Claim: mu does not equal 7000; alpha equals 0.03; sigma equals 382. Sample statistics: x overbarequals...
Claim: mu does not equal 7000; alpha equals 0.03; sigma equals 382. Sample statistics: x overbarequals 6800, n equals 46 what is the critical value, or the critical value(s)?
Homework Answers
Solution :
This is the two tailed test .
The null and alternative hypothesis is ,
H0 : 
= 7000
Ha :
7000
= 6800
= 7000
= 382
n = 46
= 0.03
/ 2 = 0.03 / 2 = 0.015
Z/2
= Z0.015 = 
2.17
Critical value : -2.17 and +2.17
P-value <
Reject the null hypothesis .
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