79 # 7.10 Topic 10: Inference for One Proportion## Questions### 78. Complete the SentencesChoose the correct word(s) to fill in the blank for each sentence.(a) A point estimate is obtained from the ______ (sample/population).(b) A point estimate is used to make inferences about the ______ (sample statistic/population parameter).(c) As the sample size decreases, the width of the confidence interval ______ (increases/decreases/does not change).(d) As the level of confidence increases, the width of the confidence interval ______ (increases/decreases/does not change).(e) As the point estimate increases, the width of the confidence interval ______ (increases/decreases/does not change).(f) Interpretations of a confidence interval are always in terms of the ______ (sample/population).### 79. Confidence Interval MultiplierWhat is the multiplier for an interval that estimates the proportion with:- (a) 88% confidence?- (b) 98% confidence?### 80. Research on Smartphone Usage While DrivingResearch commissioned by AT&T and conducted by Braun Research in 2015 polled 2,067 people in the U.S. aged 16-65 who use their smartphone and drive at least once a day. An unsettling 17% of the respondents admitted to taking pictures/selfies while driving.- (a) What is the point estimate for the proportion of drivers who take pictures with a smartphone while driving? - (b) What is the multiplier for a 90% confidence interval to estimate the proportion of drivers who take photos? - (c) What is the standard error for the proportion who take photos? - (d) What is the margin of error? - (e) Construct a confidence interval for the proportion of all drivers who take pictures while driving. - (f) Interpret the interval. - (g) A friend claims that 25% of drivers take pictures while behind the wheel. Is your friend’s claim valid? Explain.### 81. Facebook Usage While DrivingResearch commissioned by AT&T and conducted by Braun Research in 2015 polled 2,067 people in the U.S. aged 16-65 who use their smartphone and drive at least once a day. When asked if they used Facebook while driving, 558 respondents answered "yes".- (a) What is the point

Name: 79 # 7.10 Topic 10: Inference for One Proportion## Questions### 78. Co
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Description: 79 # 7.10 Topic 10: Inference for One Proportion## Questions### 78. Complete the SentencesChoose the correct word(s) to fill in the blank for each sentence.(a) A point estimate is obtained from the ______ (sample/population).(b) A point estimate is u