Mathematics, 29.06.2019 15:10, Serenitybella
Construct the indicated confidence interval for the difference between the two population means. assume that the two samples are independent simple random samples selected from normally distributed populations. do not assume that the population standard deviations are equal. a researcher was interested in comparing the resting pulse rates of people who exercise regularly and the pulse rates of people who do not exercise regularly. she obtained independent simple random samples of 16 people who do not exercise regularly and 12 people who do exercise regularly. the resting pulse rates (in beats per minute) were recorded and the summary statistics are as follows. do not exercise : regularly exercise regularlyx1 = 72.3 beats/min : x2 68.1 beats/mins1= 10.9 beats/min : s2= 8.2 beats/minn1 = 16 : n2=12construct a 95% confidence interval for µ1 - µ2, the difference between the mean pulse rate of people who do not exercise regularly and the mean pulse rate of people who exercise regularly. a. -3.53 beats/min < µ1 - µ2 < 11.93 beats/minb. -3.22 beats/min < µ1 - µ2 < 11.62 beats/minc. -3.55 beats/min < µ1 - µ2 < 11.95 beats/mind. -3.24 beats/min < µ1 - µ2 < 11.64 beats/min
Answers: 2
Mathematics, 21.06.2019 19:00, kalebbenton15
What will the graph look like for a system of equations that has no solution? a. the lines will be perpendicular. b. the lines will cross at one point. c. both equations will form the same line. d. the lines will be parallel.
Answers: 1
Mathematics, 21.06.2019 22:20, twentyonepilots12018
Which of the following equations are equivalent to -2m - 5m - 8 = 3 + (-7) + m? -15m = -4m -7m - 8 = m - 4 -3m - 8 = 4 - m m - 4 = -7m - 8 -8 - 7m = -4 + m -8 - 3m = 4 - m
Answers: 1
Construct the indicated confidence interval for the difference between the two population means. ass...
English, 19.03.2020 04:39
English, 19.03.2020 04:40
English, 19.03.2020 04:40