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A charity receives 1700 contributions. Contributions are assumed to be independent and identically distributed with mean 2945 and standard deviation 150. Calculate the approximate 90th percentile for the distribution of the total contributions received.
What is the city mileage standard deviation for this SUV model?
Test the following claim about the difference between 2 populations proportions p1 and p2 for the given level of significance a and given sample statistic. Is it right-tailed, left-tailed, two-tailed. Assume the sample statistic are from independe..
At least half the patients are under 15 years old? First, explain how this can be modeled as a binomial distribution with 8 trials, where success is visitor age is under 15 years old and the probability of success is 20%.
a large industrial firm uses 3 local motels to provide overnight accommodations for its clients. from past experience
Use the Excel COUNTIF function to determine the number of tires that last longer than 40,000 miles. What is your estimate of the percentage of tires that will exceed 40,000 miles?
is the average run length performance of a control chart a more meaningful measure of performance than the type i and
correlation between the two variables.a store manager wishes to find out whether there is a relationship between the
The normal distribution witha population standard deviation of 8 seconds. Suppose we select a sample of 16 cuts from various CD's sold by CRA CD's Inc.?
the mean score on a physical fitness test for division i student-athletes is 947 with a standard deviation of 205. if
if a group of 4 were randomly selected from a group of 6 people 3 female3 males what is the probability the selected
In estimating a 95% confidence interval estimate of the average number of days absent for the company's workers last year should you use a z or t value in the formula?
Sketch and upload the density function for the random variable Y. Be sure to label your axes and provide values on the axes.
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