PLEASE ANSWER part 4 & 5 Since you have posted a question with multiple sub-parts, we will solve first three subparts for you. To get the remaining sub-parts solved, please repost the complete...



PLEASE ANSWER part 4 & 5


Since you have posted a question with multiple sub-parts, we will solve first three subparts for you.To get the remaining sub-parts solved, please repost the complete question and mention the sub-parts to be solved.”.




  1. State the null and alternative hypotheses

  2. Calculate the expected results for the hypothesis test assuming the null hypothesis is true and determine the hypothesis test model , i.e., “cut-off” critical values etc.

  3. Formulate the decision rule, i.e., include “one-tail ”left, or “one-tail” right, or “two-tail” determination etc.

  4. Determine the experimental outcome.

  5. Determine the conclusion, and answer the question(s) posed in the problem, if any.



(10) An astronomer is testing the claim that the mean brightness of a certain star is now<br>more than 30 units. The astronomer is able to get 6 readings on the star during an<br>experiment as shown in the table. Using a 1% level of significance, does this indicate<br>a new mean brightness of more than 30?<br>Reading<br>Brightness<br>1.<br>30<br>2.<br>30<br>3.<br>29<br>4.<br>31<br>5.<br>32<br>6.<br>33<br>

Extracted text: (10) An astronomer is testing the claim that the mean brightness of a certain star is now more than 30 units. The astronomer is able to get 6 readings on the star during an experiment as shown in the table. Using a 1% level of significance, does this indicate a new mean brightness of more than 30? Reading Brightness 1. 30 2. 30 3. 29 4. 31 5. 32 6. 33

Jun 11, 2022
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