A national survey of 2000 adult citizens of a nation found that 23% dreaded Valentine's Day. The margin of error for the survey was 2.8 percentage points with 90% confidence. Explain what this meansWhich statement below is the best explanation?O A. There is 90% confidence that 23% of the adult citizens of the nation dreaded Valentine's Day.O B. There is 87.2% to 92 8% confidence that 23% of the adult citizens of the nation dreaded Valentine's DayO C. There is 90% confidence that the proportion of the adult citizens of the nation that dreaded Valentine's Day is between 0.202 and 0.258.O D. In 90% of samples of adult citizens of the nation, the proportion that dreaded Valentine's Day is between 0.202 and 0.258.NextStatcrunchO 8:57

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Answered: A national survey of 2000 adult…

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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Students at Dover Community College have a mean credit card debt of $4,700 with a median of $2,900. Students at Ralton Community College have a mean credit card debt of $2,100 with a median of $1,900. Which of the following statements are true based on this information? There may be more than one correct answer. i. No more than half of Ralton students have debt more than $1,900. ii. The total debt of Ralton students is more than the total debt of Dover students. iii. The largest debt of the Ralton students is less than the largest debt of the Dover students. iv. About one-fourth of Ralton students have debt more than $2,100. v. Less than half of Dover students have debt more than $4,700.
If 61% of Americans believe most school textbooks favor political correctness over accuracy, how many Americans in a group of 50 would you expect to believe this?
4
Suppose 500 people in the sample of 1,007 adults were women. Gallup asked these 500 women. "What is your favorite Summer Olympic event?" Thirty-five percent said swimming was their favorite. Gallup gave a margin of error for this result. A) ....Plus or minus 3 percentage points just as for the overall poll B)...greater than plus or minus 3 points becuase the sample for this question is smaller C)...less than plus or minus 3 points because the population of swimming fans is smaller than the population of all adults D)...Less than plus or minus 3 points becuase the sample for this question is smaller
Determine if the survey question is biased. If the question is biased, suggest a better wording. How often do you eat vegetables during an average month? Is the question biased? OA. Yes, because it does not lead the respondent to any particular answer. A better question would be "Why is eating vegetables good for you?" OB. Yes, because it influences the respondent into thinking that eating vegetables is good for you. A better question would be "Do you think that eating vegetables is good for you?" OC. No, because it influences the respondent into thinking that eating vegetables is good for you. OD. No, because it does not lead the respondent to any particular answer.
If the p-value of a test is .037 then you would
Solve it on the paper.
An experiment investigated the effect of length and repetition of TV ads on students choosing to eat at Del Taco. All 60 students watched a 40-minute television program that included ads for Del Taco. Some students saw a 30-second commerical; others a 90-second commerical. The same commerical was shown either 1, 3, or 5 times during the program. After the viewing, each student was asked to rate their craving for Del Taco on a scale of 0 to 10. What are the subjects of this experiment?A. 60 studentsB. effect of length and repetion of TV adsC. 40-minute television programD. craving for Del Taco on a scale of 0 to 10E. 1, 3, or 5 commercials during the 40-minute television program
Explain what the statements below mean:A)A Rasmussen Reports national survey of 1000 adult Americans found that 18% dreaded Valentine's Day. The margin of error for the survey was 4.5 percentage points with 95% confidence. B)A Gallup poll of 547 adults Americans employed full or part time asked, "Generally speaking, would you say your commute to work is - very stressful, somewhat stressful, not that stressful at all?" Gallup reported that 24% of American workers said that their commute was "very" or "somewhat" stressful. The margin of error was 4 percentage points with 95% confidence.
An experiment investigated the effect of length and repetition of TV ads on students choosing to eat at Del Taco. All 60 students watched a 40-minute television program that included ads for Del Taco. Some students saw a 30-second commerical; others a 90-second commerical. The same commerical was shown either 1, 3, or 5 times during the program. After the viewing, each student was asked to rate their craving for Del Taco on a scale of 0 to 10. What is the response variable?A. 1, 3, or 5 commercials during the 40-minute television programB. craving for Del Taco on a scale of 0 to 10C. 60 studentsD. 30-second and 90-second commericialsE. 40-minute television program
Multiple Comparisons Dependent Variable: RAPEMYTH Tukey HSD Mean Difference (- J) 95% Confidence Interval () MOST WOMEN FIND ME UNATTRACTIVE (J) MOST WOMEN FIND ME UNATTRACTIVE Agree somewhat Std. Error Sig. Lower Bound Upper Bound Agree strongly 2.69258 .56229 .000 1.2458 4.1393 Disagree somewhat 3.10941" .53686 .000 1.7281 4.4907 Disagree strongly 3.85225 .52543 .000 2.5003 5.2042 Agree somewhat Agree strongly -2.69258 .56229 .000 -4.1393 -1.2458 Disagree somewhat .41684 .32901 .584 -.4297 1.2634 Disagree strongly 1.15967" .31001 .001 .3620 1.9573 Disagree somewhat Agree strongly -3.10941 .53686 .000 -4.4907 -1.7281 Agree somewhat -.41684 .32901 .584 -1.2634 .4297 Disagree strongly .74283 .26107 .023 .0711 1.4146 Disagree strongly -3.85225 -1.15967 -74283 Agree strongly .52543 .000 -5.2042 -2.5003 Agree somewhat 31001 .001 -1.9573 -.3620 Disagree somewhat *. The mean difference is significant at the 0.05 level. .26107 .023 -1.4146 -.0711 RAPEMYTH Tukey HSD*. Subset for alpha = 0.05…
In Statsville there’s a city-wide speed limit of 30 mph.If you are caught speeding the fine is $100 plus $10 forevery mile per hour you were over the speed limit. Forexample, if you’re ticketed for going 45 mph, your fine is100 + 10145 - 302 = +250. Last month all the driverswho were fined for speeding averaged 42 mph with astandard deviation of 7 mph. What were the mean andstandard deviation of the fines?A) $120 and $70 B) $220 and $7C) $220 and $70 D) $220 and $170E) $420 and $70

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