and alternative hypotheses 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. Formulate the decision rule, i.e., include “one-tail ”left, or “one-tail” right, or “two-tail” determination etc. Determine the experimental outcome. Determine the conclusion, and answer the question(s) posed in the problem, if any. 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?

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  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.
  1. 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?
(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
Transcribed Image 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
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