Construct a 90% confidence interval for a sampling distribution having a mean of 150, standard deviationof 20, and a size of 16.
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140.25 to 159.75As the confidence level increases for the same sampling distribution, the confidence interval_____________.
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What is the degree of freedom in a T-distribution?
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Always zeroConstruct a 93% confidence interval for a sampling distribution having means of {4, 4, 4, 4.2, 4.2, 4.3,4.3, 4.3, 4.4, 4.4, 4.4, 4.4, 4.5, 4.5, 4.6, 4.7, 4.7, 4.7, 4.8, 4.8, 4.8, 4.9, 4.9, 4.9, 4.9}.7% to 93%4.402 to 4.6064.391 to 4.6174.381 to 4.627Construct a 90% confidence interval for a sampling distribution having means of {4, 4, 4, 4.2, 4.2, 4.3,4.3, 4.3, 4.4, 4.4, 4.4, 4.4, 4.5, 4.5, 4.6, 4.7, 4.7, 4.7, 4.8, 4.8, 4.8, 4.9, 4.9, 4.9, 4.9}.4.402 to 4.606