The manager of a grocery store has selected a random sample of 100 customers. The average length of time it took these 100 customers to check out was 3.0 minutes. It is known that the standard deviation of the checkout time is 1 minute. The 95 confidence interval for the average checkout time for all customers is _____.
a. 3 to 5
b. 1.36 to 4.64
c. 2.804 to 3.196
d. 1.04 to 4.96
Question 2
The starting salaries of individuals with an MBA degree are normally distributed with a mean of 40,000 and a standard deviation of 5,000 . What is the probability that a randomly selected individual with an MBA degree will get a starting salary of at least 47,500?
a. .4332
b. .9332
c. .0668
d. .5000
Examples of Impacts Associated with Different Amounts of Global Average Temperat
Parenting Styles Reported by a Representative Sample of American Adolescents
Sample tiered drug formulary for antibiotics.
Manager's Responsibilities to Employee and Physician-Employer
The average weight gain between Thanksgiving and New Year's Day is about a pound
Use a graphical method to find the length of the loan to the nearest year