Whats wrong Here are several situations where there is an
Chapter , Problem 6.52(choose chapter or problem)
Whats wrong? Here are several situations where there is an incorrect application of the ideas presented in this section. Write a short paragraph explaining what is wrong in each situation and why it is wrong. (a) A researcher tests the following null hypothesis: H0: x 23. (b) A random sample of size 30 is taken from a population that is assumed to have a standard deviation of 5. The standard deviation of the sample mean is 5/30. (c) A study with x 45 reports statistical significance for Ha: m 50. (d) A researcher tests the hypothesis H0: m 350 and concludes that the population mean is equal to 350. 6.
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