A nutritionist claims that the proportion of females who consume too much saturated fat is lower than the proportion of males who consume too much saturated fat. In interviews with 513 randomly selected females, she determines that 300 consume too much saturated fat. In interviews with 564 randomly selected males, she determines that 391 consume too much saturated fat. Based upon this information, calculate the estimate of the difference of two proportions for saturated fat intake for females and males (pf - Pm). O a. -0.2303 O b.-0.1085 Oc.-0.2675 O d.-0.91

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