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Author Question: Suppose you suspect that a majority of the people in your neighborhood would like to start a ... (Read 48 times)

charchew

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on: Jul 24, 2018
Suppose you suspect that a majority of the people in your neighborhood would like to start a neighborhood watch program, but you want to conduct a hypothesis test to find out. What are your null and alternative hypotheses? Use symbols and numbers, and explain your symbols in words.

Question 2

Suppose you are conducting a one-sided hypothesis test for a difference in two means (using 2 independent large samples), and you have a test statistic of 2.3, which is in the direction of the alternative hypothesis. How extreme is this value and what is your conclusion for this test?


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hollysheppard095

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Reply #1 on: Jul 24, 2018
Answer to Question 1

NULL: p = .50, WHERE p = THE PROPORTION IN FAVOR; MEANING: THERE IS NO CLEAR OPINION ABOUT THE NEIGHBORHOOD WATCH PROGRAM EITHER WAY. ALTERNATIVE: p > .50; MEANING: THE MAJORITY OF THE POPULATION WOULD BE IN FAVOR OF A NEIGHBORHOOD WATCH PROGRAM.

Answer to Question 2

THE P-VALUE IS .01, WHICH IS PRETTY EXTREME. CONCLUSION: REJECT THE NULL HYPOTHESIS BECAUSE THE P-VALUE IS < .05 . THERE IS A SIGNIFICANT DIFFERENCE BETWEEN THE TWO POPULATION MEANS, AND THE FIRST POPULATION HAS A SMALLER MEAN THAN THE SECOND.


charchew

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Reply #2 on: Jul 24, 2018
Thanks


hollysheppard095

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Reply #3 on: Jul 24, 2018
Welcome :)


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