A paper reported that in a representative sample of 282 American teens age 16 to 17, there were 78 who indicated that they had sent a text message while driving. For purposes of this exercise,assume that this sample is a random sample of 16- to 17-year-old Americans. Do these data provide convincing evidence that more than a quarter of Americans age 16 to 17 have sent a text messagewhile driving? Test the appropriate hypotheses using a significance level of 0.01. (Round your test statistic to two decimal places and your P-value to four decimal places.)Z =P-value%3DState your conclusion.Reject Ho. We have convincing evidence that more than a quarter of Americans age 16 to 17 have sent a text message while driving.Do not reject Ho. We do not have convincing evidence that more than a quarter of Americans age 16 to 17 have sent a text message while driving.Do not reject Ho: We have convincing evidence that more than a quarter of Americans age 16 to 17 have sent a text message while driving.Reject Ho. We do not have convincing evidence that more than a quarter of Americans age 16 to 17 have sent a text message while driving.

Given data number of success , x= 78 sample size, n =282 population proportion,p=…

Answered: P-value = State your conclusion. Reject…

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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Age and Gender. The U.S. Census Bureau publishes census data on the resident population of the United States in Current Population Survey. According to that document, 7.3% of male residents are in the age group 20–24 years. a. If no association exists between age group and gender, what percentage of the resident population would be in the age group 20–24 years? Explain your answer.b. If no association exists between age group and gender, what percentage of female residents would be in the age group 20–24 years? Explain your answer.c. There are about 158 million female residents of the United States. If no association exists between age group and gender, how many female residents would there be in the age group 20–24 years?d. In fact, there are some 10.9 million female residents in the age group 20–24 years. Given this number and your answer to part (c), what do you conclude?
Do you think the results of the study might be applicable to the whole population? Why or why not?
Explain the Lady Tasting Tea Experiment
Correlation and causation are the same concept. O True False
24. According to the Centers for Disease Control and Prevention (CDC), 26% of Americans are "anti-vax". To verify this, 1,000 Americans were asked and 324 of them said they are "anti-vax". What is the population, sample, statistic, paramter, variable, and constants?
Page 160 #17 We predict that children exhibit more aggressive act after watching a violent television show. The scores for ten children were recorded before they watched a violent show and then after they watched a violent show. Aggression was measured in terms of number of aggressive acts (e.g. hitting, yelling, kicking etc). Sample 1 (after TV show): 5,6,4,4,7,3,2,1,4,1 Sample 2 (before TV show): 4,6,3,2,4,1,0,0,5,2 Is this a one-tailed or two-tailed test?
9
None
Sleep apnea is a condition in which the sufferers stop breathing momentarily while they are asleep. This condition results in lack of sleep and extreme fatigue during waking hours. A current estimate is that 16.3 million out of the 312.7 million Americans suffer from sleep apnea, or approximately 5.2%. A safety commission is concerned about the percentage of commercial truck drivers who suffer from sleep apnea. They do not have any reason to believe that it would be higher or lower than the population’s percentage. To test the claim that the percentage of commercial truck drivers who suffer from sleep apnea is not 5.2%, a simple random sample of 380380 commercial truck drivers is examined by a medical expert, who concludes that 29 suffer from sleep apnea. Does this evidence support the claim that the percentage of commercial truck drivers who suffer from sleep apnea is not 5.2%? Use a 0.01 level of significance. Step 1 of 3 : State the null and alternative hypotheses for the test.…

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