A study was conducted to determine the proportion of people who dream in black and white instead of color. Among 313 people over the age of 55, 77 dream inblack and white, and among 292 people under the age of 25, 15 dream in black and white. Use a 0.01 significance level to test the claim that the proportion ofpeople over 55 who dream in black and white is greater than the proportion for those under 25. Complete parts (a) through (c) below.Tucrury uZ=(Round to two decimal places as needed.)Identify the P-value.P-value=(Round to three decimal places as needed.)What is the conclusion based on the hypothesis test?The P-value isthe significance level of α = 0.01, sothe null hypothesis. There isthe proportion of people over 55 who dream in black and white is greater than the proportion for those under 25.evidence to support the claim that A study was conducted to determine the proportion of people who dream in black and white instead of color. Among 313 people over the age of 55, 77 dream inblack and white, and among 292 people under the age of 25, 15 dream in black and white. Use a 0.01 significance level to test the claim that the proportion ofpeople over 55 who dream in black and white is greater than the proportion for those under 25. Complete parts (a) through (c) below.b. Test the claim by constructing an appropriate confidence interval.The 98% confidence interval is < (P₁-P₂) <(Round to three decimal places as needed.)What is the conclusion based on the confidence interval?Because the confidence interval limits0, it appears that the two proportions arevalues, it appears that the proportion of people over 55 who dream in black and white isBecause the confidence interval limits includeproportion for those under 25.thec. An explanation for the results is that those over the age of 55 grew up exposed to media that was displayed in black and white. Can these results be usedto verify that explanation?

Confidence interval are used to determine the range where the true parameter lies. It calculated…

Answered: A study was conducted to determine the…

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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The table shows data about student involvement in extracurricular activities at a local high school. Extracurricular Activities Involved in Not Involved in Activities Activities Totals Male 112 145 257 Female 139 120 259 Totals 251 265 516 P(femalel involved in activities)? 265 516 139 251 251 516 139 516
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
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
According to a recent census, 14.9%of all housing units in a certain country are vacant. A county supervisor wonders if her county is different from this. She randomly selects 832 housing units in her county and finds that 160 of the housing units are vacant. Complete parts a through d below. What is the P-value=???
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…
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