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What is the value of the test statistic?

label Statistics
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A sample of 49 observations is selected from a normal population. The sample mean is 61, and the population standard deviation is 6. Conduct the following test of hypothesis using the 0.10 significance level.

 

H0μ = 63
H1μ ≠ 63
Apr 8th, 2015

t = (61-63)/(6/7) = -2*7/6 = -7/3 = -2.333

Tabular value for 1% (two tailed) is 1.6772 for 48 df

| t | =2.333 > 1.6772 

we reject the null hypothesis.

And conclude that mean is not equal to 63



Apr 8th, 2015

How about this question What is the p-value?

Apr 8th, 2015

OK .

P( |t| >2.333) = 0.0239

p value =0.0239

since 0.1 >0.0239 or 0.0239 <0.1 we reject the null hypothesis.

Apr 8th, 2015

p value =0.0239 it says wrong 

Apr 8th, 2015

p value =0.0239 it says wrong 

Apr 8th, 2015

p value =0.0239 it says wrong 

Apr 8th, 2015

Hello 

Apr 8th, 2015

Hello 

Apr 8th, 2015

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