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In an simple random sample of 200 college students, 114 said that they usually speed on...

In an simple random sample of 200 college students, 114 said that they usually speed on interstate highways by 10 mph or more. Give a 95% confidence interval for the corresponding proportion for all college students. a: (0.5014,0.6455) b: (0.5431,0.6386) c: (0.3567,0.4533) d: (0.5014,0.6386)

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We will calculate the 95% confidence interval by using the tabulated value of z at 5% level of significance.

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