In an upstate county in New York state, county administration did a statical study on household electricity bills. The electricity bills are approximately normally distributed with a mean of $200 and a standard deviation of $33. A county clerk selected a random sample 36 electricity bills for this study. a. Using this information, compute the mean of the sampling distribution of mean for samples of size 36? b. What is the standard error of the sampling distribution of mean for samples of size 36? c. If the sample mean of the above sample is $194, what is the z-score that represents the location of this value in the sampling distribution? (round to two decimal places) d. What is the probability of getting a sample mean of 36 bills is less than $194? (round to four decimal places) e. What is the 95th percentile of sampling distribution of mean for samples of 36 bills? (round your answer to a whole number)
In an upstate county in New York state, county administration did a statical study on household electricity bills. The electricity bills are approximately
a. Using this information, compute the mean of the sampling distribution of mean for
b. What is the standard error of the sampling distribution of mean for samples of size 36?
c. If the sample mean of the above sample is $194, what is the z-score that represents the location of this value in the sampling distribution? (round to two decimal places)
d. What is the probability of getting a sample mean of 36 bills is less than $194? (round to four decimal places)
e. What is the 95th percentile of sampling distribution of mean for samples of 36 bills? (round your answer to a whole number)
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