Effectiveness of a new study-skills training program

Reference no: EM1395830

A researcher is investigating the effectiveness of a new study-skills training program for elementary school children. A sample of n= 25 third grade children and each child is given a standardized achievement test at the end of the year. For the regular population of third grade children, scores on the test form a normal distribution with a mean of µ = 150 and a standard deviation of σ = 25. The mean for the sample is M = 158.

a. Sketch the appropriate distribution, and locate the critical regions for α = .05.

b. Calculate the test statistics (z score) for the sample.

c. What decision should be made about the effect of the program?

Reference no: EM1395830

Questions Cloud

What brain structure would you expect cocaine to have : In what brain structure would you expect cocaine to have the largest effect on dopamine transmission and why.

Illustrate what are the most controversial issues you see : Illustrate what are the most controversial issues you see in electronic gaming today? Elucidate your answer.

How signature sequences used in bacterial identification : What is the best way to administer chemotherapy? Single agent or combination chemotherapy? Explain how signature sequences are used in bacterial identifications.

Choose the best level of causation addressed : Male songbirds sing in spring because increasing daylength at this time stimulates testosterone production which spurs growth of song control circuits in the brains of male songbirds. Choose the best level of causation addressed by this explanatio..

Effectiveness of a new study-skills training program : A researcher is investigating the effectiveness of a new study-skills training program for elementary school children. A sample of n= 25 third grade children and each child is given a standardized achievement test at the end of the year.

Develop a compensation policy for the teller position : Develop a compensation policy for the Teller position of a local bank. Suppose which there are four tellers, two were hired in May, the other two in December, also the compensation policy should comprise

Perform prediction-multiple regression model : A medical researcher found a significant relationship among a person's age x1, cholesterol level x2, sodium level of the blood x3, and systolic blood pressure y.

Which of the types of microbes would a microbiologist use : For which of the following types of microbes would a microbiologist use culture techniques for living host cells? a.) capnophiles b.)normal skin bacteria c.)Campylobacteria sp. d.) obligate intracellular organisms, such as chlamydia and viruses

Create marketing plan for product or service : Choose the product or service you would like to introduce to marketplace. It may be from the existing company or a new concept.

User Account

All Pages