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In a rural area only about 16% of the wells that are drilled find adequate water at a depth of 100 feet or less. A local man claims to be able to find water by dowsing, that is, using forked stick to indicate where the well should be drilled. You check with 66 of his customers and find that 13 have wells less than 100 feet deep. Answer the questions below. Assume the independence assumption is met. (a) Write appropriate hypotheses. Ho: The percentage of successful wells drilled by the dowser is equal to 16%. HA: The percentage of successful wells drilled by the dowser is greater than 16%. (b) Check the necessary assumptions. The independence assumption is satisfied. The randomization condition is not satisfied. The 10% condition is satisfied. The success/failure condition is satisfied. (c) Perform the mechanics of the test. What is the P-value? (Round to three decimal places as needed.) P-value=

In a rural area only about 16% of the wells that are drilled find adequate water at a depth of 100 feet or less. A local man claims to be able to find water by dowsing, that is, using forked stick to indicate where the well should be drilled. You check with 66 of his customers and find that 13 have wells less than 100 feet deep. Answer the questions below. Assume the independence assumption is met. (a) Write appropriate hypotheses. Ho: The percentage of successful wells drilled by the dowser is equal to 16%. HA: The percentage of successful wells drilled by the dowser is greater than 16%. (b) Check the necessary assumptions. The independence assumption is satisfied. The randomization condition is not satisfied. The 10% condition is satisfied. The success/failure condition is satisfied. (c) Perform the mechanics of the test. What is the P-value? (Round to three decimal places as needed.) P-value=

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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what is the p-value?
In a rural area only about 16% of the wells that are drilled find adequate water at a depth of 100 feet or less. A local man claims to be able to find water by dowsing, that is, using a forked stick to indicate where the well should be drilled. You check with 66 of his customers and find that 13 have wells less than 100 feet deep. Answer the questions below. Assume the independence assumption is met. (a) Write appropriate hypotheses. Ho: The percentage of successful wells drilled by the dowser is equal to 16%. HA: The percentage of successful wells drilled by the dowser is greater than 16%. (b) Check the necessary assumptions. The independence assumption is satisfied. The randomization condition is not satisfied. The 10% condition is satisfied. The success/failure condition is satisfied. (c) Perform the mechanics of the test. What is the P-value? (Round to three decimal places as needed.) P-value= CITE
Transcribed Image Text:In a rural area only about 16% of the wells that are drilled find adequate water at a depth of 100 feet or less. A local man claims to be able to find water by dowsing, that is, using a forked stick to indicate where the well should be drilled. You check with 66 of his customers and find that 13 have wells less than 100 feet deep. Answer the questions below. Assume the independence assumption is met. (a) Write appropriate hypotheses. Ho: The percentage of successful wells drilled by the dowser is equal to 16%. HA: The percentage of successful wells drilled by the dowser is greater than 16%. (b) Check the necessary assumptions. The independence assumption is satisfied. The randomization condition is not satisfied. The 10% condition is satisfied. The success/failure condition is satisfied. (c) Perform the mechanics of the test. What is the P-value? (Round to three decimal places as needed.) P-value= CITE
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