Math
posted by Cassandra .
The Pew Research Center recently polled n= 1048 U.S drivers andfound that 69% enjoyed driving their automobiles.
(a) Construct a 95% confidence interval for the proportion of U.S.drivers who enjoy driving their automobiles.
(b) In 1991, Gallup Poll reported this percent to be 79%. Using thedata from this poll, test the claim that the percent of drivers whoenjoy driving their cars has declined since 1991. Report thelargesample z statistic and its Pvalue.
Respond to this Question
Similar Questions

Statisics
transportation officials tell us that 80% of drivers wear seat belt while driving. Find the probability that more then 567 drivers in a sample of 700 drivers wear seat belts 
statistics
The pew research center recently polled n=1048 u.s. drivers and found that 69% enjoyed driving their cars. In 1991 a poll reported this percent to be 79%. Using the data from this poll ,test the claim that the percent of drivers who … 
statistics
The pew research center recently polled n=1048 u.s. drivers and found that 69% enjoyed driving their cars. In 1991 a poll reported this percent to be 79%. Using the data from this poll ,test the claim that the percent of drivers who … 
statistics
The pew research center recently polled n=1048 u.s. drivers and found that 69% enjoyed driving their cars. In 1991 a poll reported this percent to be 79%. Using the data from this poll ,test the claim that the percent of drivers who … 
stastics
A survey of drivers in the United States found that 15% never use a cell phone while driving. Suppose that drivers arrive at random at an auto inspection station. a. If the inspector checks 10 drivers, what is the probability that … 
Stat
6% of american drivers read the newspaper while driving if 300 drivers are selected at random find the probability that between 15 and 25 say they read while driving 
MATH PLS HELP
A research center claims that 50% of people believe that drivers should be allowed to use cellular phones with hands free devices while driving. In a random sample of 150 U.S. adults 58% say that drivers should be allowed to use cellular … 
statistic
A survey of drivers in the United States found that 15% never use a cell phone while driving. Suppose that drivers arrive at random at an auto inspection station. a. If the inspector checks 10 drivers, what is the probability that … 
MathStat Help
In a random sample of 78 teenagers, 32 admit to texting while driving. Construct a 98% confidence interval for the percentage of teenager that text while driving. Start by showing that conditions for constructing a confidence interval … 
Comprehension
A Proud Identity for Women Drivers For decades, Russia's women drivers have been laughed off the roads by their male counterparts. A new magazine "Woman at the Wheel" has recently been published with the aim of giving women drivers …