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1. An experiment compares yields for six different types of alfalfa. Each type was planted in four different plots. The partial ANOVA table is
The F statistic for the ANOVA test isA. 0.94.B. 4.32.C. 56.23.
2. An experiment compares yields for six different types of alfalfa. Each type was planted in four different plots. The Minitab output for the Tukey Least Significant Difference multiple comparisons is below. Which means are different and similar?
A. 6 is different from the rest, 4 is different from all the others, the other 4 are similar.B. Only type 6 is different from the rest.C. 4 and 6 are similar to each other and the other 4 are similar to each other.
A random sample of 100 students who took a statistics exam were asked their score on the exam. The mean score on the test was 50; the standard deviation was 10. The scores are normally distributed.
What about a variable I intend to use to help do some forecasting. Interest rates, for example, will have an effect on the number of houses purchased --- may I call interest rate the independent variable and number of houses purchased the dependent v..
LSAT scores are normally distributed, with a mean of 150 and s = 10.
Select the variable team salary and find the mean, median, and the standard deviation
Use the central limit theorem to find the probability that the average number of moths in 30 traps is greater than 0.6. Give your answer to four decimal places.
In Gallup polls taken at different times, subjects were asked if they owned a gun, and the number of yes responses was recorded for each time period. Is this discrete or continuous? why?
Medical schools last year intended to specialize in family practice. What is the width of a 90% confidence interval for the proportion that plan to specialize in family practice.
Calculate 95% and 99% confidence intervals for m. Using the 95% confidence intervals, can we be 95% confident that m is a least 50 pounds? Explain.
What is the value of the population mean? What is the best estimate of this value?
Although there is a popular belief that herbal remedies such as ginkgo biloba and ginseng may improve learning and memory in healthy adults, these effects are usually not supported by well-controlled research.
Suppose we drew a histogram of these 18 death rates using class intervals 1 — 1.9, 2 — 2.9, 3 — 3.9, 4 — 4.9 and 5 — 5.9. Using the histogram, we would
Standard deviation of 1.4 inches. What is the probability that the average length of a steel from a sample of 36 is more than 27.65inches long?
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