In studying his campaign plans, Mr. Singleton wishes to estimate the difference between men's and women's views regarding his appeal as a candidate. He asks his campaign manager to take two random independent samples and find the 98% confidence interval for the difference. A random sample of 511 male voters and 537 female voters was taken. 262 men and 117 women favored Mr. Singleton as a candidate. Find this confidence interval.
Step 3 of 4 :
Find the value of the standard error. Round your answer to three decimal places.
= sqrt ( 0.0004889 + 0.0003175 )
= 0.0661
Answer : the value of the standard error = 0.066
Answer : 98% C.I is ( 0.229 , 0.361 )
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