' \"it's? ~ in Statistics 7.4 Worksheet B \"'1 Problems 1-7, you decide to survey students at a college about how many cups of coffee they drink per day. To do this, you randomly select 4 students per day, on 5 different days, for a total of 5 samples "5" of size n = 4. For each sample below, calculate the sample mean 7(- 1- 51:3,2, 1,3 2. 52:4,4,1,2 3- S;=4,1,0,1 msghgrlg; I'Duck' Unitagmgnslaih 4. $4 = 2, 1, 1, 3 5. $5 = 5, 1, 0, 2 6. Calculate the "mean ofthe sample means" 1.1,. 7. For the sampling distribution, does the Central Limit Theorem apply? Why or why not? 8. You survey 10 groups of 30 people each on their annual income, and nd that the mean salary is p. = $58,900, and the standard deviation is $15,900. (3) Find the mean u: of the sampling distribution. (b) Find the standard error of the mean. :I I um "I \"\"1\".\" 'wI-MH ill -r|