9. A level of significance of 10 % meansGroup of answer choices●There is a 10 % chance that we arewrongThere is a 10 % chance we will bewrong if we fail to reject the nullhypothesisThere is a 10 % chance we will bewrong if we reject the null hypothesisThere is a 10 % chance you will get an Aon the test

In statistics we have two types of errors which are, Type I error : Rejecting the null hypothesis…

Answered: 9. A level of significance of 10% means…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Please help!
In a(n) ________ test, the null hypothesis should be rejected when the test value is in either of the two critical regions. Explain.
Suppose a hypothesis test was performed with a level of significance of 0.05. Then if the null hypothesis is actually true, then there is a 5% chance that the researcher will end up rejecting the null hypothesis in error. True False
If you reject the null hypothesis ar the 5% significance level would you reject the null hypothesis at the 3% significance level? Group of answer choices yes no not enough information to determine.
37. Suppose you repeated your hypothesis test over and over again with many different data sets. Which of the following statements is true? Group of answer choices The significance levels would change but the p-values would stay the same. The significance level would stay the same and so would the p-values. The significance level would stay the same but the p-values would change. The significance levels would change and so would the p-values. (THANK U)
In doing a test of statistical significance, you will have made a Type I error if you concludethat there is no difference between means in the population when in fact there is a difference the absence of a difference in the samples is due to chance any difference in the samples is due to chance there is a difference between means in the population when in fact there is no difference
Can you give a specific example of possible wording of both a null and research hypothesis?
A university has decided to introduce the use of plus and minus grading as long as there is evidence that 60% of the faculty is in support of this change. Write an appropriate null hypothesis and alternate hypothesis to test if the proportion is greater than 60%.
Again, you play the game where Bianca rolls a die and wins if it shows a 1 or a 2, otherwise you win. Out of 7 games, how many times does she have to win at least so that you would reject the null hypothesis (that the die is fair, results random) at the 5%-significance level? You can look up numbers in the Binomial table, but remember that one number is not enough. You can also use the Online Calculator, but then you need to convert the answer to percent.
30. A researcher had originally planned to collect a sample of size 200, and conduct a hypothesis test with a 5% significance level. Now, she has decided instead to collect a sample of size 300, and conduct a hypothesis test with a 1% significance level. How will this change affect the A probabilities of type I and type 2 error? The probability of type 1 error will decrease, and the probability of type 2 error will increase. The probability of both type 1 and type 2 error will decrease. The probability of type 1 error will decrease, but it's impossible to determine whether the probability of type 2 error will increase or decrease. The probability of type 1 error will increase, and the probability of type 2 error will decrease. The probability of type 2 error will decrease, but it's impossible to determine whether the probability of type 1 error will increase or decrease.
WHen writing a null hypothesis for a two sample t test. Do you write U1 = U2 or U1 - U2 = 0? Or do both of them work?

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