Question 475616
You have measured the percentage of days your company met production targets across two sites. 
At one site, you measure 80 days and found that the site missed the production goals 11 times.
p1-hat = 11/80
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 At site two, you measured 92 days and found that the site missed the production goals 10 times. 
p2-hat = 10/92
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At the 90% confidence level, can you say that site two missed the production goal fewer times than site one? State your hypothesis:
Ho: p1-p2 <= 0
Ha: p1-p2 > 0 (claim)
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I ran a 2-PropZtest on my TI-84 calculator and got the following:
test statistic: z = 0.5755
p-value = 0.2825
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Conclusion: Since the p-value is greater than 5%, fail to reject
Ho at the 5% level of significance.
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Cheers,
Stan H.
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