Question: 6.52What'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

6.52What'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 followingnull hypothesis:H0:= 23.
  2. (b)A randomsampleof size 30 is taken from apopulationthat is assumed to have astandard deviationof 5.The standard deviation of the samplemeanis 5/30.
  3. (c)A study with= 45 reportsstatistical significanceforHa:> 50.
  4. (d)A researcher tests the hypothesisH0:= 350 and concludes that the population mean is equal to 350.

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