Testing:Но: р < 48.2H1:µ > 48.2Your sample consists of 23 values, with a sample mean of 49.6. Suppose the population standard deviationis known to be 2.99.a) Calculate the value of the test statistic, rounded to 2 decimal places.= Zb) At a = 0.03, the rejection region isO z < -1.88O z > 1.88Oz < -2.17 or z > 2.17z < -2.17z < -1.88 or z > 1.88z > 2.17c) The decision is toAccept the alternative hypotheisO Fail to reject the null hypothesisReject the null hypothesisO Accept the null hypothesisd) Suppose you mistakenly rejected the null hypothesis in this problem, what type of error is that?O Type IТуре II

As per our guidelines we are supposed to answer only 3 sub-parts of any question so I am solving…

Testing: Ho:µ < 48.2 H1: µ > 48.2 Your sample consists of 23 values, with a sample mean of 49.6. Suppose the population standard deviation is known to be 2.99. a) Calculate the value of the test statistic, rounded to 2 decimal places. b) At a = 0.03, the rejection region is O z < -1.88 O z > 1.88 O z < -2.17 or z > 2.17 z < -2.17 O z < -1.88 or z > 1.88 O z > 2.17 c) The decision is to Accept the alternative hypotheis O Fail to reject the null hypothesis O Reject the null hypothesis O Accept the null hypothesis