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The following table was presented in an article summarizing a study to compare a new drug to a standard drug and to a placebo
Which, if any baseline characteristics are significantly different (at the 0.05 level of significance) between treatment groups
A) Disease stage
B) Annual income
C) Percentage with insurance
D) Age
E) A& C
F) B& D
Characteristic New drug Standard drug Placebo P
Age, Years 45.2(4.8) 44.9(5.1) 42.8 (4.3) 0.5746
% Female 51% 55% 57% 0.1635
Annual income, $0005 59.5(14.3) 63.8(16.9) 58.2(13.6) 0.4635
% with insurance 87% 65% 82% 0.0352
Disease Stage
Stage 1 35% 18% 33%
Stage 11 42% 37% 47%
Stage 111 23% 51% 20%
Develop null and alternative hypotheses to help the bank determine which option would provide the best incentive to consumers.
In studies examining the effect of humour on interpersonal attraction, McGee and Shevlin (2009) found that an individual's sense of humor had a significant effect on how the individual was perceived by others.
At the 0.01 significance level, is there a difference in the mean number of times men and women order takeout dinners in a month? Calculation of the p-value is not required.
In the year 2000, the state of Indiana began a $40-million renovation of its state fairgrounds, which included the building of a miniature golf course and a state-of-the-art livestock building.
What is the probability for the given frequency distribution?
At = .05, does the Atlanta sample support the conclusion that above-average rates exist for this private water system? Can you conclude that above-average rates exist for this private water system?
Assume independent events. Why might the assumption of independence be violated? (b) Why might a driver be tempted not to use a seat belt "just on this trip"?
A sample of 60 night shift workers showed that the mean number of units produced was 351. At the .05 significance level, is the number of units produced on the night shift larger?
Consider the following estimated regression equation, based on 10 observations.
Finds the standard deviation of the time to prepare, copy and mail their tax return is 80 minutes. What is the standard error of the mean in this example?
Calculate the average hours of sleep per night for each sample. According to the 95 part of the 68-95-99.7 rule, 95% of all values of fall within __________ on either side of the unknown mean . What is the missing number?
In studying satisfaction patients have with an operation I have 2 random groups each given a different questionaire. I want to compare the responses of each group and see if the differen
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