#17 please When a class of 23 students took the SAT, they had a mean score...
i need help with 17 please When a class of 23 students took the SAT, they had a mean score of 1445 with a standard deviation of 178. Construct a 99% confidence interval for the mean SAT score of all students (u). (1368, 1522) O (1381, 1509) O (1352, 1538) (1340, 1550) QUESTION 17 3 poin What is the margin of error of the confidence interval constructed in exercise 167
QUESTION 16 When a class of 23 students took the SAT, they had a mean score of 1445 with a standard deviation of 178. Construct a 99% confidence interval for the mean SAT score of all students (). O (1368, 1522) O (1381, 1509) (1352, 1538) (1340, 1550)
QUESTION 16 When a class of 23 students took the SAT, they had a mean score of 1445 with a standard deviation of 178. Construct a 99% confidence interval for the mean SAT score of all students (u). O (1368, 1522) O (1381, 1509) O (1352, 1538) O (1340, 1550)
A box contains 140 USB drives 38 of which are defective. consider drawing a non-defective USB drive to be a success. if 25 USB drives are randomly selected without replacement, the results do not form a binomial distribution for which reasons select all that apply. a. There is not a fixed number of trials. b. The probability of success is not the same in each trial. c. each trial has more than two possible outcomes. d. The trials are dependent...
64 college students took a placement test. Their mean score was 29.5 points with a standard deviation of 7.3 points. Construct a 95% confidence interval for the mean score on this placement exam for all students.
urgent please QUESTION 17 Thirty-six randomly selected students took a Statistics test. If the sample mean was 72 and the sample standard deviation was 12, what will the the margin of error when constructing 95% confidence interval for the mean score of all students assuming that the population is normally distributed 4.00 5.15
14. Do students tend to improve their SAT mathematics (SAT-M) score the second time they take the test? A random sample of four students who took the test twice received the following scores: Student 12 13 First Score 450 520 720 600 Second Score 440 600 720 630 11 Assume that the change in SAT-M score (second score – first score) for the population of all students taking the test twice is Normally distributed with mean Find an 80% confidence...
An investigator in a university wants to know the mean math SAT score among all the applications to the university this year (denoted by μ). A random sample of n = 50 applications are selected. The sample mean is X(x bar) = 530 and the sample variance is s2 = 8100. a. Obtain a point estimate for μ. Compute its standard error. b.Construct a 95% (two-sided) confidence interval for μ. c. Construct a 99% (two-sided) confidence interval for μ. d....
2. A simple random sample of 15 college students showed a mean credit score of 655 and standard deviation 20. Construct the 99% confidence interval estimate of the mean credit score for all college students. a. State the critical value. b. Compute the margin of error. c. State the confidence interval.
arameter Estimation .C 11. Thirty-five randomly selected students took the calculus final. If the sample mean was 82 and standard deviation was 4.6, construct a 99% confidence interval for the mean score of all students. 35 Provide estimates and circle one of the multiple choice answers. (6 points) 34.