12) A researcher measures the amount of sugar in several cans of the same soda. The...
12) A researcher measures the amount of sugar in several cans of
the same soda. The mean is 39.01 with a standard deviation of 0.5.
The researcher randomly selects a sample of 100.
Find the sum with a z-score of −2.4. (Enter an exact
number as an integer, fraction, or decimal.)
Homework Answers
Solution :
Given that ,
mean = 
= 39.01
standard deviation = 
= 0.5
n = 100
= 39.01
= /
n = 0.5/
100=0.05
= z =-2.4
= z *
+
= -2.4*0.05+39.01
= 38.89
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