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If the mean is 500 and the hypothesized mean is 450, the SD =300 and n =5.using 0.05 level of significance the

hypothetical value is_______.(the same number value go for question 38-40)

a. not accepted

b. accepted

c.maybe accepted

d.may not be accepted

The 95%confidence interval of an upper limit of the sample mean is ____

a.872.44

b.822.3

c.785.6

d.955.6

The 95% lower limit of the confidence interval of a sample is ____

a.244.5

b.127.56

c.

d.

You have the data 72,84,95,77,89,70,83.The standard error is ____

a.3.622

b.2.734

c.5.843

d.3.415

you have the data set 72,84,95,77,89,70,83.the skewness is_____

a.0.1213

b.0.2455

c.0.1422

d.0.3821

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