Weights of women in one age group are normally distributed with a standard deviation σ of 18 lb. A researcher wishes to estimate
the mean weight of all women in this age group. Find how large a sample must be drawn in order to be 90 percent confident that the sample mean will not differ from the population mean by more than 2.0 lb.
1 answer:
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Answer:
c
Step-by-step explanation:
because I had a test on these
There are 50 States so if the no. of states in which company A operates is 36 then the no. of states it does operate = 50 - 36 = <em><u>14</u></em>
14/50 = 7/25 states does not have a store operated by company A
Answer:
36:90
Step-by-step explanation:
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Step-by-step explanation:
Given
[ 6 + ( 10- 8 ) *7 ] + 5
= [ 6 + 2 * 7] + 5
= [ 6 + 14 ] + 5
= 20 + 5
= 25
Answer:
y = -0.5x - 3.5
Explanation:
Take two points: (1, -4), (3, -5)
Find slope:
Equation:
