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What is the difference between primary and secondary market data? What are the advantages and disadvantages of each?
Statistics and Probability, Statistics
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The probability that someone made a purchase at a store is 0.36. You randomly select 15 people who went to the store. The random variable x represents the number of people who made a purchase. a. Find the probability tha ...
A? government's department of transportation reported that in? 2009, airline A led all domestic airlines in? on-time arrivals for domestic? flights, with a rate of 83?%. Complete parts a through e below. a. What is the p ...
A log yard uses 3 digit numbers to identify their current stock: a) How many 3 digit numbers can be formed from the digits 0, 1, 2, 3, 4 and 5 if each digit can be used only once and the number cannot begin with 0? b) Wh ...
Find the probability and explain the results please. The population mean annual salary for environmental compliance specialists is about ?$60,500. A random sample of 33 specialists is drawn from this population. What is ...
A lumber grading system is known to be defective 20% of the time. Normally, 20% of the lumber that passes through is rejected, but when it is defective, 50% of the pieces are rejected. In either case, pieces that are acc ...
Given a trend line of y = 174x + 88, where the variable x is the independent variable and the variable y is the dependent variable, what is the slope of this trend line?
Assume that showing a car is a Bernoulli trial, and each time she shows a car, there is a probability of 0.15 that the customer will buy the car. The saleswoman has a goal of selling at least one car a week. 1) How many ...
The British Department of Transportation studied to see if people avoid driving on Friday the 13th. They did a traffic count on a Friday and then again on a Friday the 13that the same two locations ("Friday the 13th," 20 ...
A sample of 100 randomly selected students found that the proportion of students planning to travel home for Thanksgiving is 0.68. What is the Standard Deviation of the sampling distribution?
A mental health treatment center wanted to compare group therapy vs. individual therapy. They are interested in the relationship between treatment type (group, individual) and treatment completion (yes/no). What type of ...
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