Question

In: Statistics and Probability

Estimate the average Math SAT score of this school's engineering students using a 95% confidence interval....

Estimate the average Math SAT score of this school's engineering students using a 95% confidence interval.
Engineer
640
709
521
642
646
620
534
664
681
652
623
645
549
625
621
660
626
610
605
665
567
669
644
666
705
555
661
651

Solutions

Expert Solution

The data is :

Data

640

709

521

642

646

620

534

664

681

652

623

645

549

625

621

660

626

610

605

665

567

669

644

666

705

555

661

651

The statistics are:

Count 28
Mean 630.5714
St.Dev 47.8852

Let me know in the comments if anything is not clear. I will reply ASAP! Please do upvote if satisfied!


Related Solutions

a). A student read that a 95% confidence interval for the mean SAT Mathematics score of...
a). A student read that a 95% confidence interval for the mean SAT Mathematics score of Texas high school seniors in 2019 is 467 to 489. Asked to explain the meaning of this interval, the student responded, “In 2019, 95% of Texas high school seniors had SAT Mathematics scores between 467 and 489.” Is the student essentially correct? Justify your answer fully. b). A consumer group chose to study the true population mean salary (??) of “family practice” doctors in...
In order to estimate the average combined SAT score for students at a particular high school,...
In order to estimate the average combined SAT score for students at a particular high school, a random sample of 100 students was selected and the sample mean was determined to be 870 with a sample standard deviation of 12 points. a) Determine the error (for a 95% confidence interval) involved when trying to use the data from the sample to estimate the population. b) Use the information in part A to help construct a 95% confidence interval estimate for...
You are interested in finding a 95% confidence interval for the average commute that non-residential students...
You are interested in finding a 95% confidence interval for the average commute that non-residential students have to their college. The data below show the number of commute miles for 12 randomly selected non-residential college students. Round answers to 3 decimal places where possible. 8 7 25 13 23 26 6 6 6 28 8 12 a. To compute the confidence interval use a distribution. b. With 95% confidence the population mean commute for non-residential college students is between and...
The national average SAT score (for verbal and math) is 1028 . Suppose that nothing is...
The national average SAT score (for verbal and math) is 1028 . Suppose that nothing is known about the shape of the distribution and that the standard deviation is 100 . Round the final answer to at least four decimal places and intermediate z -value calculations to two decimal places. 1.If a random sample of 205 scores was selected, find the probability that the sample mean is greater than 1044 . Assume that the sample is taken from a large...
For a specific year, the average score on the SAT Math test was 525. The variable...
For a specific year, the average score on the SAT Math test was 525. The variable is normally distributed, and the population standard deviation is 105. A superintendent wishes to see if her students scored significantly higher than the national average on the test. She randomly selected 45 student scores and the mean for this sample was 545. At α = 0.05 , is there enough evidence to support the claim? μ = _________ σ = _________ n = _________...
Go Spurs Go! Construct a 95% confidence interval for the Spurs score using the data given...
Go Spurs Go! Construct a 95% confidence interval for the Spurs score using the data given in class. Given the results and their win loss record, can you make any conclusions about their offense/ defense in the year 2018? Support with EVIDENCE from the confidence interval! 116, 129, 120, 143,120,108,131,112,118,102,116,111,112,124,96,111,126,104,96,111,129,129,96,99,116,85,117,113
Construct a? 95% confidence interval to estimate the population proportion using the data below. x =...
Construct a? 95% confidence interval to estimate the population proportion using the data below. x = 29 n = 90 N = 500 The? 95% confidence interval for the population proportion is? (_,_).
Suppose we wish to estimate the mean heart rate, using a 95% confidence interval, for a...
Suppose we wish to estimate the mean heart rate, using a 95% confidence interval, for a par- ticular population. We observe 130 individuals to see a sample mean of 98.249 and a sample standard deviation of 0.733. We then find the tc-value, corresponding to the value on the t-distribution (d.f. = 130) so that the area to the left of it is equal to 95%, which ends up being: tc ≈ 1.656659. Next we compute the error and obtain our...
A confidence interval was used to estimate the proportion of math majors that are female. A...
A confidence interval was used to estimate the proportion of math majors that are female. A random sample of 72 math majors generated the following confidence interval: (0.438, 0.642). Using the information above, what size sample would be necessary if we wanted to estimate the true proportion to within 5% using 95% reliability? a. 396 b. 400 c. 385 d. 382
The average math SAT score is 517517 with a standard deviation of 112112. A particular high...
The average math SAT score is 517517 with a standard deviation of 112112. A particular high school claims that its students have unusually high math SAT scores. A random sample of 5050 students from this school was​ selected, and the mean math SAT score was 546546. Is the high school justified in its​ claim? Explain.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT