An online poll​ asked: "Do you believe the Loch Ness monster​ exists?" Among 22 comma 03322,033 ​responses, 6767​% were​ "yes." Use a 0.010.01 significance level to test the claim that most people believe that the Loch Ness monster exists. How is the conclusion affected by the fact that Internet users who saw the question could decide whether to​ respond? Identify the null and alternative hypotheses for this test. Choose the correct answer below.     A. Upper H 0H0​: pequals=0.50.5 Upper H 1H1​: pnot equals≠0.50.5   B. Upper H 0H0​: pequals=0.50.5 Upper H 1H1​: pgreater than>0.50.5   C. Upper H 0H0​: pgreater than>0.50.5 Upper H 1H1​: pequals=0.50.5   D. Upper H 0H0​: pequals=0.50.5 Upper H 1H1​: pless than<0.5

Q: In a recent​ poll, 810 adults were asked to identify their favorite seat when they​ fly, and 495 of…

A: Givenn=810p=495p^=xn=495810=0.611p=0.5α=0.01

Q: An online poll asked: "Do you believe the Loch Ness monster exists?" Among 22,273 responses, 62%…

A: The population proportion is studied by taking samples from the population and comparing the sample…

Q: Suppose 234 subjects are treated with a drug that is used to treat pain and 55 of them developed…

A: Here, the claim of the test is that more than 20% of users develop nausea. This is representing in…

Q: A random sample of 845 births included 435 boys. Use a 0.10 significance level to test the claim…

A: given data n = 845x = 435p^ = xn = 435845 = 0.51claim:p=0.505

Q: Identify the null and alternative hypotheses for this test. Choose the correct answer below.

A: Here Given  Sample size=n=212 X=54 Claim-More than 20 % of user develop nausea.

Q: In a program designed to help patients stop smoking, 216 patients were given sustained care, and…

A:

Q: Suppose 212 subjects are treated with a drug that is used to treat pain and 52 of them developed…

A: Correct answer: Option (B)

Q: Only about 18% of all people can wiggle their ears. Is this percent higher for millionaires? Of the…

A: a. It is observed that the test is one prop Z test. b. Hypotheses: Let p be the proportion of…

Q: Suppose 204 subjects are treated with a drug that is used to treat pain and 55 of them developed…

A:

Q: A random sample of 872 births included 428 boys. Use a 0.05 significance level to test the claim…

A: Sample size, n=872 No. of boys in the births, x=428 α=0.05

Q: A random sample of 846 births included 433 boys. Use a 0.01 significance level to test the claim…

A: We have given that  Hypothesized population proportion = 0.515 Favourable cases=433  Sample size =…

Q: A random sample of 868 births included 427 boys. Use a 0.10 significance level to test the claim…

A: Here we need to find the test statistic for the given two tailed hypothesis test. Given the sample…

Q: Suppose 208 subjects are treated with a drug that is used to treat pain and 50 of them developed…

A: sample size(n)=208x=50sample proportion(p^)=xn=50208≅0.2404significance level(α)=0.05

Q: Suppose that in a random selection of 100 colored candies, 26% of them are blue. The candy company…

A: Solution

Q: Suppose that in a random selection of 100colored​ candies, 29​% of them are blue. The candy company…

A: Claim: percentage of blue candies is equal to 26​% Null Hypothesis: H0:p=0.26 The percentage of blue…

Q: White Results from a civil servant exam are shown in the table to the right. Is there sufficient…

A: The question is about categorical data analysis Given :

Q: A random sample of 847 births included 428 boys. Use a 0.01 significance level to test the claim…

A: Denote p as the true proportion of new born babies, who are boys.

