Mathematics, 23.05.2020 07:02 hall7948
A new drug claims to reduce the number of migraines an individual suffers. In a study on the effectiveness of the new drug, 50 subjects were given the new drug and another 50 subjects were given a placebo. At the end of the 6-month study, the group given the new drug reported an average of 1.3 migraines a week. The group given the placebo reported an average of 2.5 migraines a week. The data from the study are rerandomized 10 times. The difference of the means from rerandomization are 1.2, 3.4, 1.8, 1.3, 1.1, 0.9, 2.5, 0.7, 1.1, and 0.9. What is the most appropriate conclusion about the new drug to draw from this information? The new drug appears to reduce the number of migraines since the rerandomized mean differences are close to the mean difference found between the two groups studied. The new drug appears to reduce the number of migraines since the rerandomized mean differences are considerably less than the mean difference found between the two groups studied. The new drug does not appear to reduce the number of migraines since the rerandomized mean differences are close to the mean difference found between the two groups studied. The new drug does not appear to reduce the number of migraines since the rerandomized mean differences are considerably greater than the mean difference found between the two groups studied.
Answers: 2
Mathematics, 21.06.2019 19:40
Ascatter plot with a trend line is shown below. which equation best represents the given data? y = x + 2 y = x + 5 y = 2x + 5
Answers: 1
Mathematics, 21.06.2019 20:00
Someone answer asap for ! max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a. the median of max’s data is 250 b. more than half of the data points max recorded were 177 centimeters. c. a data point chosen at random is as likely to be above the mean as it is to be below the mean. d. every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.
Answers: 1
Mathematics, 21.06.2019 20:50
There are three bags: a (contains 2 white and 4 red balls), b (8 white, 4 red) and c (1 white 3 red). you select one ball at random from each bag, observe that exactly two are white, but forget which ball came from which bag. what is the probability that you selected a white ball from bag a?
Answers: 1
A new drug claims to reduce the number of migraines an individual suffers. In a study on the effecti...
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