Question

Let us assume that there are 16 students who took the SAT in your class. The...

Let us assume that there are 16 students who took the SAT in your class. The 16 students’ SAT score average was 1350. Find the probabilities of the followings.

  1. What is the probability that MEAN score of the 16 students is higher than 1350? (0.7% of your grade)
  1. The number of students increased to 25 from 16. How the answer for 3 changes? (0.7% of your grade)
Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
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
Similar Questions
A certain test preparation course is designed to improve students' SAT Math scores. The students who...
A certain test preparation course is designed to improve students' SAT Math scores. The students who took the prep course have a mean SAT Math score of 507 while the students who did not take the prep course have a mean SAT Math score of 501. Assume that the population standard deviation of the SAT Math scores for students who took the prep course is 45.7 and for students who did not take the prep course is 32.1 The SAT...
A certain test preparation course is designed to improve students' SAT Math scores. The students who...
A certain test preparation course is designed to improve students' SAT Math scores. The students who took the prep course have a mean SAT Math score of 507 while the students who did not take the prep course have a mean SAT Math score of 501. Assume that the population standard deviation of the SAT Math scores for students who took the prep course is 45.7 and for students who did not take the prep course is 32.1 The SAT...
a.       Two sections of a class took the same quiz. Section A had 16 students who had...
a.       Two sections of a class took the same quiz. Section A had 16 students who had a mean score of 84, and section B had 20 students who had a mean score of 90. Overall, what was the mean score for all students who took the quiz from sections A and B? b.       A professor has recorded quiz grades for 20 students in his class, but one of the grades is no longer readable. If the mean score on the quiz...
Two sections of a class took the same quiz. Section A had 16 students who had...
Two sections of a class took the same quiz. Section A had 16 students who had a mean score of 84, and section B had 20 students who had a mean score of 90. Overall, what was the mean score for all students who took the quiz from sections A and B? b.       A professor has recorded quiz grades for 20 students in his class, but one of the grades is no longer readable. If the mean score on the quiz...
A certain test preparation course is designed to improve students' SAT Math scores. The students who...
A certain test preparation course is designed to improve students' SAT Math scores. The students who took the prep course have a mean SAT Math score of 504 with a standard deviation of 38.5, while the students who did not take the prep course have a mean SAT Math score of 492 with a standard deviation of 43.5. The SAT Math scores are taken for a sample of 78 students who took the prep course and a sample of 85...
The distribution of SAT scores in math for an incoming class of business students has a...
The distribution of SAT scores in math for an incoming class of business students has a mean of 610 and standard deviation of 20. Assume that the scores are normally distributed. Find the probability that an individual’s SAT score is less than 600. Find the probability that an individual’s SAT score is between 590 and 620. Find the probability that an individual’s SAT score is greater than 650. What score will the top 5% of students have?
A researcher wants to determine whether high school students who attend an SAT preparation course score...
A researcher wants to determine whether high school students who attend an SAT preparation course score significantly different on the SAT than students who do not attend the preparation course. For those who do not attend the course, the population mean is 1050 (? = 1050). The 16 students who attend the preparation course average 1150 on the SAT, with a sample standard deviation of 300. On the basis of these data, can the researcher conclude that the preparation course...
Do students who take SAT coaching classes improve their test scores? Seven students were selected randomly...
Do students who take SAT coaching classes improve their test scores? Seven students were selected randomly from all of the students who completed an SAT coaching class in a given year. For each student, the first SAT score (before the class) and the second SAT score (after the coaching class) were recorded. The data is summarized below: Student 1 2 3 4 5 6 7 First SAT score 920 820 960 920 1060 860 1010 Second SAT score 1030 800...
Todd is a high school student who just took the SAT. The following are his SAT...
Todd is a high school student who just took the SAT. The following are his SAT scores for Math and Critical Reading, along with the overall mean and standard deviation for the students who took the test in the same year. The overall test scores are Normally distributed. Which of the following statements is false? Score Mean Standard Deviation Critical Reading 521 495 116 Math 535 511 120 a. In comparison to the other students, Todd performed better on the...
There were 480 students who entered as the Class of 2009. Of these, 430 submitted SAT...
There were 480 students who entered as the Class of 2009. Of these, 430 submitted SAT scores by the time they enrolled. If you select a name at random from this class, what is the probability that the student did not submit an SAT score? what is the answer?
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT