Determine the (a) null and alternative hypothesis of the folbwing; fb) compute for the test statistic t; and (c) state a conclusion for the following.

1. A simple random sample of 50 adults is obtained, and each person's red bbod cell count cells per microliter) is measured. The sample mean is 5.23 and the sample standard deviation for red blood cell counts is 0.54. Use a 0.01 significance level to test the claim that the sample is from a population with a mean less than 5.4, which is a value often used for the upper limit of the range of normal values.

2. A simple random sample of the weights of 19 green M&Ms has a mean of 0.8635 g. Assume that s is known to be 0.0565 g. Use a O.. significance level to test the claim that the mean weight of all green M&Ms is equal to 0.8535 g, which is the mean weight requir. so that M&Ms have the weight printed on the package label.