Question: To test Upper H0: e= 20 versus Upper H 1: < 20 , a simple random sample of size n= 19 is obtained from a

To test Upper H0: e=20 versus Upper H 1: <20, a simple random sample of size n=19 is obtained from a population that is known to be normally distributed.

(a) If x=18.4 and s=4.1, compute the test statistic.

t=___

(Round to two decimal places as needed.)

if I was to test the hypothesis at the =0.01 level of significance, what are the critical values? Would I reject the null hypotheses?

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