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The weekly earnings of bus drivers are normally distributed with a mean of $395. If only 1.1% of the bus drivers have a weekly income of more than $429.35, what is the value of the standard deviation of the weekly earnings of the bus drivers?
Statistics and Probability, Statistics
The J.O. Supplies Company buys calculators from a Korean supplier. The probability of a defective calculator is 20%. If 15 calculators are selected at random, what is the probability that less than 5 of the calculators w ...
Two candidates face each other in an election. The Democratic candidate is supported by 58% of the population, and the Republican candidate is supported by 42%. In other words, if you randomly chose a voter and asked the ...
Consider random samples of size 800 from a population with proportion 0.60. (a) Find the mean and standard error of the distribution of sample proportions. Round your answer for the mean to two decimal places, and your ...
Assignment - A dashboard-type report for the case study. You may use Excel or Tableau. The data analysis should be improved from Assignment 1 based on the feedback received and further tools and techniques you learnt in ...
The number of people arriving for treatment at an emergency room can be modeled by a Poisson process with a mean of 7 people per hour. How many people do you expect to arrive during a 55-minute period?
(a) What is the purpose of credit analysis? Discuss the importance of performing a credit analysis if you are suppliers of credit (i.e., commercial banks, non-bank private financing entities).
Is it possible to have no (or very small) collinearity and correlation between variables, yet have the same R squared and Adjusted R squared values?
A bottle of water is supposed to have 12 ounces. The bottling company has determined that 98% of bottles have the correct amount. Which of the following describes a binomial experiment that would determine the probabilit ...
Average sales for an online textbook distributor were $74.67 per customer per purchase. Assume the sales are normally distributed. If the standard deviation of the amount spent on a textbooks is $9.49, find these probabi ...
Billy currently has $500 in an account that earns 12% APR, compounded monthly. Assuming he doesn't withdraw any of the funds, how much will his balance be in 6 years?
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