Compute population of seniors from data

Assignment Help Basic Statistics
Reference no: EM13114476

25 seniors from a large metropolitan area school district volunteer to allow their Math SAT test scores to be used in a study. These 25 seniors had a mean Math SAT score of x = 450. Suppose we know that the standard deviation of the population of Math SAT scores for seniors in the district is σ = 100. Assuming the population of Math SAT scores for seniors in the district is approximately normally distributed, a 90% confidence interval for the mean Math SAT score μ for the population of seniors computed from these data is?

Reference no: EM13114476

Questions Cloud

How is your response to this assignment consistent : Defend or oppose this statement. How is your response to this assignment consistent with the moral philosophy? Explain.
How much natural gas will he need to burn : A cook wants to heat 1.35 of water from 32.0 to 100.0 .If he uses the combustion of natural gas (which is exothermic) to heat the water, how much natural gas will he need to burn.
What type of neurotransmitter : The stimulation of a motor neuron ultimately results in the release of a neurotransmitter at the synapse between the neuron and a muscle cell. What type of neurotransmitter is used at these neuromuscular junctions?
Legal and ethical implications of media giant mergers : Discuss the legal and ethical implications of the ongoing debate and take a position as to whether the changes should be allowed and would they benefit DWI.
Compute population of seniors from data : Assuming the population of Math SAT scores for seniors in the district is approximately normally distributed, a 90% confidence interval for the mean Math SAT score μ for the population of seniors computed from these data is?
Determine areas in the budget where cost cutting can be made : Develop a time-phased budget for the project. What will be the cumulative cost of the project? Determine areas in the budget where cost cutting can be made if needed?
Which of the following is not a good assumption : When using the Nernst equation to calculate membrane potential, we are making several assumptions about conditions in the cell. Which of the following is not a good assumption?
Dimensions of critical thinking : Write a one-page essay in which you explore insights into your own critical thinking process gained through this exercise. "Dimensions of Critical Thinking"
Calculate the density of the solid : A 34.32-g sample of a solid is placed in a flask. Liquid toluene, in which the solid is insoluble, is added to the flask so that the total volume of solid and liquid together is 96.44 ml.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Confidence level to determine the population proportion

A high school counselor is interested in the percentage of students who will be going to college. She randomly picks 60 students and finds that 53 will be going to college. Use a 95% confidence level to find the population proportion.

  Cumulative percentage distribution for average airfares

Construct a frequency distribution, percentage distribution, and cumulative percentage distribution for average airfares.

  Company yearly costs for the next five years

A startup company began manufacturing toy dolls tailored to environmental-oriented customers. Using linear regression, find a linear model for the Cost Function if the company's yearly costs for the next five years were (2005,$8,000,000),(2006,$1..

  Paired t test comparing means of two populations

Dr. Justin Case wants to explore whether or not students perform better if they cram for a test (massed practice) or if they space their studying over weeks (distributed practice).

  Dependent variable-discrete or continuous

Is the dependent variable discrete or continuous? interval, or ratio) is used to measure the dependent variable?

  Problems on hypothesis testing

Assume that a 2005 poll of 1000 American voters found that 76% of Republicans favored ending the tax on dividend income, as did 42% of Democrats and 54% of Independents.

  Linear programming-simplex method

Kay Manning is a sales manager with two salespeople working for her. The ability of each salesperson to secure new accounts has historically been: Jesse Burkett can generate 4 new accounts per 10 visits to prospects

  Find confidence interval estimate for the population mean

A survey of 30 adults found that the mean age of a person's primary vehicle is 5.6 years. Assuming the standard deviation of the populaiton is 0.8 year, find the 99% confidence interval estimate for the population mean.

  Purpose of truth for the given statement

The field of statistics can be roughly subdivided into two areas: descriptive statistics and probability.

  Determine shortest time spent waiting for heart

Determine the shortest time spent waiting for a heart that world still place a patient in the top 10% of waiting times? In days?"

  Standard deviation-bell shaped distribution

Assume the data have bell shaped distribution with a mean of 30 and a standard deviation of 5. Employ the empirical rule to determine the percentage of data within each of the following ranges: 20 to 40, 15 to 45, and 25 to 35.

  Probability-standard normal distribution

Nationwide, GMAT scores in a particular year had an average of 528 with an SD of 112 and the scores roughly followed a normal curve. If a student scored 600 on the exam, approximately what percentage of test-takers scored below this student?

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd