When is a researcher at risk of making a type 2 error?   whenever H0 is rejected  whenever H1 is rejected  whenever H0 fails to reject  the risk of a type 2 is independent of the decision from a hypothesis test

Q: In a hypothesis test with a = 0.05 the p-value is calculated to be 0.02. What decision should be…

A: we have find  decision.

Q: State whether the null hypothesis should be rejected on the basis of the given P-value:…

A:

Q: A newsletter publisher believes that 25%of their readers own a personal computer. Is there…

A: Given that  A newsletter publisher believes that 25%of their readers own a personal computer. Level…

Q: What is meant when we say that a hypothesis test is a. exact?b. approximately correct?

A:

Q: if the null hypothesis should be rejected and researchers reject it they have committed.? which of…

A: Type I error: The type I error is the rejection of the null hypothesis when it is actually true.…

Q: A decision to reject the null hypothesis means you have demonstrated that the treatment has no…

A: Given problem Given that   A decision to reject the null hypothesis means you have demonstrated…

Q: A hypothesis test is conducted with a level of significance of 1% and the resulting p value is…

A:

Q: In a two-tailed hypothesis test, the test statistic is determined to be z = -2.5. The p-value for…

A: We have to find p value.

Q: When a null hypothesis can be rejected by an extreme result in one direction only, a two-tail test…

A: When a null hypothesis can be rejected by an extreme result in one direction only that means we will…

Q: Researcher A uses a sample of n = 100 for their hypothesis test while Researcher B uses a sample of…

A: Standard error is the error due to random sampling. Population is the set of all objects of…

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: Can you give me an example on how to write the null and alternative hypotheses and determine if each…

A: Basically, null hypothesis is the statement of a population parameter such as mean, proportion,…

Q: Suppose the null hypothesis, H0, is: a patient is not sick. State the Null and Alternative…

A: The test hypotheses are given below: Null hypothesis: H0: A patient is not sick Alternative…

Q: A hospital directors told that 54% of the merchant seaman visitors I ensured the director ones to…

A: The conditions for the proportion test for sample size n and the true population proportion p0,The…

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

A:

Q: Which of the following is an accurate definition of a type 2 error? rejecting a false null…

A: type 2 error :  type II error is the non-rejection of a false null hypothesis

Q: If a null hypothesis is rejected at the 0.05 level of significance, it must be rejected at the 0.01…

A: Statement: " If a null hypothesis is rejected at the 0.05 level of significance, it must be rejected…

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: If the level of significance for a test for independency was 5% and the p-value was 0.03, what would…

A: Given,   P-value = 0.03 Level of significance = 0.05   The objective is to find the conclusion.

Q: The currently used medicine is successful for 26% of patients. A new experimental medication is…

A: sample size(n)=500no.of patients successful for new experimental medication (X)=140sample proportion…

Q: No error is committed when the null hypothesis is rejected when it is false.   True False

A: In hypothesis testing, type I error is the incorrect rejection of the null hypothesis when the null…

Q: Norman is performing a hypothesis test in which he rejects the null hypothesis at a significance…

A: Given that  Norman is performing a hypothesis test in which he rejects the null hypothesis H0. Level…

Q: Find the P-value for a left-tailed hypothesis test with a test statistic of z= - 1.79. Decide…

A: The test statistic is given by Z = -1.79 Level of significance = 0.10

Q: The test statistic of z = 2.47 is obtained when testing the claim that p > 0.8. Identify the…

A: Given, The test statistic of z = 2.47 is obtained when testing the claim that p > 0.8. The…

Q: If I conduct a hypothesis testing with Type I error set at 0.05 and a resulting p-value of 0.3, what…

A: Type I error: The type I error occurs when rejecting the null hypothesis if it is true. It is also…

Q: If p- value is greater than alfa, the null hypothesis is not rejected. True O False

A: The p-value measures the probability of getting a more extreme value than the one you got from the…

Q: When the p-value is greater than alpha, the conclusion for the hypothesis test is to reject the null…

A:

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: A health organization has been concerned with the birth weights of newborns. They offered a program…

A: H0: mean = 5.75 Ha: mean > 5.75

Q: Explain whether or not rejecting the null hypothesis makes the alternative hypothesis true and why.…

A: 1). It is known that null and alternative hypotheses are contradicting (opposite to) each other.…

Q: A software company advertises that its software can improve students' grades by at least 15%.  One…

A: Type I error has occurred, when the null hypothesis is rejected while the null hypothesis is true.…

Q: null hypothesis p  0.90 against the alternative hypothesis p  0.90 at the 0.05 level of…

A:

Q: 15. . When a p-value is high, this means there is strong evidence against the ull hypothesis А. Tre…

A: Since you have asked multiple questions, we will solve the first question for you . If  you want a…

Q: The test statistic of z=1.50 is obtained when testing the claim that p≠0.427. Identify the…

A: GivenTest statistic(z)=1.50claim is p≠0.427

Q: When the null hypothesis is true, the F test statistic is close to                           ["",…

A: H0: Null Hypothesis F test statistic (F)=Variance of Dataset1Variance of Dataset2

Q: the parameter value for the null hypothesis is what?

A: The null hypothesis states that the parameter is equal to the hypothesized value, against the…

Q: Norman is performing a hypothesis test in which he rejects the null hypothesis at a significance…

A: Norman is performing a hypothesis test in which he rejects the null hypothesis at a significance…

Q: In a two-tailed hypothesis test, the test statistic is determined to be z = 2.8. Find the p-value…

A: We have calculated statistic Z=2.8. Considering null distribution be N(0,1), we have following…

Q: Suppose a hypothesis test was performed with a level of significance of 0.05. Then if the null…

A: Level of significance is the type 1 error which is rejecting the true Null Hypothesis.  So here the…

Q: If the decision rule for a one-tailed test of hypothesis is given as: Reject Ho if z<-2.36. What…

A: The decision rule for a one-tailed test of hypothesis is given as: Reject Ho if z<-2.36 The value…

Q: The test statistic of z=0.56 is obtained when testing the claim that p>0.8. a. Identify the…

A: Given,   Test Statistic: z =0.56   Claim: p>0.8

Q: If a hypothesis test rejects the null hypothesis test at a = 0.05 will it also always reject the…

A: If the p-value of a hypothesis test is less than or equal to the level of significance, then reject…

Q: What does failing to reject a null hypothesis imply?

A: Given,         What does failing to reject a null hypothesis imply?

Q: The test statistic of z=1.75 is obtained when testing the claim that p>0.8. a. Identify the…

A:

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

A: The type 1 error means that the rejecting the null hypothesis when it is true.

Q: Find the P-value for a left-tailed hypothesis test with a test statistic of z = - 1.68. Decide…

A: It is given that, the test is a left-tailed hypothesis (One-tailed test) with Z=-1.68 So, P-value is…

Q: What are the null hypothesis (H,) and the alternative hypothesis (H,) that should be used for the…

A:

Q: P value < a/2, on a two-tailed hypothesis test would lead to rejecting H,

A: