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You have applied to be an intern at company Big and company Huge. The personnel directors at Big and Huge have told you that the probabilities of getting the positions at their companies are 0.3 and 0.5, respectively. You estimate that the probability of getting both jobs is only 0.1. What is the probability that you get exactly one of the jobs?
The sample mean of the sampling distribution of a statistic is 6 and the standard error of the statistic is 1.03. What is the probability that xbar > 7.52?
Given this information, what would sampling error be if sample including seven values in top row were used to calculate sample mean?
A pilot survey reveals that 5 of the 50 sampled hold two or more jobs. How many in the workforce should be interviewed to meet your requirements?
Given the above function, use the four-step process to find a slope predictor function m(x). Then write an equation for the line tangent to the curve at the point x = 8.
Carbon monoxide (CO) emissions for a certain kind of car vary mean 2.4 g/mi and standard deviation 0.7g/mi. A company has 60 of these cars in its fleet. Let y represent the mean CO level for the companies fleet. Estimate the probability that y is ..
In a research study, what does statistically significant mean? How are decisions made on data based on significance? What do you do with data that is not significantly different?
Compute the probability that debt for a randomly selected borrower with good credit is more than $18,000?
I performed a linear regression for the Population to the monthly profit, but do not understand how to use the information. And I do not understand the confidence interval estimate; how do I use and decipher the info.
Automatic sensors to watch for lightening in a sample of 10 square kilometers. What are the mean and standard deviation of x, the mean number of strikes per square kilometer?
The amount of time a bank teller spends with each customer has a population mean = 3.1 minutes and population standard deviation = 0.4 minute.
If the pairing is done at random, what is the probability that there are no white-black roommate pairs?
Fifty samples of size 600 were drawn from a manufacturing process and the number of defectives in each sample was counted.
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