Find statistical significance and practical significance

Assignment Help Basic Statistics
Reference no: EM13134063

What are the steps listed in my One Sample Hypothesis Testing Lecture for formal hypothesis testing? Explain why the sequence is important. What might happen if the hypothesis test is performed before the researcher has decided on the significance level? What is the difference between statistical significance and practical significance? Can a hypothesis test result be statistically significant and yet practically useless.

Reference no: EM13134063

Questions Cloud

Record of a deferred tax expense : The enacted tax rate increased to 30 percent in Year 2 compared to an enacted rate of 20 percent in the prior year. At December 31, Year 2, the company would record a deferred tax expense of ?
Confidence interval for tungsten content of mined mineral : Tungsten content of the mined mineral. Further mining of the drift would be justified if the grade is above 1.25% W; can we be 95% confident that this is the case?
How many grams of are cah2 needed : How many grams of are CaH2 needed to generate 147L of H2 gas if the pressure of H2 is 827 torr at 20 C?
Provision for imposition of civil liability : From the auditors point of view which of the following is a preferable provision for imposition of civil liability for financial damages?
Find statistical significance and practical significance : What is the difference between statistical significance and practical significance? Can a hypothesis test result be statistically significant and yet practically useless.
Calculate the concentration of ammonium ions : A solution is prepared by dissolving 19.9 g ammonium sulfate in enough water to make 100.0 mL of stock solution. A 15.00 mL sample of this stock solution is added to 59.00 mL of water.
Non-manufacturing fixed costs : George Ltd manufactures two types of coils used in electric motors. The two types are: C20 and D40. They both require plastic and metal. Information for the two products for the month of April is given
Create confidence interval for the proportion of all welders : Construct the 95 percent confidence interval for the proportion of all welders who graduated from a registered welding course.
Calculate the specific heat of iron : A 28.5 g sample of an unknown metal is heated to 95.0C and then dropped into 58.0 g of water in a coffee-cup calorimeter. The temperature of the water rises from 23.5 C to 27.1C.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Determine the point estimate for estimating proportion

A random sample of 4000 U.S. citizens yielded 2190 who are in favor of gun control legislation. Find the point estimate for estimating the proportion of all Americans who are in favor of gun control legislation.

  Computing hypothesis testing-normal distribution

For the statement: The mean amount of Pepsi in cans is at least 12 oz. Express the null hypothesis and the alternative hypothesis in symbolic form.

  Type of p-value in designing a research study

A doctoral student is designing a research study. She is hoping that the results of the study are statistically significant. What type of p-value would she want to obtain? Select one of the following.

  Conclusion of evidence using normal distribution

By using significance level a = .05, and suppose a normal distribution what does evidence conclude?

  Academic approach to statistics problem

In a certain city, 50 percent of the people consider themselves conservative (C), 25 percent consider themselves liberal (L), and 25 percent consider themselves to be independent (I).

  Critical values and identify the rejection regions

Find the critical values and identify the rejection regions. Calculate d and sd. Use the t-test to find the standardized test statistic t. decide whether to reject or fail to reject the null hypothesis.

  Find point estimate of the proportion of the population

What is the point estimate of the proportion of the population of employees who strongly dislike their current work experience?

  Do the results provide good evidence

Give a 99% confidence interval for the proportion of all U.S. adults who attended church or synagogue during the week preceding the poll.

  Statistical difference in driving speeds

You are interested in knowing if there is a statistical difference in driving speeds between Day 1 and Day 10. Which statistical test would be appropriate? Why?

  Probability of sample or average medians

Calculate the probability that the median of the sample or average medians is:

  Find probability when reservations are accepted

Find the probability that when 200 reservations are accepted, there are more passengers showing up than there are seats available. Is the probability of overbooking small enough so that it does no happen very often.

  Evidence to reject the researcher claim

A researcher claims that the average age of people who buy lottery tickets is 70. A sample of 30 is selected and their ages are recorded as shown below. The standard deviation is 16. At alpha = 0.05 is there enough evidence to reject the researche..

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