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Express the null hypothesis and the alternative hypothesis in symbolic form. The principal of a middle school claims that test scores of the seventh-graders at her school vary less than the test scores of seventh-graders at a neighboring school, which have variation described by σ = 14.7
Use information given by the applet to explain whether or not the Empirical Rule applies for Ideal Height.- Assuming the Empirical Rule applies, give numerical values for the interval that will contain about 99.7% of the data values.
Identify the response variable for this study.- How many treatments are included in this study? Describe them.- If the MST = 11.280, what is the approximate p-value of the test of part a?
Whether you use Microsoft Word or WordPerfect, save your document as .rtf (rich text format). Doing so ensures I will be able to open and read your document.
a pair of fair six-sided dice are tossed independently of each other.a list the sample space of this experiment.b
About 40% of the general population donate time and energy to community projects. Suppose 15 people have been randomly selected from a community and each asked whether he or she donates time and energy to community projects.
on a recent prostate cancer screening test bobo received positive results. it is known that this type screening test
He wonders if this evidence contradicts his belief in a uniform distribution of miles across the days of the week. Explain why it is not appropriate to test his hypothesis using the chi-square goodness-of-fit χ2 test.
For a particular species of a flower, 40 percent have smooth leaves and 60 percent have hairy leaves. Suppose that you randomly pick 15 flowers of this species.
someone is going to play roulette 270 times betting a dollar on a split each time. a split pays 17 to 1. find the
in a one-factor anova with n17 n26 n35 n45 and n57 the sample standard deviations were s1 12 s2 24 s3 16 s4 46 s5
a -0.947 correlation coefficient has been found between two variables after examining 43 pairs of observations. what
Provided an example of a research problem at any organization that would benefit from the employ of either descriptive statistics or probability distribution statistics.
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