Question

The population mean and standard deviation are given below. Find the required probability and determine whether the given sample mean would be considered unusual. For a sample of n = 66, find the probability of a sample mean being less than 19.5 if ? = 20 and ? = 1.35. Click the icon to view page 1 of the standard normal table. Click the icon to view page 2 of the standard normal table. For a sample of n = 66, the probability of a sample mean being less than 19.5 if ? = 20 and ? = 1.35 is . (Round to four decimal places as needed.) Would the given sample mean be considered unusual? The sample mean be considered unusual because it has a probability that is than 5%.

          The population mean and standard deviation are given below. Find the required probability and determine whether the given sample mean would be considered unusual.
For a sample of n = 66, find the probability of a sample mean being less than 19.5 if ? = 20 and ? = 1.35.
Click the icon to view page 1 of the standard normal table.
Click the icon to view page 2 of the standard normal table.
For a sample of n = 66, the probability of a sample mean being less than 19.5 if ? = 20 and ? = 1.35 is .
(Round to four decimal places as needed.)
Would the given sample mean be considered unusual?
The sample mean be considered unusual because it has a probability that is than 5%.

The population mean and standard deviation are given below. Find the required probability and determine whether the given sample mean would be considered unusual.
For a sample of n = 66, find the probability of a sample mean being less than 19.5 if ? = 20 and ? = 1.35.
Click the icon to view page 1 of the standard normal table.
Click the icon to view page 2 of the standard normal table.
For a sample of n = 66, the probability of a sample mean being less than 19.5 if ? = 20 and ? = 1.35 is .
(Round to four decimal places as needed.)
Would the given sample mean be considered unusual?
The sample mean be considered unusual because it has a probability that is than 5%.

Added by Renee L.

Question

Please give Ace some feedback