The critical-region(s) for a hypothesis test consists of sample outcomes that are very unlikely to occur if the null hypothesis is true. True False

Q: .Is this a one-tailed or two-talled test The alternative hypothesis is The critical value is

A: Test is that whether there is a difference in proportion of voters in districts A and B who are in…

Q: In a hypothesis test, the test statistic computed from the sample data is considered extreme or…

A: A test statistic is a random variable that is calculated from sample data and used in a hypothesis…

Q: What are the hypotheses for this test ? Use technology to determine the F statistic and p-value…

A: The following table is obtained:   Group 1 = Small  Sedan  Group 2 = Medium Sedan Group 3 = Large…

Q: Differentiate the Type 1 and Type 2 Error in doing Hypothesis Testing.

A: We want to tell you type 1 error and type 2 error

Q: Identify the P-value for this hypothesis test.

A: Here Given , sample size =293 x=128 sample proportion = p^ = 128293 = 0.4369 alpha  = 0.05

Q: What does it mean to find significant results from a hypothesis test?

A: Two types of hypothesis :  1  :  null hypothesis 2  :  alternative hypothesis

Q: Be able to determine the null hypothesis from a description of an experiment?

A: Hypothesis: Hypothesis is an assumption about the parameter of the population which will be made on…

Q: e p value used to reach a conclusion in a hypothesis testing pro

A: The p-value is a conditional probability of getting a test statistic as extreme or more extreme than…

Q: What are the assumptions for using a two-sample independent t-test?

A: Given : Two-sample independent t-test :    This test is also called as two-sample t-test     This…

Q: 3. In the case of hypothesis testing of one sample (for large samples): If α value is greater than…

A: Solution

Q: Suppose that you want to conduct a left-tailed hypothesis test at the 5% significance level. How…

A: The level of significance is 5%. The test is a left-tailed test.

Q: Define the P-value of a hypothesis test.

A: P-value: P-value is the probability of obtaining a test statistic value which is more extreme than…

Q: The type II error is also known as false positive or false alarm. Wrongfully failing to reject the…

A:

Q: Be able to state the null hypothesis for both one-tailed and two-tailed tests?

A:

Q: What is the formula for a 2-sample hypothesis test?

A:

Q: The probability of rejecting a false null hypothesis is called?

A: We know that the power is defined as  Power:  Power is the probability of the rejecting the null…

Q: what does failing to rejectthe null hypothesis mean?

A: First, it is possible that the effect truly doesn’t exist in the population, which is why the…

Q: What is the critical value for a one-tailed hypothesis test in which a null hypothesis is tested at…

A:

Q: When is it valid to use a one-tailed test? What is the advantage of a one-tailed test? Give an…

A: When the claim of the test is to test whether one quantity is more or less than the other quantity,…

Q: If a hypothesis is not rejected at the 5% level of significance, it will also not be rejected at the…

A: Concept of p-value: The p-value in hypothesis testing is the probability of obtaining a test…

Q: State two reasons why including the P-value is prudent when you are reporting the results of a…

A:

Q: If your claim is in the alternative hypothesis and you fail to reject the null hypothesis, then your…

A: Given data: claim = alternative hypothesis and we fail to reject the null hypothesis, To decide:…

Q: the non-directional null hypothesis? What is the alternative hypothesis?

A: Hypothesis in statistics are the statements which need to be tested on the basis of the observed…

Q: A p-value indicates the probability of a particular sample statistic occurring (or a more extreme…

A: We have to find that given statement is true or false...

Q: In a study of 796 randomly selected medical malpractice lawsuits, it was found that 519 of them were…

A: Null and alternate hypotheses: The investigator is specifically interested to test whether most of…

Q: If the null hypothesis is not rejected at the 5% level of significance, then A it will never be…

A: Hypothesis is  always rejected for p value less than alspha.

Q: It states that the observed data is not significantly different from the expected data. O Null…

A: Given that  Statement : The observed data is not significantly different from the expected data.…

Q: What are factors to consider in choosing in a P-value for a hypothesis test?

A: Answer:-  There are 3 factors need to consider in choosing a P value.

Q: A rejection region (or a critical region) is the region that specifies the values of the observed…

A: Given statement is TRUE

Q: provide an example of hypothesis testing using the t score test

A:

Q: The type II error is also known as false positive or false alarm. Wrongfully failing to reject the…

A: Here use type 2 error definition

Q: The critical region consists of those sample means that are unlikely to occur by chance if the null…

A:

Q: If the calculated test statistic falls in the rejection region, the statistical action is to…

A: Hypothesis Testing- In the domain of statistics, in order to analyze a large population data set, a…

Q: What are examples of a null and research hypothesis?

A: In a hypothesis test, Null and Alternate hypothesis are mutually exclusive ( both can not be true at…

Q: State why a non-significant outcome does not mean the null hypothesis is probably true?

A:

Q: Which element of a test of a hypothesis is used to decide whether to reject the null hypothesis in…

A: Know that  Level of significance =alpha  Null and alternative hypothesis is denoted by H0 and H1.

Q: What are the two types of hypotheses used in a hypothesis test? How are they related? What are the…

A:

Q: If you have do not have enough evidence to reject the null hypothesis at the 5% significance level…

A: We have given that  Do not have enough evidence to reject the null hypothesis H0 at the 5% level of…

Q: What does the decision to retain null hypothesis implies?

A:

Q: How do you determine whether or not the paired t test is appropriate for a two-sample hypothesis?

A:

Q: Assume that a simple random sample has been selected from a normally distributed population.…

A: here from given information , sample mean  = 42.4 year  sample standard deviation  = 31.5 year  n=…

Q: A hypothesis test result is considered to be statistically significant only when?

A: We want to tell you when hypothesis is significant

Q: Why would it make sense to call the hypothesis test as a marginal or partial test?

A: It is an important part of statistics . It is widely used .

Q: What is Importance of the Standard Error in hypothesis testing?

A: The standard error (SE) of a statistic (usually an estimate of a parameter) is the standard…

Q: If the null hypothesis is rejected in hypothesis testing, O the alternative hypothesis is true. O…

A: See the solution

Q: what is the nully hypothesis and alternative hypothesis

A: Test is that whether there is a significant relationship between a person's age and the number of…

Q: How do I find the p-value for a two-tailed hypothesis test?

A:

Q: If a hypothesis test produces a z-score in the critical region, what decision should be made? a.…

A: Given that a hypothesis test produces a z-score in the critical region.

Q: WHen writing a null hypothesis for a two sample t test. Do you write U1 = U2 or U1 - U2 = 0? Or do…

A: WHen writing a null hypothesis for a two sample t test. Do you write U1 = U2 or U1 - U2 = 0? Or do…

Q: What are the two types of hypotheses used in a hypothesis test? How are they related? What are the…

A: Given : Here we have to determine the two types of hypotheses used in a hypothesis test.