GM 533 TCO (PC Manufacturer)

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Description

GM 533 - TCO (PC Manufacturer)

(TCO D) A PC manufacturer claims that no more than 2% of their machines are defective. In a random sample of 100 machines, it is found that 4.5% are defective. The manufacturer claims this is a fluke of the sample. At a .02 level of significance, test the manufacture's claim, and explain your answer.

MegaStat Output

Hypothesis test for proportion vs. hypothesized value

Observed

Hypothesized

p (as decimal)

5/100

2/100

p (as fraction)

4.5

2.0

X

100

100

n

std. error

z

.0371

p-value (one-tailed, upper)

(Points: 20)

Hypotheses:

Ho: p (null)

Ha: p (alternative)

Decision rule and test type:

"?"

Right tailed test (alternative is sign)

Critical value z_()

Reject the null if the test statistic exceeds .

Standard error ...

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