Sarah used 3/4 pound of blueberries to make 1/2cup of jam. How many pounds would she need to make 1 cup of jam
2 answers:
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Answer:
The minimum sample needed to provide a margin of error of 3 or less is 52.
Step-by-step explanation:
The confidence interval for population mean (<em>μ</em>) is:
The margin of error is:
<u>Given:</u>
MOE = 3
<em>σ </em>= 11
The critical value for 95% confidence interval is:
**Use the <em>z</em>-table for critical values.
Compute the sample size (<em>n</em>) as follows:
Thus, the minimum sample needed to provide a margin of error of 3 or less is 52.
Call the region in the 
-
plane, bounded by 
and 
, 
. Then the volume under the given surface is
Area = 38 1/4 = 153/4
Width = 4 1/2 = 9/2
Area = Length x Width
Length = Area/Width
So divide both of them:
So the length is equal to
Width = 4 1/2 = 9/2
Area = Length x Width
Length = Area/Width
So divide both of them:
So the length is equal to