2. a) What is type I and Type Il Error in terms of the null hypothesis? b) Give an example of type I and Type II Error

Q: Formulate the appropriate null and alternative hypothesis.

A: Given: μ=555σ=139n=30

Q: If the null hypothesis is rejected at a level of significance of 5%, then in some cases, it could be…

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

Q: What is your variable in this study? State your null hypothesis in words, for this study, and…

A: Given information: No. of observations=15  No. of groups= 03  Groups=Varieties

Q: Suppose that you want to test a null hypothesis that states that Math and Chemistry majors do not…

A: Given information: A null hypothesis needs to be tested that Math and Chemistry majors do not…

Q: Identify the type I error and the type II error that corresponds to the given null hypothesis for a​…

A: Type I error (α): The probability of rejecting the null hypothesis when it is actually true is…

Q: Suppose a professional basketball player storically makes 37% of his three-point field als. After a…

A: Solution: Given information: n= 75 Sample size  x= 36 success  p^=xn=3675=0.48  Sample proportion…

Q: A Type l error is committed when a. a true alternative hypothesis is mistakenly rejected O b. not…

A: In a hypothesis testing, there are two type of errors, Type I error and Type II error.

Q: B. If the National Cancer Institute researchers were incorrect in their conclusion that there is no…

A: Type I error: The type I error if the null hypothesis is rejected when it is actually true. Type II…

Q: In a research report, the term "significant" is used when the null hypothesis is rejected Select…

A: We know that when we said that a test is significant, we always reject the Null Hypothesis  This…

Q: Test the null hypothesis B= 60 against the alternative hypothesis B > 60 at the 0.01 level of…

A: Assuming that part b and c are already completed and regression model has been fitted using…

Q: A type I error could be committed even if the null hypothesis is false O True O False

A: The provided statement is "false" because Type I error refers to rejecting the null hypothesis when…

Q: The probability of rejecting a true null hypothesis is referred to as a Type II error. Select one: O…

A: The probability of rejecting a true null hypothesis is referred to as type II error. Select True or…

Q: g. With which p level-0.05 or 0.01 reject the null hypothesis? Explain.

A: While conducting a Z-test, the 6 steps of hypothesis testing are: i) Identifying the population and…

Q: Suppose that, in a hypothesis test, the null hypothesis is in fact true. a. Is it possible to make a…

A: Type I error:Probability of rejecting the null hypothesis when it is actually true.Type II…

Q: The strength of evidence in support of a null hypothesis is measured by a) Z-score b) Type 1 error…

A: We have to find correct answer for hypothesis...

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: Suppose a researcher comes up with a new drug that in fact cures AIDS. She assigns some AIDS…

A: A researcher finds a new drug which will cure AIDS. To ensure this she tests H0 : the new drug has…

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: The p-value for a left-tail hypothesis test on μ is determined to be .17. Given the .05 level of…

A: The p-value for a left-tail hypothesis test on μ is determined to be 0.17.

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: pe II error represent the possibility that your rejection of a null hypothesis was incorrec

A: In hypothesis testing, a type I error occurs when the null hypothesis (Ho) is rejected when it is…

Q: If you decided to use a one-tailed test and failed to reject the nul hypothesis, but found that the…

A: One-tailed test: It is a test used in testing of hypothesis. It indicates the chances of effect in…

Q: A type 1 error occurs when a treatment has an effect but the decision is to fail to reject the null…

A: Given : A type 1 error occurs when a treatment has an effect but the decision is to fail to reject…

Q: Why is "Ho: "M1 = M2" not a proper null hypothesis?

A: In general the null hypothesis states that there is no significant difference between M1 and M2.

Q: In a hypothesis test, the likelihood of rejecting the null hypothesis is independent of the sample…

A: Introduction: In a hypothesis testing problem, the decision regarding rejection/ failure of…

Q: 9.2 Discuss in your own words the errors that can be made in hypothesis testing. а. What is a type I…

A: a) When the Null Hypothesis is true and when we reject it, in that case we have committed a type 1…

Q: A school principal claims that 40% of the students of the school are dissatisfied by the community…

A: Given : Claim : 40% of the students of the school are dissatisfied by the community.  The sample…

Q: Discuss the circumstances under which a Bayesian hypothesis testing approach using the Bayes factor…

A: A Bayesian approach would offer some interesting possibilities for both individual psychology…

Q: Suppose that, in a hypothesis test, the null hypothesis is in fact false. a. Is it possible to make…

A: Type I error:Probability of rejecting the null hypothesis when it is actually true.Type II…

Q: A Type Il error is defined as Banco de palabras: not rejecting a false null hypothesis. rejecting a…

A: Type II Error: The type II error is given below:

Q: Does this data provide statistically significant evidence that there is a difference in the…

A: For Hispanic adults, sample size n1 = 640 and sample proportion is 4.6% = 0.046 For white adults,…

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: the null hypothesis as a result of the statistical testing, when in fact the null hypothesis is

A: Type 1  error is denoted by alpha .  Where  alpha or α is the significance level. Type 2 error is…

Q: Four drug companies are studying the effect of their new drugs. In its clinical trials, company A…

A: 1) False, Company B is more likely to reject null hypothesis Because significance level is high 2)…

Q: Suppose you are asked to conduct a two-tailed hypothesis test on the population mean. What type of…

A: Here we want to conduct two tailed hypothesis test for mean

Q: 15. The error of rejecting a true null hypothesis is . committed when not enough information is…

A: Type I error : P(Reject Ho | Ho is true)

Q: When the null hypothesis is not rejected, it is possible a Type I error has occurred. not possible a…

A: Given that the null hypothesis is not rejected.

Q: A type of error that incorrectly rejects the null hypothesis a.Type 1 error b.Type Il error…

A:

Q: What is the z-value for a two-sided hypothesis test on a population mean when a=.05?   1. 1.645…

A:

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

A: We want to tell you when hypothesis is significant

Q: In Malaysia legal system, a defendant is presumed innocent until proven guilty. Consider a null…

A: Consider a null hypothesis, H0, that a defendant is innocent an alternative hypothesis, H1, that the…

Q: 29. What is your conclusion? Do you reject the null hypothesis or fail to reject the null…

A: 29) The D score is obtained by finding the difference between pain before and pain after. That is…

Q: The Consumers Risk (B) is defined as a Type II error and occurs when we accept the Null Hypothesis…

A: Type II error is that type of error that occurs when the null hypothesis is accepted even though it…

Q: You wanted to know whether eating fatty foods is related to obesity. a) Formulate your null and…

A: The null hypo. is a statistical statement stating no relationship between the observed and measured…

Q: If a researcher rejects the null hypothesis when conducting a hypothesis test, it means that the…

A: Alternate hypothesis is the claim made by researcher   If the researcher rejects the null…

Q: develop a research question that can be addressed with the dependent-samples t test, making sure to…

A:

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…

2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.