A very small p-value is strong evidence for the Ha (Alternative Hypothesis). Select one: True False
Q: Test the given claim. Identify the null hypothesis, alternative hypothesis, test statistic,…
A: Given Data: x1=223 n1=2077 p1=x1n1=2232077=0.1074x2=48 n2=335…
Q: Easy 2.6 3.9 3.4 1.2 2.1 1.2 1.8 2.2 Typical 5.6 4.5 3.7 2 3.3 4.6 3.1 2 Diff 9 5.6 3.5 7.8 6.4 7.5…
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A: sample size(n)=398 x=44 significance level(α)=0.10 sample proportion(p^)=44398≅0.1106
Q: Find the p-value for a two-tailed hypothesis test with a test statistic of z= 2.49
A: given data two tailed test z = 2.49 p value = ?
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A: Let us analyse each option and find correct option.
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A: From the provided information, The claim is that the average weight of a wild Nevada colt (3 months…
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Q: Are Republicans less likely than Democrats to display the American flag in front of their residence…
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Q: n state the conclusion about the null hypothesis, as well as the final conclusion that es the…
A: The sample size [n1] = 2077The sample size [n2] = 304
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A: It is given that, Test statistic , t =3.255 sample size, n=21 Degree of freedom is =n-1=21-1=20
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A: Since you have asked multiple question, we will solve the first question for you. If youwant any…
Q: = +0.28, If, in a one-tail hypothesis test where Ho is only rejected in the upper tail, the p-value…
A: Given that P-value =0.3892 and test statistic z=0.28 Claim at right tailed test.
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A: Hi! Thanks for posting the question. Since your question has more than three sub-parts, we are…
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A: Hypotheses are H0: P =0.5 H1: P> 0.5
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Q: Find the p-value for a right-tailed hypothesis test with a test statistic of z=-2.78
A: given data Z = -2.78 right tiled test pvalue = ?
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A: Population proportion : p=0.66 Sample size : n=54 Number of success : x=41
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- Find the p-value for a left-tailed hypothesis test with a test statistic of z= -1.25A concerned group of citizens wanted to know if the proportion of armed robberies in Texas was different in 2011 than in 2010. Their research showed that of the 113,231 violent crimes in Texas in 2010, 7,622 of them were armed robberies. In 2011, 7,439 of the 104,873 violent crimes were in the armed robbery category. Test at a 5% significance level.a) The null and alternative hypothesis would be: �0:�2010=�2011�1:�2010≠�2011 �0:�2010=�2011�1:�2010<�2011 �0:�2010=�2011�1:�2010≠�2011 �0:�2010=�2011�1:�2010>�2011 �0:�2010=�2011�1:�2010>�2011 �0:�2010=�2011�1:�2010<�2011 b) Determine the test statistic. Round to two decimals.�=c) Find the p-value and round to 4 decimals.p = d) Make a decision. Fail to reject the null hypothesis Reject the null hypothesis e) Write the conclusion. There is not sufficient evidence to support the claim that the proportion of armed robberies is different in 2011 than 2010. There is sufficient evidence to support the claim that the…O Test the given claim. Identify the null hypothesis, alternative hypothesis, test statistic, P-value, and then state the conclusion about the null hypothesis, as well as the final conclusion that addresses. the original claim. Among 2178 passenger cars in a particular region, 244 had only rear license plates. Among 356 commercial trucks, 48 had only rear license plates. A reasonable hypothesis is that commercial trucks owners violate laws requiring front license plates at a higher rate than owners of passenger cars. Use a 0.01 significance level to test that hypothesis. a. Test the claim using a hypothesis test. b. Test the claim by constructing an appropriate confidence interval. OD. Fail to reject Ho. There is sufficient evidence to support the claim that commercial trucks owners violate laws requiring front license plates at a higher rate than owners of passenger cars. b. Identify the confidence interval limits for the appropriate confidence interval. Let population 1 correspond to…
