The mean weight of a Hershey's Candy bar is 1.55 oz, with a standard deviation of 0.02 oz. If the corporation makes 10,000 candy bars in one shift, how many should weigh less than the 1.55 ounces?

Question

anonymous · Answer

have you done confidence intervals yet?

anonymous · Answer

??? no. it's just a chapter over standard deviation in math 118.

anonymous · Answer

the short answer is zero but you can expand on that a lot more

anonymous · Answer

would you mind explaining the answer a bit more? why is it zero?

anonymous · Answer

the reason i said zero is because their goal is to make the candy bars at the 1.55 ounces so if they are not getting them to that weight they are messing up. So Standard devation is a measure of viarance or distance away from the mean (1.55g) so knowing that if we take that info and look at the properties that govern distrubtion we can find a certian amount of info about the amount of data points in the 1 standard deviation area (depending on if it's normaly distrubted or not) so you can expect 64% to fall in that range. So given that info i don't really like the way that this question was writen.

anonymous · Answer

thanks for the help. and you're not the only one that hate's this question.