Q: An online poll​ asked: "Do you believe the Loch Ness monster​ exists?" Among 20 comma 257…

A:

Q: BELEID Identify the null and alternative hypotheses for this test. Choose the correct answer below.…

A: Given data   sample size, n =100 population proportion,p= 0.24 Significance…

Q: A random sample of 876 births included 433 boys. Use a 0.10 significance level to test the claim…

A: Hypotheses is  (C)

Q: In a program designed to help patients stop smoking, 181 patients were given sustained care, and…

A: Given,sample size(n)=181sample proportion(p^)=0.807population proportion(P)=0.80and α=0.05

Q: Suppose 241 subjects are treated with a drug that is used to treat pain and 50 of them developed…

A: The sample size is .The number of successes in the sample is .The hypothesized proportion is .The…

Q: An online poll​ asked: "Do you believe the Loch Ness monster​ exists?" Among 21 comma 500…

A: The given information is:The sample size is The proportion of students who said yes is The…

Q: Suppose 243 subjects are treated with a drug that is used to treat pain and 54 of them developed…

A: Given,   The sample proportion is,

Q: Suppose 242 subjects are treated with a drug that is used to treat pain and 54 of them developed…

A: Solution: Let X be number of subjects developed nausea and n be the number of subjects. From the…

Q: An online poll​ asked: "Do you believe the Loch Ness monster​ exists?" Among 20,833 ​responses,…

A: Given Pcap=0.67 P=0.50 n=20833

Q: Identify the conclusion for this hypothesis test. O A. Reject Ho. There is not sufficient evidence…

A:

Q: A random sample of 845 births included 435 boys. Use a 0.10 significance level to test the claim…

A: Solution: Given information: n = 845=  Sample size of birth  x = 435  boys  p^=xn=435845= 0.5148…

Q: Suppose 226 subjects are treated with a drug that is used to treat pain and 54 of them developed…

A: Given Information: Sample size n=226 users x=54 of them developed nausea. Significance level α=0.10…

Q: Consider a drug testing company that provides a test for marijuana usage. Among 268 tested subjects,…

A:

Q: A random sample of 852 births included 429 boys. Use a 0.10 significance level to test the claim…

A:

Q: n​ 1997, a survey of 800800 households showed that 132132 of them use​ e-mail. Use those sample…

A: a. Here, H0: p =0.15 Vs Ha: p &gt;0.15, Here, the sample size is, n = 800; sample proportion,…

Q: Suppose 224 subjects are treated with a drug that is used to treat pain and 53 of them developed…

A: The objective of this question is to test a claim about a population proportion using a sample…

Q: A random sample of 844 births included 431 boys. Use a 0.10 significance level to test the claim…

A: Given : Let X : No. of births boys Sample size (n) = 844 X = 431 α = 0.10

Q: An online poll​ asked: "Do you believe the Loch Ness monster​ exists?" Among 20,660 ​responses, 64​%…

A:

Q: Suppose 247 subjects are treated with a drug that is used to treat pain and 52 of them developed…

A: Given: Sample size (n) = 247 Number of subjects developed nausea (x) = 52 Hypothesized proportion…

Q: In a program designed to help patients stop smoking. 177 patients were given sustained care, and…

A: Given,   Sample size = 177 Sample proportion = 0.836   The null and alternative hypothesis is:

Q: An online poll asked: "Do you believe the Loch Ness monster exists?" Among 20,139 responses, 68%…

A: Given Sample size=n=20139 Population proportion=0.5

Q: An online poll asked: "Do you believe the Loch Ness monster exists?" Among 20,926 responses, 65%…

A: Denote p as the true proportion of the respondents who said that they believed in the existence of…

Q: An online poll​ asked: "Do you believe the Loch Ness monster​ exists?" Among 22,346 responses,…

A: b.   From the given information, the claim of the problem is “most of the people believe that the…

Q: Past studies have indicated that the percentage of smokers was estimated to be about 30%. Given the…

A: The population proportion of smokers is denoted by p. The claim is “The percentage of smokers has…

Q: a program designed to help patients stop smoking, 173 patients were given sustained care, and 801…

A: As the testing is required to find whether the actual proportion is 80%, it means that the…

Q: Suppose that in a random selection of 100 colored candies, 25% of them are blue. The candy company…

A:

Q: Suppose 242 subjects are treated with a drug that is used to treat pain and 50 of them developed…

A: claim : p &gt; 0.20n = 242x = 50α = 0.10

Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calculated is present here only.