# Week2Assignmentpdf.pdf - BST 322 Week 2 Assignment Week 2...

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BST 322 Week 2 Assignment Week 2 Assignment 1. ( 1 pt) What is the probability of rolling a four with a six sided die?
What is the probability that a person can roll a four 3 times in a row? (assume that rolling the die each time does not affect the outcome of the next roll)
2. ( 1 pt) Population A and Population B both have a mean height of 70.0 inches with an SD of 6.0. random sample of 50 people is picked from population A, and random sample of 20 people is se- lected from Population B. Which sample mean will probably yield a more accurate estimate of its population mean? Why? A
3. ( 1 pt) Suppose we obtained data on vein size after application of a nitroglycerin ointment in a sample of 50 patients. The mean vein size is found to be 4.7mm with an SD of 1.1. Using a t dis- tribution table and/or StatCrunch, what are the confidence limits for a 95% confidence interval?
For a 99% confidence interval?