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19) A claim states that the average studying time of a university student is 20 hours for any course. To test the claim a random sample of 16 students were subject to test and found that these students spent an average of 18 hours with variance of 4 hours. Test the null hypothesis Ho: µ=20 against H1: µ<20 at 0.01 level of significance. Z <-Za Z18-2O A) Reject H, since -4<-2.33 2/NT6 B) Accept Ho since - 2>-2.33 C) Reject H, since - 4<-2.602| D) Accept Ho since - 2>-2.602

19) A claim states that the average studying time of a university student is 20 hours for any course. To test the claim a random sample of 16 students were subject to test and found that these students spent an average of 18 hours with variance of 4 hours. Test the null hypothesis Ho: µ=20 against H1: µ<20 at 0.01 level of significance. Z <-Za Z18-2O A) Reject H, since -4<-2.33 2/NT6 B) Accept Ho since - 2>-2.33 C) Reject H, since - 4<-2.602| D) Accept Ho since - 2>-2.602

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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question 19 please
cal 4.384 cal = 4.384 18) A career counselor claims that the average number of years of schooling for an engineer is 15.6 years. A sample of 35 engineers had a mean of 15 vears and a standard deviation of 1.5 years. Suppose we want to test Ho: µ=15.8 vs. H,:H<15.8 at a=0.01 ヘ>20 lcrge 文:1S i) What are the critical value(s)? ス-マ。う2<-2.3 S=1.5 A) 2.33 B) - 2.575 C) - 2.33 D) 2.575 ii) Calculate the appropriate test statistic? 2:X- - 3.155 -3.16 A) Zcal =-3.16 B) tcal =-0.53 C) Z cal =-0.53 D) tcal =-3,16 19) A claim states that the average studying time of a university student is 20 hours for any course. To test the claim a random sample of 16 students were subject to test and found that these students spent an average of 18 hours with variance of 4 hours. Test the null hypothesis Ho: µ=20 against H1: µ< 20 at 0.01 level of significance. Z <-Za フe18-20 -4 A) Reject H since -4<-2.33 2/VT6 B) Accept Ho since - 2>-2.33 C) Reject H, since -4<-2.602 D) Accept Ho since - 2>-2.602 20) A claim states that the average studying time of a university student is 20 hours for any course. To test the claim a random sample of 25 students were subject to test and found that these students spent an average of 22 hours with standard deviation of 9 hours. Test the null hypothesis Ho :µ=20 against H1: µ>20 at 0.05 level of significance. A) Accept H, since 1.111<1.645 sinco 5 6>1 711 B) Accept Ho since 1.111<1.711 D) Reject H, since 5.6>1.645 C) Reiect H
Transcribed Image Text:cal 4.384 cal = 4.384 18) A career counselor claims that the average number of years of schooling for an engineer is 15.6 years. A sample of 35 engineers had a mean of 15 vears and a standard deviation of 1.5 years. Suppose we want to test Ho: µ=15.8 vs. H,:H<15.8 at a=0.01 ヘ>20 lcrge 文:1S i) What are the critical value(s)? ス-マ。う2<-2.3 S=1.5 A) 2.33 B) - 2.575 C) - 2.33 D) 2.575 ii) Calculate the appropriate test statistic? 2:X- - 3.155 -3.16 A) Zcal =-3.16 B) tcal =-0.53 C) Z cal =-0.53 D) tcal =-3,16 19) A claim states that the average studying time of a university student is 20 hours for any course. To test the claim a random sample of 16 students were subject to test and found that these students spent an average of 18 hours with variance of 4 hours. Test the null hypothesis Ho: µ=20 against H1: µ< 20 at 0.01 level of significance. Z <-Za フe18-20 -4 A) Reject H since -4<-2.33 2/VT6 B) Accept Ho since - 2>-2.33 C) Reject H, since -4<-2.602 D) Accept Ho since - 2>-2.602 20) A claim states that the average studying time of a university student is 20 hours for any course. To test the claim a random sample of 25 students were subject to test and found that these students spent an average of 22 hours with standard deviation of 9 hours. Test the null hypothesis Ho :µ=20 against H1: µ>20 at 0.05 level of significance. A) Accept H, since 1.111<1.645 sinco 5 6>1 711 B) Accept Ho since 1.111<1.711 D) Reject H, since 5.6>1.645 C) Reiect H
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