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Sophie [7]
3 years ago
11

The federal government would like to test the hypothesis that the average age of men filing for Social Security is higher than t

he average age of women set using alphaequals0.05 with the data below. If Population 1 is defined as men and Population 2 is defined as​ women, determine the​ 90% confidence interval for the difference in population means. Men Women Sample mean 64.5 years 63.6 years Sample size 35 39 Population standard deviation 3.0 years 3.5 years A. ​(0.75, 1.05) B. ​(0.52, 1.28) C. ​(minus​0.34, ​2.14) D. ​(minus​1.37, ​3.17)
Mathematics
1 answer:
BlackZzzverrR [31]3 years ago
4 0

Answer:

C     (3²/35+3.5²/39)    For more enquiries connect [email protected] AT MY G mail account

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Write down and simplify the following algebraic expressions. The sum of −3x+5 and 7−4x is subtracted from 5x+17.
andriy [413]
Sum of the first two is:
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3 years ago
How many solutions does this equation have?
Greeley [361]

Answer:

No solution

Explanation:

-4+19-7f = -15-7

cancel terms on both sides ( add 7f on both sides)

Calculate the sum

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4 0
2 years ago
The level of CO2 emissions, f(x), in metric tons, from the town of Fairfax x years after they started recording is shown in the
Temka [501]
1) The average increase in the level of CO2 emissions per year from years 2 to 4 is:
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2) The average increase in the level of CO2 emissions per year from years 6 to 8 is:
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3) The average increase in the level of CO2 emissions per year from years 4 to 6 is:
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4) The average increase in the level of CO2 emissions per year from years 8 to 10 is:
Average=[f(10)-f(8)]/(10-8)=(39,093.47-35,458.93)/2=3,634.54/2=1,817.27 metric tons. The fourth is true.

Answer: Fourth option: The average increase in the level of CO2 emissions per year from years 8 to 10 is 1,817.27 metric tons.
7 0
3 years ago
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