An experiment was conducted to test the effect of a new stain remover. Twenty stains were treated with stain remover A and stain remover B for a week, then the number of stains removed was measured. Asignificance test was conducted at the a = 0.10 level for the difference in the means of the number of stains removed between stain remover A and stain remover B. The test resulted in t = 1.37 and p = 0.17. If thealternative hypothesis in question is Ha: HA - HB #0, where μA equals the mean number of stains removed with stain remover A and μg equals the mean number of stains removed with stain remover B, whatconclusion can be drawn?O There is a significant difference in the mean effectiveness of two stain removers.O There is sufficient evidence that stain remover A works better than stain remover B.O The proportion of stains that stain remover A removed is greater than the proportion of stains removed by stain remover B.O There is insufficient evidence that the proportion of stains removed by stain remover A and stain remover B is different.O There is insufficient evidence that there is a difference in the mean effectiveness of stain remover A and the mean effectiveness of stain remover B.

Step 1: Determine the appropriate decision for this hypothesis testDecision Rule: Reject the null…

Answered: An experiment was conducted to test the…

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter4: Equations Of Linear Functions

Section4.5: Correlation And Causation

Problem 2AGP

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Use the figure to the right, which shows the percentages of adults from several countries who favor building new nuclear power plants in their country. The survey incduded random samples of 1100 adults from Country A, 1012 adults from Country B, 1024 adults from Country C, and 1078 adults from Country D. At a=0.09, can you reject the claim that the proportion of adults in Country C who favor building new nuclear power plants in their country is greater than the proportion of adults from Country D who favor building new nuclear 80- power plants in their country? Assume the random samples are independent. 100- 60 40 20- I Country A 49% I Country B 48% O Country C 45% O Country D 41% Identify the claim and state H, and H. The claim is "the proportion of adults Country C who favor building new nuclear power plants in their country is greater than the proportion of adults from Country D who favor building new nuclear power plants in their country." Let p, represent the population proportion…
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