question archive To test Upper H0?: μ=60 versus Upper H1: μ<60, a random sample of size n=23 is obtained from a population that is known to be normally distributed
Subject:MathPrice: Bought3
is obtained from a population that is known to be normally distributed.
?(a) If x=57.4 and s =13.6?, compute the test statistic.
(b) If the researcher decides to test this hypothesis at the a =0.05 level of? significance, determine the critical? value(s). Although technology or a? t-distribution table can be used to find the critical? value, in this problem use the? t-distribution table given.
Critical? Value: