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1. A normal distribution Y has mean 50 and standard deviation 8. Find P(Y<44).
2. A normal distribution Y has mean 50 and standard deviation 8 find P(40<Y<60).
3. A normal distribution Y has mean 50 asd standard deviation 8 find P (30<T<62).
4. The response time for Denver police to respond to emergency calls is 8.4 minutes with a standard deviation 1.7 find the probability that the response time for a call between 5 and 10 minutes.
Make up a scatter diagram with 10 dots for each of the following:
Provide a brief description of the main features of these data from the scatter plot and Describe why you would use performance as the predictor variable and performane related pay as the dependent variable in such a model.
Use a calculator with mean and standard deviation keys to verify that the sample mean is x = 5.63 pups with the sample standard deviation s = 1.78 pups. (b) Find a 75% confidence interval for the population.
Based on this sample information find out what percent of variation in starting salaries is described by GPA, and find out the equation that would forecast salary from GPA. Give a scatter plot.
When using the distribution of sample means to estimate the population mean, what is the benefit of using larger sample sizes?
Find out 90% confidence interval for the population average µ of the percentage of hospitals providing at least some charity care.
A customer from Cavallaro's Fruit Stand picks a sample of 5 oranges at random from a crate containing 80 oranges, of which 6 are rotten. What is the probability that the sample contains 1 or more rotten oranges? (Round your answer to three decimal..
Given that the student you choose is a senior, find out the probability of selecting a non-senior?
Produce a printout of the frequency tables, showing the total of both frequencies.
FBI Report do greater universities that tend to have more property crime. Keep a scatter diagram also sketch the line you think best fits the data.
Find the standard error of the difference in sample means,
Determine the test value? Use α = 0.05. (Use the variances unequal formula).
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