Mathematics, 08.07.2020 20:01, td0715
In a recent poll of 500 13-year-olds, many indicated to enjoy their relationships with their parents. Suppose that 200 of the 13-year olds were boys and 300 of them were girls. We wish to estimate the difference in proportions of 13-year old boys and girls who say that their parents are very involved in their lives. In the sample, 93 boys and 172 girls said that their parents are very involved in their lives. What is a 96% confidence interval for the difference in proportions (proportion of boys minus proportion of girls)?
Answers: 2
Mathematics, 21.06.2019 13:00, nhester3378
Given tanβ
=4/3 and Ο< β
< (3Ο)/2; find cos2β
a. -24/25 b. 24/25 c. -24/7 d. -7/25
Answers: 1
Mathematics, 21.06.2019 18:50, BrainzOli7408
If sr is 4.5cm and tr is 3cm, what is the measure in degrees of angle s?
Answers: 2
Mathematics, 21.06.2019 19:00, jamilamiller200
Solve 3x-18=2y and 5x-6y=6 by elimination show work
Answers: 2
In a recent poll of 500 13-year-olds, many indicated to enjoy their relationships with their parents...
Mathematics, 13.02.2020 00:15
Mathematics, 13.02.2020 00:15
Mathematics, 13.02.2020 00:15