Assume that the significance level

Assignment Help Applied Statistics
Reference no: EM13851642

Assume that the significance level is α=0.05. Use the given information to find the P-value and the critical value(s). The test statistic of z=1.62 is obtained when testing the claim that p>0.7.

P-value equals =

The critical value(s) is/are =

 

 

Reference no: EM13851642

Questions Cloud

Determine the meaning of a score on a norm-referenced : How does a researcher determine the meaning of a score on a norm-referenced test such as an IQ test? Why is the use of standardized scores such as z-scores of value to researchers seeking to interpret test results? How might a researcher use a norm-r..
Findand interpret : Suppose that at a blood drive a total of n = 300 participants donate blood, and the blood type for each donor is recorded.  A "universal" donor is one who has a blood type of O negative. Though their goal was to have at least 30 universal donors duri..
Describe the disadvantages of a centralized environment : ensure that the new help desk will be able to handle requests and problems from users at any time of the day; this will play an important part in the structure of the help desk. You also have the understanding that the executive management is keen..
Estimate the standard deviation : How do the shapes of the t distribution and the z distribution differ?  Why do you think we need to use a different distribution when the sample size is small and we have to estimate the standard deviation?
Assume that the significance level : Assume that the significance level is α=0.05. Use the given information to find the P-value and the critical value(s). The test statistic of z=1.62 is obtained when testing the claim that p>0.7. P-value equals =
Calculate the sample size needed : 1. Calculate the sample size needed given these factors: one-tailed t-test with two independent groups of equal size small effect size (see Piasta, S.B., & Justice, L.M., 2010) alpha =.05
Define the random variable x : A.  In a recent sample of 84 used car sales costs, the sample mean was $6,425 with a standard deviation of $3,156. Assume the underlying distribution is approximately normal. a. Which distribution should you use for this problem? Explain your choice...
What is the pressure drop across the pipe : what is the pressure drop across the pipe? what is the shear stress exerted on the pipe boundary? what is the shear velocity? what is the darcy friction factor?
Write a research paper on net-neutrality regulations : whether or not net-neutrality regulations will hinder competition and innovative growth. 5-7 pages. 10 sources (2 online, 2 book, 2 database and at least 2 of these: a Ted Talk, a documentary, an interview, a blog by an expert, a subject specific..

Reviews

Write a Review

Applied Statistics Questions & Answers

  Which of the following statements are true probabilities can

Which of the following statements are true? A.Probabilities can be any positive value. B.Probabilities must be nonnegative. C.Probabilities must be negative. D.Probabilities can either be positive or negative.

  Let x be the sample mean of a random sample of size n

Let X be the sample mean of a random sample of size n from a uniform distributionon the interval [0, b], and let bb = 2X be an estimator of the upper endpoint b.(a) Demonstrate that bb is an unbiased estimator of b, and find the variance of th..

  Describe the assumptions of normality

Describe the assumptions of normality and homogeneity of variance. When these assumptions are violated, what are your options? Are there cases in which the assumptions may technically be violated, yet have no impact on your intended analyses? Explain

  Find the z scores for which the distributions area lies wit

Find the z-scores for which 88% of the distributions area lies within -z and z. The z-scores are ?

  A basketball player who consistently makes 23% of free throw

A basketball player who consistently makes 23% of free throws

  Derive the expression for the pdf of x

Derive the expression for the PDF of X

  Regular exercise reduces the risk of a heart attack.

Example Study 2: Another researcher finds 4,000 men over 40 who have not had heart attacks and are willing to participate in a study. She assigns 2,000 of them into a regular program of supervised exercise. The other 2,000 continued their usual..

  Find the best-predicted value of y given

Find the best-predicted value of y given

  Use the approximate method

Use the approximate method

  Suppose that the lifetimes of tires of a certain brand are

Suppose that the lifetimes of tires of a certain brand are normally distributed with a mean of 75,000 miles and a standard deviation of σ miles. These tires come with a 60,000-mile warranty. The manufacturer of the tires can adjust σ during the produ..

  Measure the amount of dust in the mine atmosphere

5. A laboratory weights filters from a coal mine to measure the amount of dust in the mine atmosphere. Repeated measurements of the weight of dust on the same filter has a standard deviation of σ = 0.08 milligram (mg) and mean 123 mg.

  Variable x is given by a normal random variable with mean

Variable X is given by a Normal Random variable with mean 4 and variance 9. Variable Y is given by a Uniform Random variable over the segment from 2 to 4. Variable Z is the sum of the roll of two fair dice. (HINT: assume that the Expected value of a ..

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