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20th percentile of the heights of a group of women is 60 inches and the 75th percentile is 65.8 inches. The histogram follows the normal curve. Find the 90th percentile.
The National Institute of Mental Health published an article stating that in any one-year period, approximately 9.5 percent of American adults suffer from depression or a depressive illness. Suppose that in a survey of 100 people in a certain town, s..
What is the mean and standard deviation (SD) for preoperative T score for CVLT Acquisition - distribution of scores for the postoperative CVLT Retrieval T scores is normal, the middle 68% of the patients had T scores between what two values?
What is your linear speed in feet per minute
Sixty baseball scores from recent games played by the San Francisco (SF) Giants were recorded. The histogram below represents the 60 differences between the score of the SF Giants and their opponents. Each difference was computed by subtracting the o..
The manufacturer of beer kegs claims that 95% of the kegs they produce do not leak after 5 years of use. A bar owner tests the manufacturers claim at the 0.05 significance level. She takes a sample of 200 kegs and finds 185 do not leak. Wha..
Examine the skewness and kurtosis values for each dependent variable, examining the histograms and examine the Shapiro-Wilks' results and What is the outcome of the multivariate tests
1. if the mean number of hours of television watched by teenagers per week is 12 with a standard deviation of 2 hours
Example the difference between graphs
Customers arrive at an automated coffee vending machine at a rate of 3 per minute, following a Poisson distribution. The coffee machine dispenses a cup of coffee in exactly 15 seconds.a. What is the average number of people waiting in line?
Collect data about hair salons clients vs. walk In's and product vs. services. Explain how you obtained a suitable sample of either qualitative or quantitative data. Review data for validity and reliability. Use descriptive statistics to summarize da..
Consider 2 mugs. THe first contains 2 white and 7 black balls, and the second contains 5 white and 6 black balls. We flip a fair coin and then draw a ball from the first mug or the second mug depending on whether the outcome was heads or tails. What ..
A bank branch located in a residential area has developed an improved process for serving customers during noon to 1:00 P.M lunch period. The waiting time in minutes (defined as time the customer enters the line to time he or she reaches the teller w..
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