- A decade-old study found that the proportion of high school seniors who felt that getting rich" was an important personal goal was 66%. 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 H. and the alternative hypothesis H, that we would use for this test. Ho: H OSO Submit Assignmen Privacy Accessibili Continue O 2021 McGraw-Hill Education. All Rights Reserved. Terms of Use reviousIf the p-value is very large (say close to 1), then it is likely that we will reject the null hypothesis. True FalseAn institute conducted a clinical trial of its methods for gender selection. The results showed that 153 of 276 babies born to parents using a specific gender-selection method were boys. Use the sign test and a 0.05 significance level to test the claim that the method has no effect on the likelihood of a boy. Let p denote the population proportion of baby boys. Ignore the possibility of the method decreasing the likelihood of a boy. What are the null and alternative hypotheses? O A. Ho: p=0.5 H₂₁: p20.5 O C. Ho: p=0.5 H₁: p=0.5 O B. Ho:p>0.5 H₁: p=0.5 O D. Ho: p=0.5 H₁: p > 0.5 Find the test statistic. Test statistic = Find the P-value. P-value = (Round to four decimal places as needed.) Determine the proper conclusion. Choose the correct answers below. Since the P-value is (Round to two decimal places as needed.) than the significance level, evidence that the method used is effective in increasing the likelihood of a boy. the null hypothesis. There is
- The body weight of a healthy 3-month-old colt should be about ? = 74 kg. You want to set up a statistical test to challenge the claim that ? = 74 kg. Suppose you want to test the claim that the average weight of a wild Nevada colt (3 months old) is less than 74 kg. State the null hypothesis H0 and the alternate hypothesis H1 . H0 : ? H1 : ? What kind of test is this? right-tailed testtwo-tailed test left-tailed testOnly 17% of registered voters voted in the last election. Will voter participation change for the upcoming election? Of the 356 randomly selected registered voters surveyed, 57 of them will vote in the upcoming election. What can be concluded at the a = 0.01 level of significance? a. For this study, we should use Select an answer b. The null and alternative hypotheses would be: Ho: H₁: Select an answer ?✓ Select an answer c. The test statistic ? ✓ = (please enter a decimal) (Please enter a decimal) (please show your answer to 3 decimal places.) d. The p-value = e. The p-value is ? ✓ a f. Based on this, we should Select an answer the null hypothesis. (Please show your answer to 4 decimal places.)If, in a one-tail hypothesis test where H0 is only rejected in the upper tail, the p-value=0.6792 and ZSTAT=−0.47,what is the statistical decision if the null hypothesis is tested at the 0.07 level of significance? What is the statistical decision? Since the p-value is Less than or Greater than or equal to a= , Reject , Do not reject H0.
- A newsletter publisher believes that over 62%62% of their readers own a Rolls Royce. For marketing purposes, a potential advertiser wants to confirm this claim. After performing a test at the 0.020.02 level of significance, the advertiser decides to reject the null hypothesis. What is the conclusion regarding the publisher's claim?A psychologist specializing counseling claims that, among all married couples, the proportion p for whom her communication program can prevent divorce 79% . In a random sample of 240 married couples who completed her program, 174 of them stayed together. Based on this sample, can we reject the psychologist's claim at the 0.1 level of significance The null hypothesis: H0: ___ The alternative hypothesis: H1: ___ The type of test statistic: (Choose one) ___ The value of the test statistic: (Round to at least three decimal places.) ______ The p-value: (Round to at least three decimal places.) _____ Can we reject psychologist’s claim that the Proportion of married couples for whom her Program can prevent divorce is a least 79%? Yes ____ or NO____What proportion of adults in the US do not use the internet? In 2010, it was estimated [10] that 24% of adults in the US did not use the internet. Improved internet infrastructure, the ability to connect with others, and many other factors seem to be contributing to more people using the internet. Suppose we randomly select 120 individuals and ask them whether or not they use the internet. Suppose we find that 12 people do not use the internet. Conduct a hypothesis test using α = .01. Make sure to state the null and alternative hypotheses, state the appropriate test statistic, set up the rejection region, find the P-value for this test, make your conclusion using both the rejection region method and the P-value, and state your conclusion in the context of the problem.
