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A clinician is conducted comparing a new pain reliever for arthritis to a placebo. Participants are randomly assigned to receive the new treatment or a placebo, and the outcomes is pain relief within 30 minutes. The data are shown table 7-8. Is there a significant difference in the proportion of patients reporting pain relief? Run the test at 5% level of significance.
Pain Relief No Pain Relief
New Medication 44 76
Placebo 21 96
Because the President officiates at this event , the secret service makes calculations which they use in planning security.
Suppose Alice flips three fair coins, and let X be the number of heads showing. Suppose Barbara flips five fair coins, and let Y be the number of heads showing.
Identify the types of variables you would need to conduct a Chi-square (last name begins with A-H), one-sample t-test (last name begins with I-P) and paired t-test (last name begins with Q-Z.
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The Starbucks in the Bauer College of Business found that 24% of customers purchase more than one cup of coffee per day from their shop. If 180 customers are randomly selected one day, what is the probability that no less than 25% of them purchase..
A health care professional wants to determine whether individuals with hypertension who eat high fat diets have significantly higher
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