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=68​, find the probability of a sample mean being less than 19.5 if μ=20 and σ=1.27.   LOADING... Click the icon to view page 1 of the standard normal table. LOADING... Click the icon to view page 2 of the standard normal table. For a sample of n=68​, the probability of a sample mean being less than 19.5 if μ=20 and σ=1.27 is nothing. ​(Round to four decimal places as​ needed.) Would the given sample mean be considered​ unusual?   The sample mean ▼   would not would be considered unusual because it has a probability that is ▼   greater less than​ 5%.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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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=68​,
find the probability of a sample mean being less than
19.5
if
μ=20
and
σ=1.27.
 
LOADING...
Click the icon to view page 1 of the standard normal table.
LOADING...
Click the icon to view page 2 of the standard normal table.
For a sample of
n=68​,
the probability of a sample mean being less than
19.5
if
μ=20
and
σ=1.27
is
nothing.
​(Round to four decimal places as​ needed.)
Would the given sample mean be considered​ unusual?
 
The sample mean
 
would not
would
be considered unusual because it has a probability that is
 
greater
less
than​ 5%.
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