Answer:
8.2+/-0.25
= ( 7.95, 8.45) years
the 95% confidence interval (a,b) = (7.95, 8.45) years
Step-by-step explanation:
Confidence interval can be defined as a range of values so defined that there is a specified probability that the value of a parameter lies within it.
The confidence interval of a statistical data can be written as.
x+/-zr/√n
Given that;
Mean x = 8.2 years
Standard deviation r = 1.1 years
Number of samples n = 75
Confidence interval = 95%
z value(at 95% confidence) = 1.96
Substituting the values we have;
8.2+/-1.96(1.1/√75)
8.2+/-1.96(0.127017059221)
8.2+/-0.248953436074
8.2+/-0.25
= ( 7.95, 8.45)
Therefore the 95% confidence interval (a,b) = (7.95, 8.45) years
Answer:
a. ⅓ × 4
b. ⅖ × 3
c. ⅙ × 3
Step-by-step explanation:
i think
The answer to the question is d
Answer:
$2,100
Step-by-step explanation:
In two weeks there is 14 days so, I times 150 by 14 which is 2100.
Answer: The solution to this is <u><em>y=10x-4</em></u>
Step-by-step explanation:
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