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Fed [463]
2 years ago
14

Which measure represents the standard deviation of the sample means and is used in place of the population standard deviation wh

en
the population parameters are unknown?
Mathematics
1 answer:
Ksivusya [100]2 years ago
4 0

The measure represents the standard deviation of the sample means and is used in place of the population standard deviation when the population parameters are unknown is; t-test.

<h3>Which measure is used when the population parameters are unknown?</h3>

A hypothesis test for a population mean when In the case that the population standard deviation, σ, is unknown, carrying out a hypothesis test for the population mean is done in similarly like the population standard deviation is known. A major distinctive property is that unlike the standard normal distribution, the t-test is invoked.

Read more on t-test;

brainly.com/question/6501190

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What is the quotient if <br> 1/3 of 10 is divided by 1/7 of 8/12? Reduce if possible.
MrMuchimi

Answer:

1/35

Step-by-step explanation:

1/3 of 10 (of means multiply)

1/3 times 10 is 10/3

1/7 of 8/12=2/21

2/21 divided by 10/3

use keep change flip

2/21 divided by 10/3 equals 2/21* 3/10

1/35 is the answer

6 0
3 years ago
Triangle A B C is shown. Angle B C A is a right angle. The length of hypotenuse B A is 9.8 inches, the length of C B is 6.3 inch
german

Answer:

\angle B=\cos^{-1}\left(\dfrac{6.3}{9.8}\right)\\ \\\angle B=\sin^{-1}\left(\dfrac{7.5}{9.8}\right)

Step-by-step explanation:

Consider right triangle ABC with right angle C.

In this triangle,

  • BA = 9.8 in
  • CB = 6.3 in
  • CA = 7.5 in

Write trigonometric functions:

\cos \angle B=\dfrac{BC}{AB}=\dfrac{6.3}{9.8}\\ \\\sin \angle B=\dfrac{AC}{AB}=\dfrac{7.5}{9.8}

Hence,

\angle B=\cos^{-1}\left(\dfrac{6.3}{9.8}\right)\\ \\\angle B=\sin^{-1}\left(\dfrac{7.5}{9.8}\right)

7 0
3 years ago
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Find the theoretical probability for rolling 6 as well as the probability for a 1
ale4655 [162]
6 is one of the six total sides on a dice. 

P(6)=1/6

1 is one of the six total sides on a dice. 

P(1)=1/6
3 0
3 years ago
Solve for x<br><br> x^2-3x+2=0
cricket20 [7]

Answer:

x=1,2

Step-by-step explanation:

x^2-3x+2=0

(x-1)(x-2)

x-1=0

x-2=0

x=1,2

6 0
3 years ago
Simplify and give the answer in standard form: (3/8+5/12) ÷ (8/-15 x 27/16)
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3 years ago
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