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If a population is known to be normally distributed,then it follows that the sample mean must equal the population mean.
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Q3: In testing for the equality of means
Q4: A random sample n = 15 is
Q5: If p = .8 and n =
Q20: A standard normal distribution has a mean
Q28: When we test H<sub>0</sub>: p<sub>1</sub> − p<sub>2</sub>
Q36: The larger the p-value,the more we doubt
Q36: Two events are independent if the probability
Q58: Calculate the t statistic for testing equality
Q82: When establishing the classes for a frequency
Q92: The width of a confidence interval will