-Find the correct null hypothesis and for each correct alternative hypothesis 1. Suppose a pollster claims that the percentage of the population registering Democrat is .55 but you believe the percentage is actually less than that. What are your null and alternative hypotheses?
Q: I’m testing the claim that a population exceeds .62, the null hypothesis is H0, what is it?
A: H0 = Null Hypothesis H1 = Alternative Hypothesis
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Q: -Find the correct null hypothesis and for each correct alternative hypothesis 6. You want to test…
A: Given : Claim : A higher percentage of males who are Democrat than females who are Democrat.
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Q: A sample of n = 40 individuals is selected from a population with µ = 30, and a treatment is…
A: A sample of n = 40 individuals is selected from a population with µ = 30, and a treatment is…
Q: |-Find the correct null hypothesis and for each correct alternative hypothesis 2. Suppose a pizza…
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Q: 4. Suppose a political candidate claims the percentage of uninsured drivers is 30 percent, but you…
A: Rule of hypothesis : Null Hypothesis contain 'less than or equal to ( <= )' , 'greater than or…
Q: A decade-old study found that the proportion of high school seniors who felt that "getting rich" was…
A: From the provided information, The proportion of high school seniors who felt that “getting rich”…
Q: Traditionally in hypothesis testing, the null hypothesis represents the "status quo" which will be…
A: here given , Traditionally in hypothesis testing, the null hypothesis represents the "status quo"…
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A: Given that Sample sizes n1=687 , n2=737 Favorable cases x1=361 , x2=435 NOTE:- According to…
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Q: -Find the correct null hypothesis and for each correct alternative hypothesis 3. Suppose you hear a…
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Q: has recently been claimed that 25% of adults consider spring to be their favorite season of the…
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Q: -Find the correct null hypothesis and for each correct alternative hypothesis 7. Suppose you hear a…
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Q: A study done on a marriage counseling course showed that the proportion of couples for which the…
A: Claim:The proportion of couples for which the communicationprogram can prevent divorce is less than…
Q: A presidential candidate claims that the proportion of college students who are registered to vote…
A: Claim : The proportion of college students who are registered to vote in the upcoming election is at…
Q: It has recently been claimed that 25% of adults consider spring to be their favorite season of the…
A: From the provided information, Population proportion (p) = 0.25 A researcher is skeptical of this…
Q: Traditionally in hypothesis testing, the null hypothesis represents the "status quo" which will be…
A: Traditionally in hypothesis testing, the null hypothesis represents the "status quo" which will be…
Q: 20. Which of the following is a null hypothesis? a. Pregnant women who drink cranberry juice…
A: Given that Following statements a. Pregnant women who drink cranberry juice will have lower urine…
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Q: A presidential candidate claims that the proportion of college students who are registered to vote…
A: Claim : proportion of college students who are registered to vote In the upcoming election is at…
Q: -Find the correct null hypothesis and for each correct alternative hypothesis 5. You want to test…
A: Null hypothesis: Null hypothesis is a nullified statement. In other words, it is a statement…
Q: The proportion of residents in a community who recycle has traditionally been 65%. A policy maker…
A: The proportion of residents in a community who recycle has traditionally been 65%. A policy maker…
Q: A decade-old study found that the proportion of high school seniors who felt that "getting rich" was…
A: Given, Claim: Suppose that we have reason to believe that this proportion has changed, and we wish…
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Q: Economists theorize that the recent recession has affected men more than women because men typically…
A: From the provided information,
Q: 3. A sample of n=25 individuals is selected from a population with μ=80, and a treatment is…
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Q: A study found that 13% of Americans have seen or sensed the presence of an angel. A contingent…
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Q: A poll reported that 32% of 195 Canadians between the ages of 25 and 29 had started saving money for…
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Q: 19. An internet provider claims 80% of user have netflix on their tablets. You doubt this claim,…
A: A. The following null and alternative hypotheses need to be tested: Ho: p = 0.80Ho:p=0.80 Ha: p…
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Q: A hospital claims that the proportion of full-term babies born in the hospital who weigh less than…
A: null hypothesis H0: p=0.42 i. e. proportion of full-term babies, born in the hospital who weigh less…
