A researcher is examining whether humidity level impacts the probability of success of LASIK surgery. Seventy five individuals received LASIK surgery during high humidity weather and 135 individuals received the surgery during normal or low humidity weather. The researcher found that 23 of the high humidity subjects and 17 of the normal/ low humidity subjects required touch-up surgery. Is there a difference in the proportion who needed touch-up surgery based on humidity? Run the test at a 5% level of significance. 1) the appropriate null and alternative hypotheses; 2) the appropriate test); 3) the decision rule. 4) the calculation of the test statistic. 5) your conclusion including a comparison to alpha or the critical value. What do the results mean?
A researcher is examining whether humidity level impacts the probability of success of LASIK surgery. Seventy five individuals received LASIK surgery during high humidity weather and 135 individuals received the surgery during normal or low humidity weather. The researcher found that 23 of the high humidity subjects and 17 of the normal/ low humidity subjects required touch-up surgery. Is there a difference in the proportion who needed touch-up surgery based on humidity? Run the test at a 5% level of significance. 1) the appropriate null and alternative hypotheses; 2) the appropriate test); 3) the decision rule. 4) the calculation of the test statistic. 5) your conclusion including a comparison to alpha or the critical value. What do the results mean?
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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