Please answer question 4. Question #1For a just completed research project, the null hypothesis of the researchers was that the sample mean wasequal to the population mean. Or in equation form: M-.At the conclusion of the study, the following information was known:H=32.4М-35.6o- 6.3n- 25See page 5 of your notes if you cannot remember what these symbols mean.The formula to calculate Z for a population is: Z=- M - /(ơ/Vn). Note that the formula differs from asample z which you have calculated in the past. You may calculate the numerator and denominatorseparately, then calculate the actual Z.а. 2.54b. 1.56c. 2.35d. 1.6Question #2Assume your a is .05. What should be their decision about the null hypothesis and the conclusion for thestudy from Question 1? Use the z-table for this question. HINT: Does the z go beyond the threshold thatrepresents 95% of the area under the curve? If so your null is rejected. Apply this logic to the followingquestion.Hint: Is the sample mean far enough from the population mean at the .05 level?Do not reject; the threshold was equivalent to 95% of the area under the curve (p = .05).b. Reject; the sample mean was less than the threshold that represented 95% of the area under thecurve, hence p>.05.c. Reject; the sample mean was above the threshold that represented 95% of the area under thecurve, hence p<.05.a. Question #3Assume your a is .01. What should be their decision about the null hypothesis and the conclusion for thestudy from Question 1? Again, use the z-table for this question.Do not reject; the threshold was equivalent to 95% of the area under the curve (p = .05).b. Reject; the sample mean was less than the threshold that represented 99% of the area under thecurve, hence p>.01.а.Reject; the sample mean was above the threshold that represented 99% of the area under thecurve, hence p<.01.с.Question #4Assume your a is .001. What should be their decision about the null hypothesis and the conclusion forthe study from Question 1? Again, use the z-table for this question.а.Reject; the sample mean was beyond the threshold that represented 99.9 % of the area under thecurve, hencep<.001.b. Do not reject. The sample mean was NOT beyond the threshold that represented 99.9% of thearea under the curve, hencep>.001.c. Reject; the sample mean was NOT beyond the threshold that represented 99.9% of the area underthe curve, hence p<.001.

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To determine the rejetion of null hypothesis by assuming α = 0.001. To determine this as per given…

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Juestion #4 Assume your a is .001. What should be their decision about the null hypothesis and the conclusion for he study from Question 1? Again, use the z-table for this question. a. Reject; the sample mean was beyond the threshold that represented 99.9 % of the area under the curve, hence p<.001. b. Do not reject. The sample mean was NOT beyond the threshold that represented 99.9% of the area under the curve, hence p>.001. c. Reject; the sample mean was NOT beyond the threshold that represented 99.9% of the area under the curve, hence p<.001.

Juestion #4 Assume your a is .001. What should be their decision about the null hypothesis and the conclusion for he study from Question 1? Again, use the z-table for this question. a. Reject; the sample mean was beyond the threshold that represented 99.9 % of the area under the curve, hence p<.001. b. Do not reject. The sample mean was NOT beyond the threshold that represented 99.9% of the area under the curve, hence p>.001. c. Reject; the sample mean was NOT beyond the threshold that represented 99.9% of the area under the curve, hence p<.001.

MATLAB: An Introduction with Applications

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ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

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Question

Please answer question 4.

Question #3
Assume your a is .01. What should be their decision about the null hypothesis and the conclusion for the
study from Question 1? Again, use the z-table for this question.
Do not reject; the threshold was equivalent to 95% of the area under the curve (p = .05).
b. Reject; the sample mean was less than the threshold that represented 99% of the area under the
curve, hence p>.01.
а.
Reject; the sample mean was above the threshold that represented 99% of the area under the
curve, hence p<.01.
с.
Question #4
Assume your a is .001. What should be their decision about the null hypothesis and the conclusion for
the study from Question 1? Again, use the z-table for this question.
а.
Reject; the sample mean was beyond the threshold that represented 99.9 % of the area under the
curve, hencep<.001.
b. Do not reject. The sample mean was NOT beyond the threshold that represented 99.9% of the
area under the curve, hencep>.001.
c. Reject; the sample mean was NOT beyond the threshold that represented 99.9% of the area under
the curve, hence p<.001.

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