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A simple random sample of 36 St Bernard dog weights yields a sample mean of 193 pounds. It is known that the standard deviation of the population of all St Bernard dog weights is 18 pounds. Suppose you suspect that an average St Bernard dog weighs less than 200 pounds and decide to test this hypothesis. For this study set-up, answer the following questions. a) Write out the research question. b) Write the null and alternative hypotheses

A simple random sample of 36 St Bernard dog weights yields a sample mean of 193 pounds. It is known that the standard deviation of the population of all St Bernard dog weights is 18 pounds. Suppose you suspect that an average St Bernard dog weighs less than 200 pounds and decide to test this hypothesis. For this study set-up, answer the following questions. a) Write out the research question. b) Write the null and alternative hypotheses

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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A simple random sample of 36 St Bernard dog weights yields a sample mean of 193 pounds. It is known that the standard deviation of the population of all St Bernard dog weights is 18 pounds. Suppose you suspect that an average St Bernard dog weighs less than 200 pounds and decide to test this hypothesis. For this study set-up, answer the following questions. a) Write out the research question. b) Write the null and alternative hypotheses Ho: На: c) Decide what significance level you will work with. d) What type of data will you collect for this study? (Hint: think about what sampling technique and statistic are used)
Transcribed Image Text:A simple random sample of 36 St Bernard dog weights yields a sample mean of 193 pounds. It is known that the standard deviation of the population of all St Bernard dog weights is 18 pounds. Suppose you suspect that an average St Bernard dog weighs less than 200 pounds and decide to test this hypothesis. For this study set-up, answer the following questions. a) Write out the research question. b) Write the null and alternative hypotheses Ho: На: c) Decide what significance level you will work with. d) What type of data will you collect for this study? (Hint: think about what sampling technique and statistic are used)
d) What type of data will you collect for this study? (Hint: think about what sampling technique and statistic are used) Suppose based on the data collected you compute your p-value. e) What are the two possible results for a test on the stated hypotheses and when would you make each of those decisions (Hint: think in terms of p-values) ? f) In how many ways could you make wrong decisions while conducting a test of hypotheses in this study? What are these wrong decisions referred to as? (Hint: think types of errors that can be made in a hypothesis test)
Transcribed Image Text:d) What type of data will you collect for this study? (Hint: think about what sampling technique and statistic are used) Suppose based on the data collected you compute your p-value. e) What are the two possible results for a test on the stated hypotheses and when would you make each of those decisions (Hint: think in terms of p-values) ? f) In how many ways could you make wrong decisions while conducting a test of hypotheses in this study? What are these wrong decisions referred to as? (Hint: think types of errors that can be made in a hypothesis test)
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