Mathematics, 27.06.2019 02:30, cicimarie2018
Consider a random variable x that is normally distributed. complete parts (a) through (d) below. (this is a reading assessment question. be certain of your answer because you only get one attempt on this question.)
(a) if a random variable x is normally distributed, what will be the shape of the distribution of the sample mean?
(b) if the mean of a random variable x is 40, what will be the mean of the sampling distrubution of the sample mean?
(c) as the sample size n increases, what happens to the standard error of the mean?
(d) if the standard deviation of the random variable x is 25 and a random sample of size n-21 is obtained what is the standard deviation of the sampling distrubution of the sample mean?
Answers: 2
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Mathematics, 21.06.2019 19:20, hahah265
Suppose that a households monthly water bill (in dollars) is a linear function of the amount of water the household uses (in hundreds of cubic feet, hcf). when graphed, the function gives a line with slope of 1.65. if the monthly cost for 13 hcf is $46.10 what is the monthly cost for 19 hcf?
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Mathematics, 21.06.2019 23:00, emiliestinnett
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Consider a random variable x that is normally distributed. complete parts (a) through (d) below. (th...
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