Author Question: Use the following statistical output for a difference between two-proportions to determine the upper ... (Read 53 times)

MirandaLo · **on:** Jul 24, 2018

Use the following statistical output for a difference between two-proportions to determine the upper bound of the 95 confidence interval.
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CI for Two Proportions
Sample X N Sample p
1 30 40 0.750000
2 13 20 0.650000
Difference = p (1) - p (2)
Estimate for difference: 0.1
95 CI for difference: (-0.1484, _______)

1.0.1481
2.-0.0484
3.0.3484
4.0.1000

Question 2

A study seeks to determine whether the proportion of Dutch boys who listen to music at high volume is greater than this proportion for Dutch girls. After checking to make sure that all of the necessary conditions were met, we calculated the value of the z test statistic to be z = 2.999. Which of the following is the P-value associated with this test?
1.0
2.0.0014
3.0.0028
4.0.9986
5.0.9972