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Runner's World reports that the time of the finishers in the New York City 10-km run are normally distributed with a mean of 61 minutes and a standard deviation of 9 minutes. Find the proportion of runners who take more than 70 minutes to finish. Draw a sketch to show this proportion.
The camera department of a large department store sells three different brands of cameras: Proxima, Yakima, and Tetron. Approximately 60% of the cameras sold are Yakimas with Tetrons accounting for 30% of sales and Proxima the remaining 10%.
For each problem, compute a Welch F-statistic and determine whether or not significant differences exist among the treatment conditions.
You are asked to estimate the chance that the sum will be positive.
What does a confidence interval tell us and why is it importance to use a confidence interval?
Describe what you find then produce an ANOVA for the problem.
Both days have sample standard deviations of 3.4. Is the average mean of size different from day 1 to day 2?
what is the equation that predicts mortgage amount from interest rate? Compute the slope of the straight line. compute the y-intercept of the straight line.
You roll two fair dice, one red and one green. What is the probability of getting a number less than 5 on both?
The number of students that enroll in a psychology course is a poisson random variable with mean 100.the course incharge has decided that if the enrolling is 120 or more he will teach the course in two separate sections.
Make a depreciation schedule. A $1,200 postage printing system depreciated using the straight-line method over 4 years.
Let x equal the number of cells activating the alarm when the temperature reaches 100F. Find the expected value and the variance for the random variable x.
Conduct an analysis of four management journal articles, at least two of which must be peer reviewed. The following must be included in my analysis:
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