A poll showed the approval rating to be  .52 ​(​52%). A second poll based on 2500  randomly selected voters showed that 1315 approved of the job the president was doing. Do the results of the second poll indicate that the proportion of voters who approve of the job the president is doing is significantly higher than the original​ level? Explain. Assume the x=0.01 level of significance. Determine the​ P-value for this hypothesis test. ​P-value=

Q: The p-value for a hypothesis test turns out to be 0.01251. At a 2% level of significance, what is…

A: The p-value for a hypothesis test is 0.01251.

Q: Determine the decision criterion for rejectiong the null hypothesis in the given hypothesis test;…

A: The critical value is obtained below: The level of significance=0.05. The degrees of freedom=…

Q: The p-value for a hypothesis test turns out to be 0.08621. At a 5% level of significance, what is…

A: Decision rule : Reject H0 if P-value  <  α

Q: Perform the following hypothesis test of a proportion: HO: p = 0.125 HA: p 0.125 The sample…

A:

Q: The critical boundaries for a hypothesis test are z = +1.96 and -1.96. If the z-score for the sample…

A: Solution: The critical boundaries for a hypothesis test are z = +1.96 and -1.96. Z test statistic or…

Q: The p-value for a hypothesis test turns out to be 0.03197. At a 9% level of significance, what is…

A: The decision rule of the hypothesis testing is as follows: If p-value ≤ α, then reject the null…

Q: news article that you read stated that 55% of voters prefer the Democratic candidate. You think that…

A: We have given that  Sample size n =207 Favorable cases x =116 Sample proportion p^=x/n  =116/207…

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

A:

Q: The p-value for a hypothesis test turns out to be 0.0715. At a 2% level of significance, what is the…

A: Here, the p-value is 0.0715. The level of significance is 0.02.

Q: A result is significant at the 0.01 level. Explain why it must also be significant at the 0.05…

A: 1.   It is needed to elaborate the relation of P-value with level of significance.

Q: 15. The P-value for a hypothesis test is P = 0.033. Do you reject or fail to reject HO when the…

A: given data, p=0.0333α=0.01we have to gave a conclusion for the hypothesis testing.

Q: A poll showed the approval rating to be 0.45 (45%). A second poll based on 2000 randomly selected…

A: Given, The sample proportion is,

Q: A hypothesis test produces a p-value of 1.5%. Which of the following are DEFINITELY true? Check all…

A: Given that, a hypothesis test produces a p-value of 1.5%

Q: A hypothesis test is conducted with a level of significance of  10%  and the resulting  p  value is…

A:

Q: e data to test for independence between Gender and Full or Part-time status. Use a 5% level of…

A:

Q: Use technology to find the P-value for the hypothesis test described below. The claim is that for a…

A: The test statistic is The sample size is The objective is to determine the p-value by using the…

Q: Use technology to find the P-value for the hypothesis test described below. The claim is that for a…

A:

Q: The p-value for a hypothesis test turns out to be 0.05949. At a 9% level of significance, what is…

A: P-value=0.05949and α=0.09

Q: Suppose 225 subjects are treated with a drug that is used to treat pain and  51 of them developed…

A: Given that  Sample size n =225 Favorable cases x =51 Sample proportion p^=x/n  =51/225 =0.2267

Q: In a random sample of males, it was found that 25 write with their left hands and 217 do not. In a…

A: There are two independent samples which are males and females. We have to test whether the rate of…

Q: An online poll asked "Do you believe the Loch Ness monster exists?" Among 20,967 responses, 64% were…

A: Given sample size(n)=20967p^=0.64α=0.10

Q: HW Score: 0%, 0 of 60 pts Question Help For the following hypothesis test, determine the null and…

A:

Q: The critical boundaries for a hypothesis test are z = +1.96 and -1.96. If the z-score for the sample…

A: Decision rule: Denote z as test statistic value and z(α/2) as the critical value. Decision rule…

Q: Suppose 201 subjects are treated with a drug that is used to treat pain and 50 of them developed…

A: The following information has been given: The sample size is n=201. The favorable cases are X=50.

Q: The p-value for a hypothesis test turns out to be 0.01734. At a 6% level of significance, what is…

A: According to the given information, we have The p-value for a hypothesis test turns out to be…

Q: The p-value for a hypothesis test turns out to be 0.09064. At a 5% level of significance, what is…

A: Statistical hypothesis testing is an important method in inferential statistics. It is used to test…

Q: Suppose 248 subjects are treated with a drug that is used to treat pain and 54 of them developed…

A: Given,n=248x=54sample proportion(p^)=xnsample proportion(p^)=54248=0.2177population…

Q: The p-value for a hypothesis test turns out to be 0.07774. At a 9% level of significance, what is…

A: It is given that the The p-value for a hypothesis test turns out to be 0.07774 i.e. P-value =…

Q: 4) A local bakery has determined a probability distribution for the number of cheesecakes it sells…

A: E(X)=∑X.P(X)

Q: The p-value for a hypothesis test turns out to be 0.06787. At a 6% level of significance, what is…

A: It is given that,  The p-value for a hypothesis test turns out to be 0.06787 i.e. P-value= 0.06787…

Q: est the claim that the proportion of people who own cats is smaller than 10% at the 0.025…

A: Given, n=800p^=0.01p=0.10α=0.025 The null and the alternative hypothesis to be tested here is…

Q: suppose a hypothesis test is conducted where the level of significance a= 0.05 and the test results…

A:

Q: The p-value for a hypothesis test turns out to be 0.04836. At a 5% level of significance, what is…

A: It is given that the p-value is 0.04836.

Q: In a study of the accuracy of fast food drive-through orders, one restaurant had 36 orders that were…

A: From the provided information, Sample size (n) = 346 From which 36 orders were not accurate. Sample…

Q: An online poll asked: "Do you believe the Loch Ness monster exists?" Among 20,841 responses, 61% wer…

A: State the hypotheses.

Q: Test the claim that the proportion of people who own cats is larger than 20% at the 0.05…

A:

Q: The critical boundaries for a hypothesis test are z = +1.96 and -1.96. If the z-score for the sample…

A:

Q: Use technology to find the P-value for the hypothesis test described below. The claim is that for a…

A: We want to find P-value

Q: An online poll​ asked: "Do you believe the Loch Ness monster​ exists?" Among 22185 responses,…

A: As per our guidelines we are supposed to answer only 3 subparts of any questions so i am solving…