A local supermarket sells cheddar cheese in 10-ounces packages. A consumer advocacy group suspects that these packages of cheddar cheese actually weigh less than 10 ounces. The group took a random sample of 20 such packages and found that the mean weight for the sample was 9.955 ounces. The population follows a normal distribution with the population standard deviation of 0.15 ounce. Use p-value approach to test the hypothesis with the alternative hypothesis that the mean weight of all such packages is less than 10 ounces using the significance level 0.01. a) state the null and the alternative hypothesis b) draw a distribution and show p-value on it. Find it. The p-value is: c) make a conclusion for the significance level a=0.01. does the sample information support the alternative hypothesis