Two hundred patients with symptoms of asthma have received some treatment. the table below presents the distribution of self-reported reduction of the symptoms after receiving the treatments. The researcher wants to know whether the distribution after receiving treatments follows the hypothesized distribution, ie, 7.5% much worse, 22.5% worse, 40% no change, 22.5 better, and 7.5% much better (keep 2 decimal points) observation distribution of change in symptoms after receiving treatments Total Much worse Worse. No change. Better. Much Better 200. 22. 42. 77. 40. 19 a. The expected frequencies for much worse, worse, no change, better, and much better are____,___,____,___, and ____, respectively b. The calculated x^2 values for these changes in symptoms are___,___,___,___,___ c. The degree of freedom for this analysis is ____, and the critical x^2 at a=0.05 level is _____ d. If A= reject the null hypothesis that the distribution of change in symptoms after receiving treatments is the same as hypothesized and B= failing to reject the null, your choice is ____
Two hundred patients with symptoms of asthma have received some treatment. the table below presents the distribution of self-reported reduction of the symptoms after receiving the treatments. The researcher wants to know whether the distribution after receiving treatments follows the hypothesized distribution, ie, 7.5% much worse, 22.5% worse, 40% no change, 22.5 better, and 7.5% much better (keep 2 decimal points) observation distribution of change in symptoms after receiving treatments Total Much worse Worse. No change. Better. Much Better 200. 22. 42. 77. 40. 19 a. The expected frequencies for much worse, worse, no change, better, and much better are____,___,____,___, and ____, respectively b. The calculated x^2 values for these changes in symptoms are___,___,___,___,___ c. The degree of freedom for this analysis is ____, and the critical x^2 at a=0.05 level is _____ d. If A= reject the null hypothesis that the distribution of change in symptoms after receiving treatments is the same as hypothesized and B= failing to reject the null, your choice is ____
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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Two hundred patients with symptoms of asthma have received some treatment. the table below presents the distribution of self-reported reduction of the symptoms after receiving the treatments. The researcher wants to know whether the distribution after receiving treatments follows the hypothesized distribution, ie, 7.5% much worse, 22.5% worse, 40% no change, 22.5 better, and 7.5% much better (keep 2 decimal points)
observation distribution of change in symptoms after receiving treatments
Total Much worse Worse. No change. Better. Much Better
200. 22. 42. 77. 40. 19
a. The expected frequencies for much worse, worse, no change, better, and much better are____,___,____,___, and ____, respectively
b. The calculated x^2 values for these changes in symptoms are___,___,___,___,___
c. The degree of freedom for this analysis is ____, and the critical x^2 at a=0.05 level is _____
d. If A= reject the null hypothesis that the distribution of change in symptoms after receiving treatments is the same as hypothesized and B= failing to reject the null, your choice is _____
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