Answer:
1.1264
Step-by-step explanation:
Given : An experiment using 35 guinea pigs is set up to study the weight of the pigs after injecting them with a drug.
To Find: If the population mean is 23.5 grams with a standard deviation of 3.4 grams, what is the margin of error of the sample mean?
Solution:
n = 35

Confidence interval = 95%. So, z =1.96
Margin of error = 
Margin of error = 
Margin of error = 
Hence the margin of error of the sample mean is 1.1264.
Answer:
5 hours
Step-by-step explanation:
15/3=5
The new perimeter will be 3 times the old perimeter.
Original perimeter:
2(8+7) = 2(15) = 30 yds
New perimeter once they are tripled:
3 x 8 = 24
3 x 7 = 21
2(24+21) = 2(45) = 90 yds
30 x 3 = 90
Answer:
4n
Step-by-step explanation:
you multiply 4 x n= 4n
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