# statistics

1. A researcher is interested in whether students who attend private high schools have higher average SAT Scores than students in the general population. A random sample of 90 students at a private high school is tested and and a mean SAT score of 1030 is obtained. The average score for public high school student is 1000 (ó= 200).

a. Is this a one- or two tailed test?

1. 👍 0
2. 👎 0
3. 👁 417
1. It depends on what your alternate hypothesis is.

Ho: m1 = m2

Ha: m1 > m2 (one-tailed)
or
Ha: m1 ≠ m2 (two-tailed)

1. 👍 0
2. 👎 0

## Similar Questions

1. ### statistics

A researcher is testing the hypothesis that consuming a sports drink during exercise improves endurance. A sample of n=50 male college students is obtained and each student is given a series of three endurance tasks and asked to

asked by Melissa Williams on March 18, 2011
2. ### Statisics Question Help Please

The proportion of students in private schools is around 11%. A random sample of 450 students from a wide geographic area indicated that 55 attended private schools. Estimate the true proportion of students attending private

3. ### Math

For the most recent year available, the mean annual cost to attend a private university in the United States was \$20,082. Assume the distribution of annual costs follows the normal probability distribution and the standard

asked by Meredith on October 7, 2014
4. ### math

Which describes a random selection procedure? A. A computer program randomly selects 100 students, splits the list in half alphabetically, and accordingly sends one of the two new forms of the report card. B. A flip of a coin

asked by James on October 1, 2019
1. ### psychology

Listed below are the effects of observation on research. Match the bias of the effect with the research situation described. Observation Bias: A. Researcher's own feelings B. Inadequate research methods C. Researcher's closeness

asked by sue on November 7, 2018
2. ### Statistics

A researcher interested in relationships developed a questionnaire that measures the degree of affection adult men feel for their fathers. She has found that for the general population the distribution is skewed to the right, the

asked by Vixen on September 28, 2009
3. ### Statistics

A researcher interested in relationships developed a questionnaire that measures the degree of affection adult men feel for their fathers. She has found that for the general population the distribution is skewed to the right, the

asked by Vixen on September 28, 2009
4. ### statistics

A researcher interested in relationships developed a questionnaire that measures the degree of affection adult men feel for their fathers. She has found that for the general population the distribution is skewed to the right, the

asked by stat on October 5, 2009

The U.S. Supreme Court ruled that cities could have school voucher programs that give money directly to parents, who could then choose between competing schools, public or private. The idea was to create competition among schools.

asked by Lisa on January 6, 2011
2. ### math

A researcher wanted to answer the following question: What is the difference in students' computer anxiety based on whether or not they own computers? The researcher surveyed 92 undergraduate education students via an online

asked by kathy on June 24, 2012
3. ### Statistics

The father of a junior high school student wants to determine the most popular book among junior high students. Select the sample with the least potential bias. A. A randomly selected group of 10 book sellers B. A randomly

asked by Amy on September 11, 2014
4. ### statistics

A researcher interested in relationships developed a questionnaire that measures the degree of affection adult men feel for their fathers. She has found that for the general population the distribution is skewed to the right, the

asked by Anonymous on July 28, 2010