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Consider a company that selects employees for random drug tests. The company uses a computer to randomly select employee numbers that range from 1 to 6296. Find the probability of selecting a number that is not divisible by 1000.
If a popcorn kernel is randomly selected, what is the probability that it takes between 130 seconds to 170 seconds for the kernel to pop?
Let = the sample mean of the 100 scores from University X, and = the sample mean of the 100 scores from University Y. What is the probability that will x be greater than y?
Suppose that 51% of the women who gave birth at a certain hospital last year were over 30 years old, and that 39% were unmarried.
Explain what the standard error of the mean represents and does the sampling distribution of x look like a Normal distribution if n is 10?
If a group of 400 school children are selected at random, what is the probability that at most 70 children will miss school because of asthma?
Suppose that a random sample of 14 cars shows an average speed of 24.0 mph, with a sample standard deviation of 2.2 mph. Assume that the speeds of cars are normally distributed. Using the T-table, what is the p-value?
R1 signifies the first Poisson event time after m (or 1 if there are no Poisson events in [m,1]), then it would be learned that marked position lies between L1 and R1.
a statiscal abstract includes the average per captia income for each of 15 states. when those 15 valuse are added then
Using realistic numbers for values of degrees of freedom, sample size, F-ratio, confidence interval and post hoc results; report hypothetical results in a few sentences using APA format.
A simple regression model has been developed using a sample of 11 pairs of observations. The sum of squares of error is 237.64. The standard error of the estimate is:
Determine the point estimate and 95% confidence interval for the mean family dental expenses of all employees of the company.
Find out a 95 percent confidence interval for population mean.
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