How do I do this? (Number 5)
1 answer:
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The 99% confidence interval for the true mean is given by:
where:
is the sample mean = 69.7
is the standard deviation = 2.8
is the test statistics = 2.58 for for 99% confidentce interval.
n is the sample size = 772.
Therefore, the 99% confidence interval is:
where:
n is the sample size = 772.
Therefore, the 99% confidence interval is:
Answer:
Two answers are possible
Step-by-step explanation:
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