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Author Question: Suppose a 98% confidence interval for turns out to be If this interval was based on a sample of ... (Read 111 times)

Pea0909berry

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Suppose a 98% confidence interval for μ turns out to be If this interval was based on a sample of size explain what assumptions are necessary for this interval to be valid.
◦ The sampling distribution of the sample mean must have a normal distribution.
◦ The population must have an approximately normal distribution.
◦ The sampling distribution must be biased with 21 degrees of freedom.
◦ The population of salaries must have an approximate t distribution.


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Marked as best answer by Pea0909berry on Jan 16, 2020

janieazgirl

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Pea0909berry

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Reply 2 on: Jan 16, 2020
YES! Correct, THANKS for helping me on my review


sarah_brady415

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Reply 3 on: Yesterday
:D TYSM

 

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