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Suppose a drug company wants test whether a new drug that it has been developed, Phantol, is more effective than its competitor drug, Virol. The company defines "more effective" as Phantol will provide relief to a greater proportion of its users than Virol. Let's suppose that it is known that 70% of users of Virol get some relief of symptoms when they use that drug. Suppose that, of a sample of 300 patients, 75% state that Phantol provided them with some relief from symptoms. Construct a 95% confidence interval for the true proportion, mean, of Phantol users who got relief from using the drug. Do you feel comfortable concluding that Phantol is better than Vitol? Explain clearly.
A manufacturer of dustless chalk instituted a quality control program to monitor chalk density. The sample standard deviations of densities for 24 different subgroups, each consisting of n = 8 chalk specimens, were as follows:
A study was done to determine whether there is a relationship between snoring and the risk of heart disease (Norton and Dunn, 1985).
1. Describe the work conditions the Ludlow Miners were faced with as well as the difficulties they were faced with, prior to going on strike
The test must be performed at the 5% level of significance. According to the null hypothesis, the value of the population mean is parts per million.
An experiment was performed to investigate lifetime of a component exposed to high heat. Three different oven types were used at either 550°F or 600°F.
a survey of 865 voters in one state reveals that 408 favor approval of an issue before the legislature. construct the
consider the following statement each culture has its own norms of etiquette. in a diverse society like america as well
Explain the basis for the cause of action, and analyze the merits of the cause of action, employer defenses, and likely outcome. Support your response with applicable law.
How can these three levels be used to evaluate risk to patients in implementing decisions based on research findings? a statistical significance of p
Calculate the probability of getting three tickets within a 12 month period for a driver who averages one speeding ticket every 18.6 months
(a) Identify the null hypothesis and alternative hypothesis. (b) Determine the test statistic. Show all work; writing the correct test statistic, without supporting work, will receive no credit. (c) Determine the P-value for this test. Show all wo..
suppose that a 2-year old boy named cahnce sits at a computer and types exactly 6 unique alphabet keys. what is the
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