Question
chapter 7.5 1.Find the criticalvalue(s) and rejectionregion(s) for aright-tailed chi-square test with a sample size n=16 and level of significance =0.10. Find the criticalvalue(s). 2.Find
chapter 7.5
1.Find the criticalvalue(s) and rejectionregion(s) for aright-tailed chi-square test with a sample size n=16 and level of significance =0.10.
Find the criticalvalue(s).
2.Find the criticalvalue(s) and rejectionregion(s) for aleft-tailed chi-square test with a sample size n=13 and level of significance =0.05.
Find the criticalvalue(s).
3.Find the criticalvalue(s) and rejectionregion(s) for atwo-tailed chi-square test with a sample size n=19 and level of significance =0.05.
Find the criticalvalue(s).
4.Test the claim about the population variance 2 at the level of significance . Assume the population is normally distributed.
Claim: 215.9; =0.10
Samplestatistics: s2= 29.65, n= 51
Write the null and alternative hypotheses.
5.Use a 0.05 significance level to test the claim that peanut candies have weights that vary more than plain candies. The standard deviation for the weights of plain candies is 0.152. A sample of 41 peanut candies has weights with a standard deviation of 0.34. Assume the population is normally distributed.
(a) Write the claim mathematically and identify H0 and Ha.
A.
H0:0.152 (Claim); Ha:<0.152
B.
H0:=0.152; Ha:0.152 (Claim)
C.
H0:0.152; Ha:>0.152 (Claim)
6.A hospital spokesperson claims that the standard deviation of the waiting times experienced by patients in its minor emergency department is no more than 0.5 minutes. A random sample of 29 waiting times has a standard deviation of 0.8 minutes. At =0.10, is there enough evidence to reject thespokesperson's claim? Assume the population is normally distributed. Complete parts(a) through(e) below.
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Click the icon to view theChi-Square Distribution Table.
(a) Write the claim mathematically and identify H0 and Ha.
A.
H0:0.5 (Claim); Ha:>0.5
B.
H0:0.5; Ha:<0.5 (Claim)
C.
H0:<0.5 (Claim); Ha0.5
D.
H0:=0.5; Ha:0.5 (Claim)
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