For this problem, carry at least four digits after the decimal in your calculati
ID: 3054327 • Letter: F
Question
For this problem, carry at least four digits after the decimal in your calculations. Answers may vary slightly due to rounding In a survey of 1000 large corporations, 242 said that, given a choice between a job candidate who smokes and an equally qualified nonsmoker, the nonsimoker would get the job a Let ? represent the proportion of all corporations preferr ng a nonsmoking candidate. Find a port estimate for p Round your answer to four decimal places. (b) Find a o.95 confidence interval for p. (Round your answers to three decimal places.) lower limit upper limit (c) As a news writer, how would you roport the survey results regarding the proportion of corporations that would hire the equally qualifed Report the margin of error. O Report p O Report p along with the margin of error. What is the margin o error based on a 95% confidence interval? Round your answer to three decimal places. Need Help? Talk to aTutor - points BBBasicStat7 8.3015 For this problem, carry at least four digits after the decimal in your calculations. Answers may vary slighty due to rounding. A random sample of 5508 physicians in Colorado showed that 3305 provided at least some charity care (i.e., treated poor people at no cost). (e) Let p represent the proportion of all Colorado physicians who provide some charity care. Find a point estimate for p. (Round your answer toExplanation / Answer
a)
Point estimate = 242/1000 = 0.2420
b)
n = 1000
p = 0.242
z-value of 95% CI = 1.9600
SE = sqrt(p*(1-p)/n)
= sqrt(0.2420 * (1- 0.2420)/1000)
= 0.01354
ME = z*SE
= 1.96 * 0.01354
= 0.02655
Lower Limit = p - ME
= 0.2420 - 0.02655
= 0.215
Upper Limit = p + ME
= 0.2420 + 0.02655
= 0.268
95% CI (0.215 , 0.268 )
c)
Report thr margin of error
d)
ME = z*SE
= 1.96 * 0.01354
= 0.026
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