In a group of 60 statistics students, 31 sleep on their sides, 20 sleep on their stomachs, and 9 sleep on their backs You select 7 statistics students at random, with replacement. What is the probability that exactly 3 sleep on their backs? Hint: It is probably easiest to use Minitab or Geogebra to solve this. A P(x=3) = 0.003375 B P(x=3) = 0.0000017 P(x=3) = 0.15 P(x=3) = 0.061662

Use excel to do all calculations. Please show all work.

A company conducted a marketing survey of college students and found that 191 own a bicycle and 74 owned a car. If 18 of those surveyed own both a car and a bicycle, how many interviewed have a car or a bicycle? preview answers

You land a job at an online marketing/consulting firm after attaining a business degree with an emphasis in statistics. You walk into your office on the first day and there is an assignment sitting upon your desk. The firm was recently hired by ImpulseBuy Now.com (a famous online clearing house for as-seen-on-TV junk items). ImpulseBuyNow wanted to know if the amount of time spent browsing by a customer at their online site associates to how many items the customer purchased. Sound familiar? Realizing that you listed a statistical emphasis in your business degree, you panic and pull out your old statistics notes as to find this unit in the study guide. What luck! You must figure out what to tell ImpulseBuy Now about their question. Here is the data provided by ImpulseBuy Now: Browse Time (min.) 0-10 11-20 More than 20 Browse Time (min.) 0-10 Items Purchased Zero 1000 And your final p-value is extremely small. 1500 500 One 900 Expected Values Zero 600 2600 2500 Your paycheck depends…