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as a report in runner's world magazine, the times of the finishers in the new york city 10 km run are normally distributed with mean 61 minutes and standard deviation 9 minutes part A) Determine the percentage of finishers with times between 50 and 70 minutes part B)Find the percentage of finishers with times less than 75 minutes part C)obtain and interpret the 40th percentile for the finishing times and part D) find and interpret the eighth decile for the finishing times.
Determine the rejection region for the hypothesis Ho : mean D= 0 if H a : mean D > 0. Use a = 0.01. z>
The thing about selling all of those drugs, devices, and solutions is that a lot can go wrong. Nearly every product that Baxter delivers is a matter of life and death.
A recent study was designed to compare smoking habits of young women with those of young men. A random sample of 150 women revealed that 45 of them smoked.
f no more than 5% of the containers are to weigh less than 15.8 oz, what must the standard deviation of the weights equal?
The probabilities .9 and .1 respectively. Give the probability distribution for daily sales. Find the mean and standard deviation of the daily sales.
If the people on your floor of the dorm bought 200 of those tickets, what is the probability that someone on your floor will hold the winning ticket?
Find the 99% confidence interval for the population proportion.
Need to find the value of the Test Statistic and calculate the mean squares for regression and error for the following:
What the information do z-scores give that actual heights do no?
Report descriptive statistics, assumptions tests, effect sizes (partial eta) as well as tests of statistical significance.
A computer password consists of four characters. The characters can be one of the 26 letters of the alphabet. Each character may be used more than once. How many different passwords are possible?
Given are five observations collected in a regretion study on two variables: What is the value of the standard error of the estimate?
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