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o test H0:σ=1.2 versus H1: σ≠1.2, a random sample of size n=22 is obtained from a...

o test H0:σ=1.2 versus H1: σ≠1.2, a random sample of size n=22 is obtained from a population that is known to be normally distributed.


(a) If the sample standard deviation is determined to be s=0.8, compute the test statistic.

(b) If the researcher decides to test this hypothesis at the α=0.10 level of significance, determine the critical values.

(c) Will the researcher reject the null hypothesis? Why?

that's all the question stated

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