Mathematics, 09.03.2020 19:18 2002babygurl
Questions on a statistics exam are considered good questions provided the questions discriminate between students who have studied for the exam and those who have not studied. Suppose that on a particular statistics exam the students were separated into two groups, the group that studied and the other group that had not studied. Data was collected and a 95% confidence interval for the difference in the proportion of those passing the exam from the group that studied and the proportion of those passing the exam from the group that had not studied. The confidence interval turned out to be (−0.005,0.125). Note that sample 1 is from the group that studied and sample 2 is from the group that did not study. Select the best answer.
A. We are 95% confident that there is no statistically significant difference between the passing rates of those who studied and those who did not study.
B. We are 95% confident that those who studied had a higher passing rate than those who did not study.
C. We are 95% confident that those who studied had a lower passing rate than those who did not study.
D. None of the these are correct.
Answers: 3
Other questions on the subject: Mathematics
Mathematics, 21.06.2019 13:30, cogger9348
Tom is making a punch that contains 80% cranberry juice and the rest ginger ale. the punch has 2 liters of ginger ale. part a: write an equation using one variable that can be used to find the total number of liters of cranberry juice and ginger ale in the punch. define the variable used in the equation and solve the equation. hint: 0.8x represents the number of liters of cranberry juice in the punch. (5 points) part b: how many liters of cranberry juice are present in the punch? show your work.
Answers: 1
Mathematics, 21.06.2019 16:30, chmereaustin1
An empty bucket is placed under a faucet dripping at a constant rate of 4 milliliters per minute. with the given information, which of these statements is a reasonable conclusion? a there will be 24 milliliters of water in the bucket after 16 hour. b there will be 60 milliliters of water in the bucket after 14 hour. c there will be 160 milliliters of water in the bucket after 20 minutes. d there will be 100 milliliters of water in the bucket after 40 minutes.
Answers: 1
Mathematics, 22.06.2019 00:00, jair512872
What is the value of x in this triangle? a. 53° b. 62° c. 65° d. 118°
Answers: 2
Mathematics, 22.06.2019 00:30, hannahpalacios101
36x2 + 49y2 = 1,764 the foci are located at: a) (-√13, 0) and (√13,0) b) (0, -√13) and (0,√13) c) (-1, 0) and (1, 0)
Answers: 1
You know the right answer?
Questions on a statistics exam are considered good questions provided the questions discriminate bet...
Questions in other subjects:
English, 21.08.2020 02:01
