a. Calculate the point estimate used to create this confidence interval. b. Calculate the margin of error used to create this confidence interval.

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A random sample of 320 college students was asked if they own thier car. Based on
this random sample, a 95% confidence interval for the proption of all college
students is 0.337 to 0.444.
a. Calculate the point estimate used to create this confidence interval.
b. Calculate the margin of error used to create this confidence interval.
Transcribed Image Text:A random sample of 320 college students was asked if they own thier car. Based on this random sample, a 95% confidence interval for the proption of all college students is 0.337 to 0.444. a. Calculate the point estimate used to create this confidence interval. b. Calculate the margin of error used to create this confidence interval.
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