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A child's game includes a spinner with four colors on it. Each color is one quarter of the circle. You want to test the spinner to see if it is fair, so you decide to spin the spinner 50 times and count the number of blues. You do this and record 8 blues. Carry out a hypothesis test, carefully showing the four steps. Do it "by hand" (using R but not binom. Test ()). Then check your work using binom. test ().
Normally distributed with a=2.6inches, answer the following questions. What is the percentile rank of a 20 to 29 year old female who is 60 inches tall?
Remember our sample of pages in this book from the earlier Just Checking? 48% of pages had a data display. 27% of pages had an equation.
An ordinary (fair) die is a cube with the numbers1through6on the sides (represented by painted spots). Imagine that such a die is rolled twice in succession.
after a military campaign sample of 59 soldiers were examined it was determined that 32 of them suffered from lifetime
What proportion of children 10-15 years would be classified as hyperlipidemia(assume that hyperlipidemia is defined as a total cholesterol level over 200)?
Suppose that the probability of strong demand is 0.8 and the probability of weak demand is 0.2. What is the optimal decision using the expected value approach?
The company offers a warranty of 1 year for the product. What percentage of the product sold by the company will need warranty service (that is, it will last less than 1 year)?
find an equation of the parabola that has the indicated vertex and whose graph passes through the given point. vertex
What is the difference between an experiment and an observation?
Find the sample size necessary to construct a 98% confidence interval for the true mean chlorophyll concentration with a bound on the error of estimation B = 0.5.
Explain the resulting lack of environmental service protection (or maintenance) as well as the undervaluing of these services as a public good problem.
Explain in your own words why the test statistic for Goodness-of-Fit is similar to the calculation for Population Standard Deviation.
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