Santos Farm takes pride in its poultry produce and claims that each dressed chicken they sell provides 180 grams of protein. Test this claim at 0.01 level of significance based on a random sample of 70 dressed chickens that yielded an average of 176 grams of protein with sample standard deviation of 15 grams.

MLC claims that students who avail their services get an average score of 385 on scholastic aptitude test. The scores of random samples of 10 students were recorded as follows: 350, 440, 350, 375, 400, 450, 475, 320, 300, 375. Use the level of significance 0.01 to test whether the average of 385 is too high to claim.