OG详解-OG8 数学1 Q5

Choice A is correct. It’s given that the mean price of a carton of grape tomatoes in Utah was estimated to be $4.23, with an associated margin of error of $0.08. It follows that plausible values for this mean price are between $4.23-$0.08 and  $4.23+$0.08. Therefore, it’s plausible that the mean price of a carton of grape tomatoes for all locations that sell this product in Utah is between $4.15 and $4.31.
Choice B is incorrect and may result from conceptual or calculation errors. Choice C is incorrect and may result from conceptual or calculation errors. Choice D is incorrect and may result from conceptual or calculation errors.