Among 200 randomly selected Internet users, it was found that 89 of them use the Internet for making travel plans. Use asignificance level of 0.01 to test the claim that at least 50% of Internet users use it for making travel plans.What is the decision/summary statement for this test?O A. Reject the Null Hypothesis. There is enough evidence to support the claim that at least 50% of internet users use itfor making travel plans.QUESTION 12O B. Do not reject the Null Hypothesis. There is not enough evidence to reject the claim that at least 50% of internetusers use it for making travel plans.O C. Do not reject the Null Hypothesis. There is not enough evidence to support the claim that at least 50% of internetusers use it for making travel plans.O D. Reject the Null Hypothesis. There is enough evidence to reject the claim that at least 50% of internet users use itfor making travel plans.Save All AnswersClick Save and Submit to save and submit. Click Save All Answers to save all answers.44°Fヘ DOType here to search10/05/17EscF1F2*+F12F3F4F5F6F7PrtScInsertDeleteF8F9F10F11%23&2368Backspace9-TabETYUASDFCapsLkGJ+ ||HI5S4

Given: n= 200 ,x= 89 p= 0.5 ,significance level(∝)= 0.01 p̂= 89 / 200

Answered: Among 200 randomly selected Internet…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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A recent report from the Pew Research Center indicates that even teens think they have a problem being too attached to their phones. A total of 365 teenage girls and 378 teenage boys were surveyed. Of the teenage girls surveyed, 171 reported feeling too attached to their phone. Of the teenage boys surveyed, 132 reported feeling too attached to their phone. Is there convincing statistical evidence of a difference between the two population proportions at the significance level of 0.01? (A) Yes, because the sample proportions are different. (B) Yes, because the p-value is less than 0.01. (C) Yes, because the p-value is greater than 0.01. (D) No, because the p-value is less than 0.01. (E) No, because the p-value is greater than 0.01.
In a survey, 45% of the respondents stated that they talk to their pets on the telephone. A veterinarian believed this result to be too high, so he randomly selected 240 pet owners and discovered that 104 of them spoke to their pet on the telephone. Does the veterinarian have a right to be skeptical? Use the a = 0.01 level of significance. Because npo (1- Po) = 59.4 > 10, the sample size is less than 5% of the population size, and the sample is given to be random, the requirements for testing the hypothesis satisfied. are (Round to one decimal place as needed.) What are the null and alternative hypotheses? 0.45 versus H,: P Hо: р (Type integers or decimals. Do not round.) 0.45 Find the test statistic, zo. Zo = (Round to two decimal places as needed.)
A company that produces a particular brand of juice knows that about 30% of people select that brand if given a choice of all brands. To determine if a commercial would be an effective advertising tool, the company invites 100 people to view a 30-minute program that includes a commercial for the company’s juice. After the program, the participants are offered a choice of juice brands. In this trial, 36 of the 100 participants chose the company’s juice. When a significance test was performed to determine if the true proportion of people who watch the commercial and select the company’s juice exceeds 30%, the P-value was 0.0952. At the α = 0.05 significance level, what decision should the company make? A. Because the P-value of 0.0952 > α = 0.05, the company has evidence that the true proportion of those who would select the company’s juice is larger than 30%. B. Because the P-value of 0.0952 < 0.3, the company has evidence that the true proportion of those who would select the…
An online poll asked: "Do you believe the Loch Ness monster exists?" Among 21,523 responses, 61% were "yes." Use a 0.01 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?
help 14
Among a simple random sample of 331 American adults who do not have a four-year college degree and are not currently enrolled in school, 159 said they decided not to go to college because they could not afford school. A. Calculate the test statistic and the p-value. B. State the conclusion in context.
The US Department of Energy reported that 49% of homes were heated by natural gas. A random sample of 342 homes in Oregon found that 143 were heated by natural gas. Test the claim that proportion of homes in Oregon that were heated by natural gas is different than what was reported. Use a 10% significance level. What are the correct hypotheses? (Select the correct symbols and use decimal values not percentages.) Ho: Select an answerv?Vv H: Select an answerv Check Answer ip % 8.
Please help. thank you.
Credit card debt: Following are outstanding credit card balances for a sample of 16 college seniors at a large university. According to a report, the mean outstanding balance for college seniors in a recent year was $513. Perform a hypothesis test to determine whether the mean debt for seniors at this university is less than $ 513. Use the x = 0.10 level of significance and the P- value method with the TI-84 Plus calculator. A. State the appropriate null and alternate hypotheses. what type of tail does this test have? B. Compute the value of the test statistic. Round the answer to at least three decimal places. T = ? C. Find the P value. Credit card debt: Following are outstanding credit card balances for a sample of 16 college seniors at a large university. 1247 1733 461 2137 1041 623 928 562 892 418 529 2353 753 1401 375 1800 Send data to Excel According to a report, the mean outstanding balance for college seniors in a recent year was $513. Perform a hypothesis test to determine…
For clothing, the accompanying symbol has been designated to indicate that the product should be dry- cleaned only. In a survey of 2000 Americans, 45% correctly knew what the symbol designated. Use a 0.01 significance level to test the claim that fewer than half of all Americans know what the symbol designates.
An online poll asked: "Do you believe the Loch Ness monster exists?" Among 20,833 responses, 63% were "yes." Use a 0.10 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? -Find test statistic -Find P-value -Find conclusion
Listed below are departure delay times (minutes) for American Airlines flights from New York to Los Angeles. Negative values correspond to flights that departed early. Use a 0.01 significance level to test the claim that different flights have the same mean departure delay time. P-value: 0.123

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