Mathematics

Mathematics, 17.07.2019 00:30, eyeneedalife

Asample of 250 adults tried the new multigrain cereal "wow! " a total of 187 rated it as excellent. in a sample of 100 children, 66 rated it as excellent. using the 0.1 significance level, the researcher wishes to show that adults like the cereal better than children. what is the pooled proportion?

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Mathematics, 26.08.2019 20:00, AnwarWeirdLol8811

Type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar(s). viewer's age group excellent good average poor marginal total 16–25 52 42 12 7 113 26–35 33 50 5 9 97 36–45 58 12 28 34 132 46–55 25 17 22 12 76 56+ 12 5 3 8 28 marginal total 180 126 70 70 446 note: a rating of good or excellent means the audience liked the movie, while a rating of poor means the audience disliked the movie. a movie producer conducted a survey after a preview screening of her new movie to find out how the film would be received by viewers from different age groups. the table shows the numbers of viewers in different age groups who rated the film excellent, good, average, and poor. out of the total respondents, the percentage of respondents from the 46–55 age group who rated the film excellent is %. write your answer up to two decimal places.

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Mathematics, 26.08.2019 20:00, shay7298

Type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar(s). viewer's age group excellent good average poor marginal total 16–25 52 42 12 7 113 26–35 33 50 5 9 97 36–45 58 12 28 34 132 46–55 25 17 22 12 76 56+ 12 5 3 8 28 marginal total 180 126 70 70 446 note: a rating of good or excellent means the audience liked the movie, while a rating of poor means the audience disliked the movie. a movie producer conducted a survey after a preview screening of her new movie to find out how the film would be received by viewers from different age groups. the table shows the numbers of viewers in different age groups who rated the film excellent, good, average, and poor. out of the total respondents, the percentage of respondents from the 46–55 age group who rated the film excellent is %. write your answer up to two decimal places.

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Mathematics, 19.09.2019 18:30, williamwc290

Which company was rated the best? a. there is insufficient information to determine which company was rated best. b. superior printing was rated best, because the bar is wider. c. quicky printing was rated best, because the bar comes first in the series. d. all three companies were rated to be equal.

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Mathematics, 08.11.2019 01:31, preservations

Asurvey of 750 likely voters in ohio was conducted by the rasmussen poll just prior to the general election (rasmussenreports website november 4, 2012). the state of the economy was thought to be an important determinant of howpeople would vote. among other things, the survey found that 165 of the respondents rated the economy as good orexcellent and 315 rated the economy as poor.a. develop a point estimate ofthe proportion of likely voters in ohio who rated the economy as good or excellent.b. construct a 95% conﬁdence interval for the proportion of likely voters in ohio who rated the economy as good orexcellentc construct a 95% confidence interval for the proportion of likely voters in ohio who rated the economy as poor.d. which ofthe confidence intervals in parts (b) and (c) is wider? why?

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Asample of 250 adults tried the new multigrain cereal "wow! " a total of 187 rated it as excellent....

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