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11Alexandr11 [23.1K]
3 years ago
5

In the accounting department at a university, 60% of the students are women and 250 of the students are men. How many accounting

students are there in all?
Mathematics
1 answer:
aalyn [17]3 years ago
8 0
There would be 625 students because 40% of students would be 250. If you divide 250 by 2 you get 125 which is 20%. Then you would multiply 125 and 5 and get 625.
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A manager of the credit department for an oil company would like to determine whether the mean monthly balance of credit card ho
valkas [14]

Answer:

c) t-test of population mean

Explanation:

The t-test statistic is used in hypothesis testing. Here we would use a one sample t test to test our hypothesis. The one sample t test measures the statistical difference between the hypothesized mean and the sample mean. In a one sample t test or single sample t test, a test variable is measured against a test value.

Example we compare our test variable to the hypothesized mean value $75 above.

The t test is used instead of z score when standard deviation is unknown.

Using the t test, we either accept or reject the null hypothesis given alternative hypothesis.

6 0
2 years ago
a newborn boa constrictor measure 18 inches long. An adult boa constrictor measures 9 times the lenght of the newborn plus 2 inc
Sunny_sXe [5.5K]
Newborn = 18 inches
adult boa = 9 * 18 + 2 = 164 inches

Since all the information is given, then merely put the necessary facts in order. 

Had the length of the newborn been unknown, it would have been represented by x.

9x + 2 = 164
9x = 164 - 2
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8 0
3 years ago
Read 2 more answers
Find the area of this shape.
aniked [119]

Answer:

Step-by-step explanation:

Bottom triangle

Area = b * height

b = 4 + 4 = 8 cm

h = 5.75

Area = 1/2 * 5.75 * 8

Area = 23 cm^2

Trapezoid

b1 = 8

b2 = 4

h = 2

Area = (b1 + b2)*h/ 2

Area = (8 + 4)*2 /2

Area = 12

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7 0
2 years ago
HELP ME PLEASE I NEED HELP​
Olin [163]

Step-by-step explanation:

You should prolly subtract 2 from both sides first.

So you get, -|2/5x + 3| > -1 2/5

  • Add three to both sides
  • -|2/5x| = -1 2/5
  • Do -1 and 2/5 divided by 2/5 to get -3.5, x > -3.5

One of the answers is x > -3.5 but you need to switch the sign to less than and make the other side the opposite.

-( \frac{2}{5}x + 3 ) < 1 \frac{2}{5}

You see that, switched the sign and made whats on the right side opposite. So now solve for x again but with this new equation. Also, the parentheses are absolute value signs

Subtract 3 from both sides

-|2/5x| < -1 and 3/5

Divide 2/5 from each side to get x < -4

I hope I'm correct, my bad if I'm wrong

6 0
3 years ago
Read 2 more answers
Which integer represents the situation: A withdrawal of $367?
juin [17]

Answer:

-357

Step-by-step explanation:

Withdrawal is taking something so a withdrawal of $357 is saying taking away $357 which is -357

Hope this helps

3 0
2 years ago
Read 2 more answers
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