What is the mean and standard deviation for this groups sat, Ask an Expert

Statistics

1. A sample of 10 high school students completed a course designed to increase SAT verbal scores. The following is the summary for this group's SAT verbal scores after completion of the course: Σx= 5846, Σx2 =3428148.

a. What is the mean and standard deviation for this groups' SAT verbal score?

b. What is the 95% confidence interval for the mean SAT verbal score for these students?

c. In the past, students have had an average SAT verbal score of 542. Can the school accurately conclude that this new course significantly improved the SAT verbal scores of these 10 students? Write both a statistical statement and an English statement.

d. If a student made a 500 on this SAT, what would be his/her percentile rank?

View complete question

Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M9376382

Have any Question?Write your Review or question?

Related Questions in Statistics and Probability

Runzheimer international publishes business travel costs

Runzheimer International publishes business travel costs for various cities throughout the world. In particular, they publish per diem totals that represent the average costs for the typical business traveler, including ...

Sixty percent of adults have looked at their credit score

Sixty percent of adults have looked at their credit score in the past six months. If you select 31 customers, what is the probability that at least 25 of them have looked at their score in the past six months?

1 what is the ytm for a 14-year semi-annual bond that pays

1. What is the YTM for a 14-year semi-annual bond that pays $35 every six months and has a purchase price of $980.000? Face value is $1,000. 2. A person wants to put aside $500 at the beginning of each month for 10 years ...

1 consider the following data on distances traveled by 60

1 . Consider the following data on distances traveled by 60 people to visit the local amusement park. distance freq 1-8 20 9-16 18 17-24 10 25-32 6 33-40 6 Expand and construct the table adding columns for relative frequ ...

A sample of 175 randomly selected students found that the

A sample of 175 randomly selected students, found that the proportion of students planning to travel home for thanksgiving is 0.64 What is the standard deviation of the sampling distribution.

Based on land minerals and natural resources labor and

Based on land, minerals and natural resources, labor and entrepreneurial innovation, which country do you feel has the greatest long-term potential China or Russia.

In a pre-election poll a candidate for district attorney

In a pre-election poll, a candidate for district attorney receives 379 of 750 votes. Assuming that the people polled represent a random sample of the voting population, test the claim that a majority of voters support th ...

Illustrate the difference between straight and cumulative

Illustrate the difference between straight and cumulative voting systems using as an example a shareholder who owns 5,000 shares and an election in which six directors will be selected. Why might shareholders care about ...

Basic statisticsactivity 1define the following terms1

BASIC STATISTICS Activity 1 Define the following terms: 1. Statistics 2. Descriptive Statistics 3. Inferential Statistics 4. Population 5. Sample 6. Quantitative Data 7. Discrete Variable 8. Continuous Variable 9. Qualit ...

Monthly water bills for a city have a mean of 10843 and a

Monthly water bills for a city have a mean of $108.43 and a standard deviation of $36.98. Find the probability that a randomly selected bill will have an amount greater than $165, which the city believes might indicate t ...

4,153,160 Questions Asked
13,132 Experts
2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Recent Questions

Ask Statistics and Probability Expert