# Hypothesis Testing, Test Statistics and Rejection Area

Let X... We observe X=9 out of n=15. Is the battery more likely to last more than 5 years?

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#### Solution Preview

i. test

Ho: p = 0.5 vs.

Ha : p > 0.5

ii. p^ = X/n = 9/15 = 0.6

we compute Standard error by

SE = SQRT ...

#### Solution Summary

Hypothesis testing, test statistics and rejection area are investigated and discussed in the solution. The solution is detailed and well presented.

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