ho?

or

--> Fail to reject Ho?

E) Ho: 180 vs Ha: < 180

    n = 19; alpha = 0.025 and ttest = -2.31

--> Reject Ho?

or

--> Fail to reject Ho?

F) Ho: = 220 vs Ha: 220

    n = 13; alpha = 0.1 and ttest = 2.99

-->Reject Ho?

or

--> Fail to reject Ho?

Explanation / Answer

For each setting indicate the appropriate statistical decision:

Note: one submission per part

A) Ho: 195 vs Ha: > 195
    n = 7; alpha = 0.05 and ttest = 2.62

critical value : 1.943 t value > critical value

--> Reject Ho

B) Ho: 130 vs Ha: < 130

    n = 15; alpha = 0.01 and ttest = -4.38

critical value : -2.624

since t value < critical value

--> Reject Ho

C) Ho: = 250 vs Ha: 250

    n = 17; alpha = 0.02 and ttest = -2.01

critical value : +/- 2.583 since t > critical value ( negtive)

--> Fail to Reject Ho

D) Ho: 220 vs Ha: > 220
    n = 12; alpha = 0.025 and ttest = 1.12

critical value : 2.201 since t < critical value we fail to reject Ho

--> Fail to reject Ho

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