For the situation described below, state which test you used and why, give the null and alternative hypothesis. Then, compute the test statistic, and determine the conclusion of the test. A pretzel...

For the situation described below, state which test you used and why, give the null and alternative hypothesis. Then, compute the test statistic, and determine the conclusion of the test. A pretzel company claims that its family-size bags of pretzels weigh an average of 12 ounces, with a standard deviation of 0.8 ounces. A group of customers decides to test this claim, believing the actual mean weight is lower. They buy a random sample of 50 family size bags of pretzels and find they have a mean weight of 11.8 ounces. Test the company’s claim with a 1% level of significance.