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padilas [110]
3 years ago
11

If a relationship has practical significance, does it guarantee that statistical significance will be achieved in every study th

at examines it? Explain.
Mathematics
1 answer:
lbvjy [14]3 years ago
6 0

Answer:

  No.

Step-by-step explanation:

Different studies have different biases and confounding effects, sometimes known or discovered, sometimes not. One of the confounding effects rarely accounted for properly is the bias of the experimenter. As a consequence, statistical significance cannot be assured in the study of an effect, even though an effect is real and reliable.

___

See Cleve Baxter's book <em>Primary Perception</em> for a more in-depth discussion of experimenter bias.

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Right triangles abc and dbc with right angle c are given below. If cos(a)=15,ab=12 and cd=2, find the length of bd.
dmitriy555 [2]

see the attached figure to better understand the problem

we have that

cos(A)=\frac{1}{5} \\ AB=12\ units\\ CD=2\ units

Step 1

<u>Find the value of AC</u>

we know that

in the right triangle ABC

cos (A)=(AC/AB)\\AC=AB*cos(A)

substitute the values in the formula

AC=12*(1/5)\\ AC=2.4\ units

Step 2

<u>Find the value of BC</u>

we know that

in the right triangle ABC

Applying the Pythagorean Theorem

AB^{2} =AC^{2}+BC^{2}\\ BC^{2}=AB^{2} -AC^{2}

substitute the values

BC^{2}=12^{2} -2.4^{2}\\BC^{2}= 138.24\\ BC=11.76\ units

Step 3  

<u>Find the value of BD</u>

we know that

in the right triangle BCD

Applying the Pythagorean Theorem

BD^{2} =DC^{2}+BC^{2}

substitute the values  

BD^{2} =2^{2}+11.76^{2}

BD=11.93\ units

therefore

<u>the answer is</u>

the length of BD is 11.93 units

8 0
3 years ago
Read 2 more answers
Bottom#4<br> Which value represents the median from the box and whisker plot attached?
Andreyy89

Answer:

Step-by-step explanation:

the median is the line inside the box which is 84

8 0
4 years ago
Identify rational numbers and intergers from the following
Nina [5.8K]

Answer:

Rational: all

Integers: 4, -36, -6

Step-by-step explanation:

A rational number is a number that can be written as a fraction of integers.

All numbers shown are rational numbers.

The integers are all positive and negative whole numbers and zero.

The integers are: 4, -36, -6

6 0
3 years ago
How to change improper fraction to a mixed number​
Aleonysh [2.5K]

Answer:  

Step-by-step explanation :Answer

To chance an improper fraction into a mixed number first divide the numerator by the denominator

Example 11/5 divide 11 by 5 and you get 2.2 that means that 5 goes into 11 twice with some leftover which means the answer is going to be 2 plus a fraction

To get the fraction you multiply the denominator by the whole number you found (5*2) and subtract the numerator by that new number

5*2=10 11-10=1

Your new fraction is now 2 1/5

8 0
3 years ago
Read 2 more answers
Please help me with this question.​
Korvikt [17]

2x is what I would say but i sayy ask an expert

6 0
3 years ago
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