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

  Performance of z-test as opposed to a t-test

Describe when a z-test should be performed as opposed to a t-test? Which (if any) can we use all the time? Why or why not?

  Probability of selecting female student

A survey of undergraduate students in the School of Business at Northern University revealed the following regarding the gender and majors of the students:

  Probability of basketball throws

Consider a high school basketball player that is a 70% free throw shooter. During the season, what is the probability that this player makes the third free throw in five shots (exactly 3 shots in 5 attempts)?

  Probability values in case of raw data-binomial-normal

To find the probability values in case of raw data, binomial, normal

  Difference-null-alternative hypothesis statements

What is the difference between the null and alternative hypothesis statements in one tailed and two tailed tests? How can manufacturing companies use the standard normal distribution to determine quality control of their products?

  Student selected at random from the class

Suppose that a certain college class contains 54 students. Of these, 34 are sophomores, 35 are psychology majors, and 7 are neither. A student is selected at random from the class.

  Failure to reject the null hypothesis

Assuming that a hypothesis test of the claim has been conducted and that the conclusion is failure to reject the null hypothesis, state the conclusion in nontechnical terms.

  Statistic-critical value and p value

Suppose a study is constructed to test a claim, at a 0.05 signifigance level that a population proportion is 40%. A simple random sample of 750 subjects has a proportion of 42%.

  Description of chi-square statistic

Why do you use the chi-square statistic? What type of data is used with chi square analysis?

  Determining conditional probabilities in poker

Probability of a flush.  Poker player holds flush when all 5 cards in hand belong to same suit (clubs, diamonds, hearts, or spades).

  Confidence interval for the population mean-margin error

Find a 99% confidence interval for the population mean annual number of reported larceny cases in such communities. What is the margin of error? (Round your answers to one decimal place.)

  Determining anova and t test

A large discount chain compares the performance of its credit managers in Ohio and Illinois by comparing the mean dollar amounts owed by customers with delinquent charge accounts in these two states.

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