SOLUTION: A random sample of 600 observations produced a sample proportion equal to 0.33. Find the critical and observed values of z for the following test of hypotheses using &#945; = 0.1.

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Question 613581: A random sample of 600 observations produced a sample proportion equal to 0.33. Find the critical and observed values of z for the following test of hypotheses using α = 0.1.
H0: p = 0.30 versus H1: p > 0.30
z critical= ?
z observed= ?
Round the answers to 3 significant digits.
Answer by stanbon(75887) (Show Source):
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A random sample of 600 observations produced a sample proportion equal to 0.33. Find the critical and observed values of z for the following test of hypotheses using α = 0.1.
H0: p = 0.30 versus H1: p > 0.30
z critical= invNorm(0.99) = 2.3263
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z observed= (0.33-0.30)/sqrt[0.3*0.7/600) = 1.6036
Round the answers to 3 significant digits.
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Cheers,
Stan H.
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SOLUTION: A random sample of 600 observations produced a sample proportion equal to 0.33. Find the critical and observed values of z for the following test of hypotheses using &#945; = 0.1.

SOLUTION: A random sample of 600 observations produced a sample proportion equal to 0.33. Find the critical and observed values of z for the following test of hypotheses using α = 0.1.