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Question 1: X is normally distributed with a mean of 250 and a standard deviation of 40. What value of X does only the top 15% exceed?
Question 2: Travelbyus is an Internet-based travel agency wherein customers can see videos of the cities they plan to visit. The number of hits daily is a normally distributed random variable with mean of 10,000 and a standard deviation of 2,400:
a) What is the probability of getting more than 12,000 hits?
b) What is the probability of getting fewer than 9,000 hits?
Based off the three requirements that must be met before an analysis of variance test (ANOVA) can be used: Samples must be randomly selected from the populations to be evaluated.
Parents collected a simple random sample of the times that 81 college students required to earn their bachelor's degrees. The sample has a mean of 4.8 years and a standard deviation of 2.2 years. Use a 0.05 significance level to test the claim tha..
Determine the probability mass function of the salesperson's November sales (in $). What is the probabiity that his sales for November will be less than 100k? Find the mean and standard deviation of the November sales.
1.a restaurant monitors its customers complaints. here are the percent of customers with the following complaintswith
Construct an appropriate control chart and comment on the process.
Labor negotiations estimate that 30 percent of all major contract negotiations result in a strike. During the next year, 12 major contracts must be negotiated. Determine the following probabilities.
Draw a tree diagram representing this experiment. Use this tree diagram to find the probabilities below.
1.one characteristic of billiard balls is their elasticity - the bounce they get when striking one another. a
A jar contains 12 marbles, 5 of which are blue and 7 of which are red. If 4 marbles are chosen at random and without replacement, what is the probability of selecting 3 blue ones and 1 red one?
For a large group of overseas passengers, the mean is 78 pounds and the standard deviation is 15 pounds. compute the relative dispersion of each group.
You are having a meeting with the employees of Financial Outsourcing, Inc. During the meeting, you were asked several questions. Give your opinion to the questions.
Kay Manning is a sales manager with two salespeople working for her. The ability of each salesperson to secure new accounts has historically been: Jesse Burkett can generate 4 new accounts per 10 visits to prospects
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