Mathematics, 25.04.2021 03:40 ddddre3909
A pharmaceutical company needs to know if its new cholesterol drug, Praxor, is effective at lowering cholesterol levels. It believes that
people who take Praxor will average a greater decrease in cholesterol level than people taking a placebo. After the experiment is complete,
the researchers find that the 32 participants in the treatment group lowered their cholesterol levels by a mean of 19.9 points with a
standard deviation of 3.9 points. The 36 participants in the control group lowered their cholesterol levels by a mean of 19.3 points with a
standard deviation of 1.3 points. Assume that the population variances are not equal and test the company's claim at the 0.01 level. Let
the treatment group be Population 1 and let the control group be Population 2
Step 2 of 3: Compute the value of the test statistic. Round your answer to three decimal places.
Answers: 1
Another question on Mathematics
Mathematics, 21.06.2019 18:50
Abag contains 4 red, 7 blue and 5 yellow marbles. event a is defined as drawing a yellow marble on the first draw and event b is defined as drawing a blue marble on the second draw. if two marbles are drawn from the bag, one after the other and not replaced, what is p(b|a) expressed in simplest form? a. 7/16 b. 7/15 c. 14/16 d. 14/15
Answers: 1
Mathematics, 21.06.2019 19:00
Jack did 3/5 of all problems on his weekend homework before sunday. on sunday he solved 1/3 of what was left and the last 4 problems. how many problems were assigned for the weekend?
Answers: 3
Mathematics, 21.06.2019 22:00
Which two transformations are applied to pentagon abcde to create a'b'c'd'e'? (4 points) translated according to the rule (x, y) ? (x + 8, y + 2) and reflected across the x-axis translated according to the rule (x, y) ? (x + 2, y + 8) and reflected across the y-axis translated according to the rule (x, y) ? (x + 8, y + 2) and reflected across the y-axis translated according to the rule (x, y) ? (x + 2, y + 8) and reflected across the x-axis
Answers: 1
Mathematics, 22.06.2019 03:30
If the regular price was $115, how much did jeanine pay for the hiking boots? jeanine bought a new pair of hiking boots on sale for 25% off the regular price. enter the correct answer. ooo done clestall the following formula describes this scenario: Ä‘oo s = r. 0.25 r = regular price s = sale price
Answers: 1
You know the right answer?
A pharmaceutical company needs to know if its new cholesterol drug, Praxor, is effective at lowering...
Questions
English, 28.05.2020 21:59
Mathematics, 28.05.2020 21:59
English, 28.05.2020 21:59
Mathematics, 28.05.2020 21:59
Mathematics, 28.05.2020 21:59
Computers and Technology, 28.05.2020 21:59