Q: P value < a/2, on a two-tailed hypothesis test would lead to rejecting H,
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A: Types of errors: Rejecting a true null hypothesis is called a Type I error. Failing to reject a…
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- A certain university claims that for the last school year the proportion of students who were not able to earn a college diploma is at most 25%. The claim is found in the alternative hypothesis. Is this true or false? What is the null hypothesis?What is the alternative hypothesis?A recent study suggested that 81% of senior citizens take at least one prescription medication. Amelia is a nurse at a large hospital who would like to know whether the percentage is the same for senior citizen patients who go to her hospital. She randomly selects 59 senior citizens patients who were treated at the hospital and finds that 49 of them take at least one prescription medication. What are the null and alternative hypotheses for this hypothesis test? Select the correct answer below: {H0:p=0.81Ha:p>0.81 {H0:p≠0.81Ha:p=0.81 {H0:p=0.81Ha:p<0.81 {H0:p=0.81Ha:p≠0.81For the given scenario, determine the type of error that was made, if any. (Hint: Begin by determining the null and alternative hypotheses.) A pharmaceutical company claims only 2% as the percentage of people taking a particular drug that experience significant side effects. One researcher claims that the percentage of people taking a particular drug that experience significant side effects is less than 2%. The researcher conducts a hypothesis test and fails to reject the null hypothesis. Assume that in reality, the percentage of people taking a particular drug that experience significant side effects is 0.5%. Was an error made? If so, what type?
- A brokerage firm is curious about the proportion of clients who have high-risk stocks in their stock portfolio. Let the proportion of clients who have high-risk stocks be p. If the brokerage firm wants to know if the proportion of clients who have high-risk stocks is less than 15%, what are the null and alternative hypotheses?A sample of n = 40 individuals is selected from a population with µ = 30, and a treatment is administered to the sample. What is expected if the treatment has an effect? a. The sample mean should be very different from 30 and should lead you to reject the null hypothesis. b. The sample mean should be very different from 30 and should lead you to fail to reject the null hypothesis. c. The sample mean should be close to 30 and should lead you to reject the null hypothesis. d. The sample mean should be close 30 and should lead you to fail to reject the null hypothesis.Q3. If the null hypothesis is not rejected when the null hypothesis is in error, what type of error, if any, has been made?
- A study done on a marriage counseling course showed that the proportion of couples for which the communication program can prevent divorce is 79%. Suppose we have strong reason to believe the proportion is less than 79%, and we carry out a hypothesis test. State the null hypothesis H0 and the alternative hypothesis H1 that we would use for this test. 1. Ho: 2. H1:A study found that 13% of Americans have seen or sensed the presence of an angel. A contingent doubts that the percent is really that high. It conducts its own survey. Out of 76 Americans surveyed, only two had seen or sensed the presence of an angel. As a result of the contingent's survey, would you agree with the study? Will you reject the null hypothesis or not?A decade-old study found that the proportion of high school seniors who felt that "getting rich" was an important personal goal was 71%. Suppose that we have reason to believe that this proportion has changed, and we wish to carry out a hypothesis test to see if our belief can be supported. State the null hypothesis H0 and the alternative hypothesis H1 that we would use for this test.
- A sample of n = 25 individuals is selected from a population with ? = 80 and a treatment is administered to the sample. If the treatment has no effect, then the sample mean should be one of the following. A. very different from 80 and should lead you to reject the null hypothesis B. close to 80 and should lead you to fail to reject the null hypothesis C. very different from 80 and should lead you to fail to reject the null hypothesis D. close to 80 and should lead you to reject the null hypothesisSuppose a consumer group suspects that the proportion of households that have three or more cell phones is 0.37. A cell phone company has reason to believe that the proportion is not 0.37. Before they start a big advertising campaign, they conduct a hypothesis test. Their marketing people survey 103 households with the result that 82 of the households have three or more cell phones. What is the test statistics to test the Null hypothesis H0 : p = 0.37 against the alternative, Ha : p ≠ 0.37?The mathematics department at one university reports that the failure rate for College Algebra is no more than 35% in any given semester. A group of students believes the rate is higher, and they decided to use a hypothesis test to see if they are correct. Based on the sample they obtain, they decided to reject the null hypothesis. If, in reality, the failure rate is 34%, did the students make an error? If so, what type?Show your work
