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A side effect of a certain anesthetic used in surgery is the hiccups, which occurs in about 10 percent of the cases. If three patients are scheduled for surgery today and are to be administered this anesthetic, compute the probability that:
a. three get hiccups
b. none get hiccups
c. at least one gets hiccups
Determine critical value if alpha = 0.05? If p-value for this test is 0.025, this p-value means?
Using Analysis of Variance (ANOVA) test at 5% level if there are important differences in mean sales calls made across the three branches.
Projection are form the U.S. National Center for Education Statistics>. Create a multiple bar graph of data, and then explain any trends.
In healthy adults, x is approximately normally distributed with mean µ = 38 and standard deviation σ = 12. What is the probability that:
If the voice identifications were made by random guess, find the probability that all 9 victims would select the same person?
Construction of histogram and pie chart for continuous data
A regional director responsible for business development in the state of pennsylvania is cocerned about the number of small business failures. If the mean of small businsses failures per month is 10,
Here are the shopping times (in minutes) for a sample of shoppers at a particular shoe store: 25, 38, 34, 41, 37 and find the standard deviation of this sample of shopping times. Round your answer to at least two decimal places.
When is it important to have matched pairs rather than two independent sets of data?
In terms of measures of association, how is Lambda different from the other measures used for nominal level data?
36 values given here are based on summary statistics from research by cumming. Do you think that these data are normally distributed?
In a certain city, there are 100,000 persons age 18 to 24. A simple random sample of 500 such persons is drawn, of whom 198 turn out to be currently enrolled in college.
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