Mathematics, 20.12.2019 06:31, mommabear4887
18. a simple random sample of size n is drawn from a population that is normally distributed. the sample mean, x, is found to be 50, and the sample standard deviation, s, is found to be 8. (a) construct a 98% confidence interval for m if the sample size, n, is 20. (b) construct a 98% confidence interval for m if the sample size, n, is 15. how does decreasing the sample size affect the margin of error, e? (c) construct a 95% confidence interval for m if the sample size, n, is 20. compare the results to those obtained in part (a). how does decreasing the level of confidence affect the margin of error, e? (d) could we have computed the confidence intervals in parts (a)–(c) if the population had not been normally distributed? why?
Answers: 3
Mathematics, 21.06.2019 15:00, bige556
Cherie measures and records the lengths and sizes of the same style of a sandal found at a shoe store. which equation can be used to determine the approximate shoe size, s, for a foot length of x inches? s = x – 2 s = 2x – 10 s = x + 6 s = 2x + 4
Answers: 3
Mathematics, 21.06.2019 15:10, Mistytrotter
Solve the system by the elimination method. x + y - 6 = 0 x - y - 8 = 0 when you eliminate y , what is the resulting equation? 2x = -14 2x = 14 -2x = 14
Answers: 2
Mathematics, 21.06.2019 18:00, kellysmith45
The chs baseball team was on the field and the batter popped the ball up. the equation b(t)=80t-16•16+3.5 represents the height of the ball above the ground in feet as a function of time in seconds. how long will the catcher have to get in position to catch the ball before it hits the ground? round to the nearest second
Answers: 3
18. a simple random sample of size n is drawn from a population that is normally distributed. the sa...
Mathematics, 29.06.2020 01:01
Mathematics, 29.06.2020 01:01
Mathematics, 29.06.2020 01:01
Mathematics, 29.06.2020 01:01
Mathematics, 29.06.2020 01:01
Mathematics, 29.06.2020 01:01