Answer:

Step-by-step explanation:
-For a known standard deviation, the sample size for a desired margin of error is calculated using the formula:

Where:
is the standard deviation
is the desired margin of error.
We substitute our given values to calculate the sample size:

Hence, the smallest desired sample size is 23
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11.2 * 1.4 = 15.68
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Answer:
awe can i have all of your points??
Step-by-step explanation:
Answer:
m=12
Step-by-step explanation:
8m=4m+48 subtract 4m from both sides
4m=48 divide both sides by 4 to get m alone
m=12