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Two pediatricians want to investigate a new laboratory test that identifies streptococcal infection. Dr. Kidd uses the standard culture test, which has a sensitivity of 90% and specificity of 96%. Dr. Childs uses the new test, which is 96% sensitive and 96% specific. If 200 patients undergo culture with both tests, who (Dr. Kidd or Dr. Childs) will identify more people with streptococcal infection? Explain.
a lot consisting of 150 fuses is inspected by the following procedure. five fuses are chosen at random and tested if
In the game of roulette, a metal ball is spun around a rotating wheel containing 18 red-numbered slots, 18 black-numbered slots
Do you believe that there are differences in average output among the five plants? What is the approximate p-value? Explain.
Using adjusted closing prices only, what was the Total Return for the stock for the year?
Post a behavioral research situation that could use a Pearson coefficient research study and a chi square research study. Present the rationale for each selection. Be very specific in your presentation
the amount spent on their first visit is approximately normal, what is the shape of the sampling distribution of the sample mean that will be used to create the desired confidence interval for μ?
Measurements of part dimensions that were formerly made by hand are now made by a very accurate laser system.
In an effort to speed up the customer service process, the company decides to streamline the series of pushbutton menus customers must navigate, cutting the time by 24 seconds. What will the median and IQR of the length of hotline calls become?
In a poll 468 out of 1593 people said that their next phone will be in android interpret days probability by estimating the percentage of all people
For these sample data, determine The mean, median, range, and midrange.- The mean absolute deviation.- The standard deviation and variance.
Compute the standard deviation, range and coefficient of variation from the data in the table for each bank - Draw a box and whisker plot for the annual dividen
Let the random variable X be the acceleration (in ft/s2) of the cab one second after the light changes. Is X discrete or continuous? Justify your answer.
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