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I have a couple of problems that I'm not sure if my answers are right and was wondering if any of you guys know stats and w/e.
1) Find the z-score that corresponds to P8, the 8th percentile.
my answer is -1.41
2) Find the z-score that has 11.9% of the distribution area to its right.
my answer 88.1
3) The average pounds of red meat a person consumes each year is 196 with a standard deviation of 22 pounds. A sample of 50 individuals are randomly selected. Use the central limit theorem to describe the sampling distribution of the sample mean.
Shape of Distribution___
Mean____ Standard Deviation_____
Find the probability that the mean amount of red meat consumed is less than 20 pounds
My answers
__/\___ lol don't know how to put a drawing up here
mean=196 stndrd dev=22 and probability=.5103
that's it, the rest I can figure out, but these, I mean I think I have them right but if they're are any experts in here or anyone that's not retarded lol can help me out that would be great. Thanks guys
1) Find the z-score that corresponds to P8, the 8th percentile.
my answer is -1.41
2) Find the z-score that has 11.9% of the distribution area to its right.
my answer 88.1
3) The average pounds of red meat a person consumes each year is 196 with a standard deviation of 22 pounds. A sample of 50 individuals are randomly selected. Use the central limit theorem to describe the sampling distribution of the sample mean.
Shape of Distribution___
Mean____ Standard Deviation_____
Find the probability that the mean amount of red meat consumed is less than 20 pounds
My answers
__/\___ lol don't know how to put a drawing up here
mean=196 stndrd dev=22 and probability=.5103
that's it, the rest I can figure out, but these, I mean I think I have them right but if they're are any experts in here or anyone that's not retarded lol can help me out that would be great. Thanks guys
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