Computing two tailed test of hypothesis

Assignment Help Basic Statistics
Reference no: EM13113536

In a normal population with sigma=20, a random sample of size n gave X(mean)=56.53. At the 5% significance level, make a two-tailed test of the null hypothesis mu=50, when (a) n=24 (b) n=36

In each case report the P value

Reference no: EM13113536

Questions Cloud

What is the value of b in the regression : A regression of height (X, in inches) on hourly earnings (Y, in dollars), yields the following results: What is the value of b1 in the regression Y = b0 + b1X?
Hypothesis test-independent samples t-test : Ms. Lisa Monnin is the budget director for the New Process Company. She would like to compare the daily travel expenses for the sales staff and the audit staff. She collected the following sample information.
Developing null and alternative hypotheses : Develop null and alternative hypotheses to help the bank determine which option would provide the best incentive to consumers.
Find probability that all selected workers from day shift : How many selections result in all 6 workers coming from the day shift? What is the probability that all 6 selected workers from the day shift?
Computing two tailed test of hypothesis : In a normal population with sigma=20, a random sample of size n gave X(mean)=56.53. At the 5% significance level, make a two-tailed test of the null hypothesis mu=50, when (a) n=24 (b) n=36
What is its final temperature : A 5.0×101 sample of water absorbs 355 of heat.If the water was initially at 25.9, what is its final temperature.
Information regarding hypothesis testing for proportions : A survey of 400 persons showed that 54.3% were in favor of product A. Test whether a majority were in favor of product A using a .05 significance level
Estimate total number of cases sold with standard error : Estimate the total number of cases sold along with the standard error of your estimate. Estimate the average number sold per supermarket, along with the standard error of your estimate.
What is the partial molar volume of the ethanol : At 25 degree celcius, the density of a 50 percent by mass ethanol/water solution is 0.914 g per subic centimetre. Given that the partial molar volume of water in the solution is 17.4 cubic centimeter per mol.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Test the claim that tutoring has an effect on math scores

Using a 0.01 level of significance, test the claim that the tutoring has an effect on the math scores.

  Precision of or narrowing the confidence interval

What do confidence intervals represent? What is the most controllable method of increasing the precision of or narrowing the confidence interval?

  Finding sample correlation coefficients age with dry weight

Find out sample correlation coefficients of (I) age with dry weight, and (2) age with log 10 dry weight. Interpret your results.

  Conduct a marketing experiment

Conduct a marketing experiment in which students are to taste one of two different brands of soft drink

  Instruction using authentic learning

A teacher wants to know if students in her biology class did significantly better on an exam after instruction using authentic learning. The scores pre and post test are listed below. Based on an α = .05, what can the teacher conclude?

  Determination-test for correlation coefficient

What is the relationship between the amount spent per week on food and the size of the family? Do larger families spend more on food?

  Emissions for a kind of car vary by mean

Carbon monoxide (CO) emissions for a certain kind of car vary mean 2.4 g/mi and standard deviation 0.7g/mi. A company has 60 of these cars in its fleet. Let y represent the mean CO level for the companies fleet. Estimate the probability that y is ..

  Determining confidence interval for true population mean

Based on these data, determine the 95 percent confidence interval estimate for true population mean?

  Question on portfolio risk

Portfolio Risk. Who would view the stock of Learning Tower of Pita as a risk reducing investment - the owner of a gambling casino or a successful bankruptcy lawyer? Explain.

  Test of regression coefficient using spss

Fit a linear regression model for bp against sodium. Do you think this is a model with a good fit? Why?

  Hypothesis test for independent sample means

At the .05 significance level, is the number of units produced on the afternoon shift larger?

  Regression equation and correlation coefficient

The following regression equation and correlation coefficient were calculated using minitab for the bivariate data age of men and their weight.

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