Question

From a survey of 250 coworkers you find that 80 would like the company to provide on-site day care. a) What is the value of the sample proportion p? b) What is the standard error of the sample proportion? c) Construct an approximate 95% confidence interval for the true proportion p by taking t2 SEs from the sample proportion a)p (Type an integer or a decimal.) b) The standard error of the sample proportion is (Round to three decimal places as needed.) c) The approximate 95% confidence interval for the true proportion p by taking + 2 SEs from the sample proportion is (L (Round to three decimal places as needed.) .

Answer 1

n=250 ,x=80,(=956). a) Somple leopoban d2 = m = Bob = 10:32] 91 b) Standard error of sample Profortion arc PAC1-P) n 10.32*(1-0.39) 250 = 10.00087 = 0.029503 = 10-0307 95.). Confidence interval HYU 3 - P to SE =0.32+ 2x0.030 = 0.32 + 0.060 = 0.960 ,0.380 95.4. CI - 10:260,10.38 0