Have the science scores declined significantly

Assignment Help Basic Statistics

Reference no: EM131422298

Newspaper headlines recently announced a decline in science scores among high school seniors. In 2000, a total of 15,109 seniors tested by The National Assessment in Education Program (NAEP) scored a mean of 147 points. Four years earlier, 7537 seniors had averaged 150 points.

The standard error of the difference in the mean scores for the two groups was 1.22.

a) Have the science scores declined significantly? Cite appropriate statistical evidence to support your conclusion.

b) The sample size in 2000 was almost double that in 1996. Does this make the results more convincing or less? Explain.

Reference no: EM131422298

Questions Cloud

Identify and describe the four purposes of research : Review examples of the four different purposes of research.Your Chief of Police has started a task force to identify the highest crime areas in your city. He is relying on you to advise him on the best way to determine these areas based on your re..

Do given results suggest that the new activities are better : Their scores are shown in the back-to-back stem-and-leaf display. Do these results suggest that the new activities are better? Test an appropriate hypothesis and state your conclusion.

Evaluate what type of corruption is presented : Evaluate what type of corruption is presented in each of the incidences (noble cause, structural or affiliation hypothesis, rotten apples/rotten barrels, and /or "slippery slope")

Describe what you believe to be your strengths : For each individual in your group, report on two interesting pieces of information you learned and describe what you believe to be your strengths and areas for improvement regarding small group communications.

Have the science scores declined significantly : Have the science scores declined significantly? Cite appropriate statistical evidence to support your conclusion.- The sample size in 2000 was almost double that in 1996. Does this make the results more convincing or less?

Discuss about the network architecture and security : Publications from the Strayer Learning Resource Center are also available. Additional resources should be used when necessary. Write a twelve to eighteen (12-18) page Security Administrator's handbook including policies tailored to your work envir..

Which type of error did the researchers commit : Explain what statistically significant means in this context.- If their conclusion is incorrect, which type of error did the researchers commit?

What is meant by metadata : What is meant by metadata? Does it mean the NSA can read your text messages and emails? Does President Obama's attorney general think the loss of current powers makes America less safe

Comment on the assumptions and conditions : Construct and interpret a 95% confidence interval for the difference between female and male crossing times.- Comment on the assumptions and conditions.

User Account

All Pages