4. For random variable X with unknown variance let S_x^2=49,x
?=8,n=25,"and" ?=0.10. Conduct the following tests....
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4. For random variable X with unknown variance let S_x^2=49,x?=8,n=25,"and" ?=0.10. Conduct the following tests. Make sure youstate the decision rule and the inference.
a) H_0:?<7H_A:??7
b) H_0:?>10H_A:??10
c) H_0:?=3H_A:??3
d) Give a 90% confidence interval around ?.
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a Below are the null and alternative Hypothesis Null Hypothesis 7 Alternative Hypothesis 7 Rejection Region This is right tailed test for 01 and df 24 Critical value of t is 1318 Hence reject H0 if t 1318 Test statistic t xbar mussqrtn t 8 79sqrt25 t
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