subject
Mathematics, 11.04.2020 00:55 lindseyreneesmith7

Suppose parts (a) through (d) below provide results for a study on the role of calcium in reducing the symptoms of PMS. For each of the parts, compute an approximate 95% confidence interval for the difference in mean symptom scores between the placebo and calcium-treated conditions for the symptom listed. In each case, the results given are mean ± standard deviation. Suppose there were 228 participants in the placebo group and 212 in the calcium-treated group. (Round your answers to two decimal places.)

(a) mood swings: placebo = 0.70 ± 0.78; calcium = 0.50 ± 0.53
(b) crying spells: placebo = 0.39 + 0.57; calcium = 0.21 + 0.40
(c) aches and pains: placebo = 0.45 + 0.60; calcium = 0.37 + 0.45
(d) craving sweets or salts: placebo = 0.60 + 0.75; calcium = 0.44 + 0.61

ansver
Answers: 3

Another question on Mathematics

question
Mathematics, 21.06.2019 15:50
Which of the following represents a number squared is equal to twenty more than nine times that number ? a) x squared = 9x + 20 b) x squared = 20x + 9 c) x squared > 9 + 20x d) x squared = 9 + x + 20
Answers: 2
question
Mathematics, 21.06.2019 18:30
Which statement justifies why angle ebc measures 90?
Answers: 3
question
Mathematics, 21.06.2019 20:00
15 there is a line that includes the point 0,10 and has a slope of 7/4. what is it’s equation in slope intercept form
Answers: 1
question
Mathematics, 21.06.2019 20:50
These tables represent a quadratic function with a vertex at (0, -1). what is the average rate of change for the interval from x = 9 to x = 10?
Answers: 2
You know the right answer?
Suppose parts (a) through (d) below provide results for a study on the role of calcium in reducing t...
Questions
question
World Languages, 23.11.2020 07:40
question
Geography, 23.11.2020 07:40
question
Mathematics, 23.11.2020 07:40