O A recent FCC report stated that 80% of all u.s. adults. are internet users. In...
In a recent poll of 745 randomly selected adults, 590 said that it is morally wrong to not report all income on tax returns. Use a 0.01 significance level to test the claim that 70% of adults say that it is morally wrong to not report all income on tax returns. Identify the null hypothesis, alternative hypothesis, test statistic, P-value, conclusion about the null hypothesis, and final conclusion that addresses the original claim. Use the P-value method. Use the normal...
When 3014 adults were surveyed in a poll, 79% said that they use the Internet. Is it okay for a newspaper reporter to write that "3/4 of all adults use the Internet"? Why or why not? Identify the null hypothesis, alternative hypothesis, test statistic, P-value, conclusion about the null hypothesis, and final conclusion that addresses the original claim. Use the P-value method. Use the normal distribution as an approximation of the binomial distribution. Identify the null and alternative hypotheses. Choose...
The Gallup Poll asked 1015 U.S. adults whether they believed that people should pay sales tax on items purchased over the internet. Of these, 437 said they supported such a tax. Does the survey provide convincing evidence that less than 45% of U.S. adults favor an internet sales tax? Use the 0.05 level of significance. Prompt 1: The null hypothesis Ho Prompt 1 Answer Prompt 2: The alternative hypothesis Ha Prompt 2 Answer Prompt 3: The test statistic Prompt 3:...
Question Use the following to answer all of the questions. According to the Pew Internet and American Life Project 75% of American adults use the Internet. A survey of 600 adults aged 50-64 found 420 used the Internet (70%). We want to determine whether the proportion of Internet users age 50-64 differs from the overall proportion of 0.75. What is the alternative hypothesis? Group of answer choices a) µ ≠ 0.75 b) p ≠ 0.75 c) p ≠ 0.70 d)...
Do more than 40% of U.S. adults save enough for retirement? According to Gallup’s Lifestyle poll, 42% of U.S. adults found out they are saving enough for retirement. The poll was based on a random sample of 1014 U.S. adults. Use a test of hypothesis to test the validity of the claim. State your conclusion in the context of the problem.(Assume significance level α=0.01)Be sure to verify the conditions. Note:You are to show and explain all calculator commands and inputs...
In a recent? poll, 789 adults were asked to identify their favorite seat when they? fly, and 508 of them chose a window seat. Use a 0.05 significance level to test the claim that the majority of adults prefer window seats when they fly. Identify the null? hypothesis, alternative? hypothesis, test? statistic, P-value, conclusion about the null?hypothesis, and final conclusion that addresses the original claim. Use the? P-value method and the normal distribution as an approximation to the binomial distribution....
Question 1 2.5 pts Use the following to answer all of the questions. According to the Pew Internet and American Life Project 75% of American adults use the Internet. A survey of 600 adults aged 50-64 found 420 used the Internet (70%). We want to determine whether the proportion of Internet users age 50-64 differs from the overall proportion of 0.75. What is the alternative hypothesis? OUz O.75 p 0.75 Op 0.70 Op 0.75 2.5pts Question 2 Compute the test...
In a recent poll, 780 adults were asked to identify their favorite seat when they fly, and 492 of them chose a window seat. Use a 0.01 significance level to test the claim that the majority of adults prefer window seats when they fly. Identify the null hypothesis, alternative hypothesis, test statistic, P-value, conclusion about the null hypothesis, and final conclusion that addresses the original claim. Use the P-value method and the normal distribution as an approximation to the binomial...
I. In a KRC Research poll, 1002 adults were asked if they felt vulnerable to identity theft, and 531 of them said "yes". Use a 0.05 significance level to test the claim that the majority of adults feel vulnerable to identity theft. Write the null and alternative hypotheses in symbolic form. a. b. Find the test statistic. c. Find the P-value. d. Make a decision about the null hypothesis. e. State the final conclusion, addressing the original claim, in nontechnical...
According to recent research, about 15% of all adults nationally who use the internet use Twitter Blank #1: Out of 30 selected adults who use the internet, what is the mean and standard deviation of the number who use Twitter (the expected value and the give or take amount). Report your answer as mean,stddev with no extra spaces. If any rounding is necessary, do so to two decimal places. Blank #2: Out of 30 people selected, what is the probability...