In a survey of 2480 golfers, 15% said they were left-handed. The survey's margin of error was 3%. Construct a confidence interval for the proportion of left-handed golfers. a. (0.12, 0.18) b. (0.18, 0.21) С. (0.12, 0.15) d. (0.11, 0.19)

Three hundred randomly selected people were asked a Yes or No question.  The resulting 95% confidence interval for the proportion of Yes responses in the population is(.201, .299).  How many people in the sample of 300 responded Yes? ______

Tina catches a 14-pound bass.  She does not know the population mean or standard deviation.  So she takes a sample of five friends and they say the last bass they caught was 9, 12, 13, 10, and 10 pounds.  Find the t and calculate a 95% (α = .05) confidence interval.

A survey​ asked, "How many tattoos do you currently have on your​ body?" Of the 1205 males​ surveyed, 199 responded that they had at least one tattoo. Of the 1030 females​ surveyed, 127 responded that they had at least one tattoo. Construct a 99​% confidence interval to judge whether the proportion of males that have at least one tattoo differs significantly from the proportion of females that have at least one tattoo. Interpret the interval. Let p1 represent the proportion of males with tattoos and p2 represent the proportion of females with tattoos. Find the 99​% confidence interval for p1−p2.   The lower bound is nothing. The upper bound is nothing. ​(Round to three decimal places as​ needed.)