ZuoTi.Pro
Question

The national average SAT score is roughly 1500. We would like to see if the high school seniors who apply to Duke have higher than average SAT scores. We randomly sample 100 applicants files and record their SAT scores. Which of the following is the correct set of hypotheses for this research question? Hint think about how many samples we have data from OHo: p 1500, HA p 1500 OHy ?-1500; HA ?# 1500 OHo x 1500, HA x > 1500 Ho: ? Duke-u Natoeal. HA ? Duke> ? National

math   Statistics-And-Probability   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1

Claim : To test whether or not that the high school seniors who apply to duke have higher than average SAT scores.

Hypothesis :  Ho : \mu = 1500

H1: \mu > 1500

Right tailed test

0 0
Add a comment
Know the answer?
Add Answer to:
The national average SAT score is roughly 1500. We would like to see if the high...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions

  • The national average SAT score is 1028. If we assume a normal distribution with a standard...

    The national average SAT score is 1028. If we assume a normal distribution with a standard deviation of 92. What is the probability that a randomly selected score is less then 1100

  • Scores of the Math portion of the SAT (SAT-M) are known to have a national mean...

    Scores of the Math portion of the SAT (SAT-M) are known to have a national mean μ=500 and standard deviation σ=100. A random sample of n=400 high-school seniors was chosen and their average SAT-M score was found to be x̅=522. Would this finding surprise you? A, Yes, since an average of 522 is more than 4 standard deviations above 500. B. Yes, since an average of 522 is larger than 500. C. No since an average of 522 is less...

  • Math SAT Scores (Raw Data, Software Required): Suppose the national mean SAT score in mathematics is...

    Math SAT Scores (Raw Data, Software Required): Suppose the national mean SAT score in mathematics is 510. The scores from a random sample of 40 graduates from Stevens High are given in the table below. Use this data to test the claim that the mean SAT score for all Stevens High graduates is the same as the national average. Test this claim at the 0.05 significance level. (a) What type of test is this? This is a left-tailed test. This...

  • SAT scores have μ=1500 and σ=300. I plan to collect a sample with 900 students. The...

    SAT scores have μ=1500 and σ=300. I plan to collect a sample with 900 students. The average of sample means from samples of n=900 is ____ The SD of sample means from samples of n=900 is What are the chances of getting sample mean less than 1500? P(x ̅<1500)=______ First, calculate the z-score. Then use Stata or the Online Stat Book. What are the chances of getting sample mean less than 1480? P(x ̅<1480)=______ What are the chances of getting...

  • The average math SAT score is 525 with a standard deviation of 113. A particular high...

    The average math SAT score is 525 with a standard deviation of 113. A particular high school claims that its students have unusually high math SAT scores. A random sample of 45 students from this school was​ selected, and the mean math SAT score was 554. Is the high school justified in its​ claim? Explain.

  • The average math SAT score is 514 with a stand deviation of 117. A particular high...

    The average math SAT score is 514 with a stand deviation of 117. A particular high school claims that its students have unusually high math SAT scores. A random sample of 56 students from this school was selected, and the mean math SAT score was 547. Is the high school justified in its claim? Explain. since it within the range of a usual event, namely within of the mean of the because the scores (Round to two decimal places as...

  • 1. Suppose the scores for high school seniors on the verbal portion of the SAT test...

    1. Suppose the scores for high school seniors on the verbal portion of the SAT test have a population mean of 509 and a population standard deviation of 112. a. List the population and the variable. b. What do you know about the population distribution of SAT scores for high school seniors? (i.e. shape, center, spread) c. Suppose we randomly select 56 high school seniors from this population. What would you expect the shape, mean and standard deviation of the...

  • The average math SAT score is 517517 with a standard deviation of 112112. A particular high schoo...

    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.

  • 23. The national average SAT score (for Verbal and Math) is 1019. If we assume a...

    23. The national average SAT score (for Verbal and Math) is 1019. If we assume a normal distribution with o= 100, a. what SAT score is in the 85th percentile? b. what is the probability that a randomly selected score exceeds 1200? 26. Ten randomly selected people were asked how long they slept at night. The mean time was 7.1 hours, and the standard deviation was 0.78 hour. Assume that the data is normally distributed a. For a 95% confidence...

  • The average math SAT score is 519 with a standard deviation of 112. A particular high...

    The average math SAT score is 519 with a standard deviation of 112. A particular high school claims that its students have unusually high math SAT scores. A random sample of 45 students from this school was selected, and the mean math SAT score was 560. Is the high school justified in its claim? Explain answers is ( choose yes/or no) , because the z score ( which is? ) is ( choose, usual or not usual) since it (...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT