If the researcher decides to test this hypothesis at the α=0.05 level of​ significance, determine the critical value. Draw a​ chi-squared distribution and depict the critical region Will the researcher reject the null​ hypothesis? Why? Choose the correct answer below. A. Yes​,because χ20<χ20.95. B. No​, because χ20<χ20.95. C.No​, because χ20>χ20.95. D. Yes​, because χ20>χ20.95

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To test H0: σ=2.1versus H1: σ<2.1​, a random sample of size n=21 is obtained from a population that is known to be normally distributed.

If the sample standard deviation is determined to be s=1.9​, compute the test statistic. χ20

If the researcher decides to test this hypothesis at the α=0.05 level of​ significance, determine the critical value.

Draw a​ chi-squared distribution and depict the critical region

Will the researcher reject the null​ hypothesis? Why?

Choose the correct answer below.

A. Yes​,because χ20<χ20.95.

B. No​, because χ20<χ20.95.

C.No​, because χ20>χ20.95.

D. Yes​, because χ20>χ20.95

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