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# 6.52 What's wrong?

6.52 What's wrong? Here are several situations where there is an incorrect application of the ideas presented in this section. Explain what is wrong in each situation and why it is wrong.

1. (a) A researcher tests the following null hypothesisH0:  = 23.
2. (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.
3. (c) A study with  = 45 reports statistical significance for Haμ > 50.
4. (d) A researcher tests the hypothesis H0μ = 350 and concludes that the population mean is equal to 350.

1. The parameter in the hypothesis is missing. 2. The formula for the standard... View the full answer

1) no population parameter 2) 5/sqrt(30) 3) 45 may... View the full answer

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