Use the Hypothesis Testing flow chart interactive to answer the following question. Given the claim that "at least 60% of adults vote," which of the following is the symbolic form of the null hypothesis Ho? Choose the correct answer below. О А. р<0.60 О В. Р3D0.60 О С. р20.60 D. ps0.60
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- State whether it is a correctly stated hypothesis testing problem and why.(a) Ho: µ = 25, H1: µ ≠ 25Is the hypothesis above a one-tail or a two-tail hypothesis?A researcher claims that 62% of voters favor gun control. Assuming that a hypothesis test is conducted to test this claim, identify the null hypothesis H0 and the alternative hypothesis Ha. Which is correct? H0: p = 0.62 H1: p ≠ 0.62 H0: p ≠ 0.62 H1: p = 0.62 H0: p 0.62 H1: p < 0.62 H0: p < 0.62 H1: p 0.62
- Because 25 percent of the students in my morning statistics class watch eight or more hours of television a week, I conclude that 25 percent of all students at the university watch eight or more hours of television a week. The most important logical weakness of this conclusion would be?In a recent sample of 250 households, 45% of them owned a video game console. A hypothesis test was performed using the following hypotheses: Họ : p = 0.40 vs. H, : p> 0.40. A Type II error for this hypothesis test is: To conclude that 40% of households own a video game console when, in reality, it is more than 40%. To conclude that 40% of households own a video game console when, in reality, it is equal to 40%. To conclude that r than 40% of households own a video game console when, in reality, it is more than 40%. To conclude that more than 40% of households own a video game console when, in reality, it is equal to 40%.A nonprofit organization conducted a survey of 2140 metropolitan-area teaches regarding their beliefs about problems that hamper students’schooling. The following data were obtained:-900 said that lack of parental support is a problem.-890 said that abused or neglected children are problems. -680 said that malnutrition or students in poor health is a problem-120 said that lack of parental supportand abused or neglected children are problems-110 said that lack of parental support and malnutrition or poor health are problems-140 said that abused or neglected children and malnutrition or poor health are problems-40 said that lackof parental support, abuse or neglect, and malnutrition or poor health are problemsWhatis the probability that a teacher selected at random from this group said that lack of parental support is the only problem hampering students’schooling?
- The proportion of high school students who participate in extra-curricular activities is at least 0.64. Identify the null hypothesis and alternative hypothesis in symbolic form.Assume that 40% of students at SCC receive A or B’s, 35% receive C’s, and 25% receive D or F’s. A survey of 300 r/s UC Davis students indicates that 100 of them received A or B’s, 130 received C’s, and 70 received D or F’s. Do these results provide strong evidence that the overall percentages of the 3 grade categories at UC Davis are not all the same as the ones at SCC? Perform a hypothesis test and use a p-value to draw and explain your conclusion.(a) Use an appropriate formula to calculate the expected counts.(b) Use an appropriate formula to calculate the test statistic.(c)Use an appropriate table to estimate the p-value. Do not draw any conclusionIn 2008, 46% of business owners gave a holiday gift to their employees. A 2009 survey of business owners indicated that 35% plan to provide a holiday gift to their employees (Radio, WEZV, Myrtle Beach, South Carolina,) Suppose the survey results are based on a sample of 60 business owners. A) How many business owners in the survey plan to provide a holiday gift to their employees? B) Suppose the business owners in the sample do as they plan. Compute the p-value for a hypothesis test that can be sued to determine if the proportion of business owners providing holiday gifts has decreased from the 2008 level. C) Using a 0.05 level of significance, would you conclude that the proportion of business owners providing gifts has decreased? What is the smallest level of significance for which you could draw such a conclusion? Use excel Please
- In a recent sample of 250 households, 45% of them owned a video game console. A hypothesis test was performed using the following hypotheses: H_0: p = 0.40 \text{ vs. } H_a: p > 0.40H0:p=0.40 vs. Ha:p>0.40. A Type II error for this hypothesis test is: To conclude that 40% of households own a video game console when, in reality, it is more than 40%. To conclude that 40% of households own a video game console when, in reality, it is equal to 40%. To conclude that more than 40% of households own a video game console when, in reality, it is more than 40%. To conclude that more than 40% of households own a video game console when, in reality, it is equal to 40%.The Bureau of Transportation Statistics Omnibus Household Survey is conducted annually and serves as an information source for the U.S. Department of Transportation. Inone part of the survey the person being interviewed was asked to respond to the following statement: “Drivers of motor vehicles should be allowed to talk on a hand-held cellphone while driving.” Possible responses were strongly agree, somewhat agree, somewhatdisagree, and strongly disagree. Forty-four respondents said that they strongly agree withthis statement, 130 said that they somewhat agree, 165 said they somewhat disagree, and741 said they strongly disagree with this statement (Bureau of Transportation website,August 2010).a. Do the responses for this statement provide categorical or quantitative data?The Bureau of Transportation Statistics Omnibus Household Survey is conducted annually and serves as an information source for the U.S. Department of Transportation. Inone part of the survey the person being interviewed was asked to respond to the following statement: “Drivers of motor vehicles should be allowed to talk on a hand-held cellphone while driving.” Possible responses were strongly agree, somewhat agree, somewhatdisagree, and strongly disagree. Forty-four respondents said that they strongly agree withthis statement, 130 said that they somewhat agree, 165 said they somewhat disagree, and741 said they strongly disagree with this statement (Bureau of Transportation website,August 2010).a. Do the responses for this statement provide categorical or quantitative data?b. Would it make more sense to use averages or percentages as a summary of theresponses for this statement?c. What percentage of respondents strongly agree with allowing drivers of motorvehicles to talk on a hand-held…