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Elodia [21]
3 years ago
5

A random sample of 12 college graduates revealed that they worked an average of 5.5 years on the job before being promoted. The

sample standard deviation was 1.1 years. Using the 95% level of confidence, what is the confidence interval for the population mean?
Mathematics
1 answer:
Hoochie [10]3 years ago
6 0

Answer:

90%

Step-by-step explanation:

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velikii [3]

Answer:

The answer is 15 units.

Step-by-step explanation:

If you count the number of units from point A up to the same Y coordinate as point B, the amount of units is 9.

Then, the number of units from that point over to point B is 12 units.

Using this information, you can use the Pythagorean theorem to find that 9 squared is 81, 12 squared is 144, add 144 and 81 to get 225, and then you can find the square root of 225 which equals the answer of 15 units.

5 0
3 years ago
Pls help I need a good grade on this I’ll brainlest
sp2606 [1]
-10.4


subtract 5.2 on each side because it’s the inverse operation

hope this helps!
4 0
3 years ago
Read 2 more answers
14x+10y=72 14x+4y=96 Solve the following system of equations using any method
Anarel [89]
    14x + 10y = 72
    14x +   4y = 96
                6y = -24
                 6       6
                  y = -4
    14x + 10y = 72
14x + 10(-4) = 72
       14x - 40 = 72
             + 40 + 40
              14x = 112
               14      14
                  x = 8
            (x, y) = (8, -4)
5 0
4 years ago
If mark gets 41 out of 55 questions on a test what equation would he use to determine the percent correct
Reil [10]

Answer:

A

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Sergio consumes an energy drink that contains caffeine. After consuming the energy drink, the amount of caffeine in Sergio's bod
umka2103 [35]

Answer:

0.5158

Step-by-step explanation:

The exponential decay of a given material is used to describe the process by which a material decreases in size and amount over a specific period of time. The material will decay with respect to its decay factor. Therefore, if the 10-hour decay factor is approximately 0.2661, the 5-hour growth/decay factor will be: (0.2661)^(5/10) = (0.2661)^0.5 = 0.5158.

6 0
3 years ago
Read 2 more answers
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