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I claim that the mean average score on this Final will be an 80. A student...

I claim that the mean average score on this Final will be an 80. A student disagrees with me. The standard error is 10 with a significant value of 5%. Using the Z score table in the given mean:

  1. State the null and alternative hypothesis
  2. Determine and draw the hypothesis testing the model
  3. Determine the conclusion for each of the test statistic is the following:
  1. Test stat: 2.5
  2. Test stat: 2
  3. Test stat: 1.3
Math   Statistics-And-Probability   
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Answer #1

c) (i) There is no sufficient evidence to support the claim that the mean average score is 80.

(ii) There is no sufficient evidence to support the claim that the mean average score is 80.

(iii) There isis sufficient evidence to support the claim that the mean average score is 80.

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