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Amusing 20 participants to study whether a new drug is more effective than the current drug in the treatment of schizophrenia before they mass produce the new drug. Use a t-test.
Step 1: State the hypothesis.
Step 2: Collect the data – For the purpose of this discussion, you will state how you would collect the data.
Step 3: Calculate statistics – For the purpose of this discussion, you will indicate the statistics you would use.
Step 4: Compare to a critical value – For the purpose of this discussion, you will indicate where you would set the alpha value and why. Note: Step 4 is hypothetical as you are not actually conducting a statistical analysis. Consequently, you will choose if the results of your hypothetical analysis are above or below the critical value.
Step 5: Make a decision – For the purpose of this discussion, you will make a conclusion based on the hypothetical results from Step 4. Be sure to include a recommendation on the effectiveness of the new drug based on the results.
If two voters are randomly selected for a telephone survey, what is the probability that the first one is a Democrat followed by a Republican?
In his wardrobe at home, a businessman has 7 suits and 8 ties. From those suits and ties he has on hand, he plans to take 3 of the 7 suits and 2 of the 8 ties with him to a conference in San Francisco.
The probability of selecting each of the roads are the same. It is 1/3. If the prisoner succeeds on her escape, what is the probability that she made good on her escape by using road b.
At the 5% significance level, can the researcher reject the hypothesis that the mean reading scores of all children in the three school systems is the same? Formulate and test the appropriate hypotheses. Use the critical value approach.
Is your sample of MSU students significantly different from the population of MSU students in terms of the number of classes they take per semester (use alpha level .05)? To answer this question, follow all of your steps for hypothesis testing.
An insurance representative wants to determine if the proportions of women and men who buy the different policy types are the same. The actual sales results for 50 women and 50 men are
A jar contains black and white marbles. Two marbles are chosen without replacement. If the probability of selecting a black marble and a white marble is 0.34, and the probability of selecting a black marble on the first draw is 0.47,
Suppose that 30% of the population has black hair. In a randomly-selected group of six people, how probable is it that
A standard deviation of 1.9 pounds. What is the 95 percent confidence interval for the true mean weight, u, of all packages received by the parcel service?
What fraction of the calls last between 4.2 and 5 minutes?
A. Determine the regression equation. B. Determine the estimated sales if 40 contacts are made.
Determine the most economical monthly shipping schedule. Provide a table showing the routes and total costs.
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