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Veronika [31]
3 years ago
15

A researcher wants to find out if there is a significant difference between men and women in the average number of tattoos that

a person has. After doing the statistical analysis, the researcher finds that the p-value is 0.003. If the chosen significance level is 0.05 (5%), which of the following statements is the best interpretation of this p-value?A. The results are statistically significant.B. The results are not statistically significant.
C. The magnitude of a p-value has no impact on statistical significance.
Mathematics
1 answer:
kifflom [539]3 years ago
8 0

Answer:

The correct option is (A).

Step-by-step explanation:

The p-value is well-defined as per the probability, [under the null-hypothesis (H₀)], of attaining a result equivalent to or more extreme than what was the truly observed value of the test statistic.

A small p-value (typically p < 0.05) specifies strong evidence against the null hypothesis (H₀), so the null hypothesis is rejected. A p-value less than 0.05 is considered as statistically significant.

A large p-value (p > 0.05) specifies fragile proof against the H₀, so the null hypothesis is failed to be rejected.

In this case the <em>p</em>-value of the test is,

<em>p</em>-value = 0.003

And the significance level of the test was,

<em>α</em> = 0.05.

p-value = 0.003 < <em>α</em> = 0.05.

The p-value less than the significance level of the test.

Thus, the results are statistically significant.

The correct option is (A).

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An investment firm wants to create a billboard that displays an enlarged $1,000,000 bill. The actual size of the bill is 2.61 in
Mandarinka [93]

We know how wide the billboard will be. Therefore, to know how much the original image should be enlarged, you must divide the final width of the billboard between the current width of the invoice.

We know both data, then we perform the operation:

48 feet /6.14 inches = 7.81 feet / inches .


Therefore the correct answer is option D. 1″ = 7.81′

For the bill to cover the billboard, the bill must be expanded by a factor of 7.81 feet long per inch long that has the original image.

3 0
3 years ago
Whts X+y x 9 +3 +4 ?
babunello [35]

Expression simplified: x+9y+7

Step-by-step explanation:

The expression that we have in this problem is:

x+y\cdot 9 +3 +4

The first type of operation that we have to solve in such expression are multiplication/division.

In this expression, there is only one multiplication, that is:

y\cdot 9 = 9y

So we can rewrite the expression as

x+9y+3+4

Now we can evaluate the sum of the similar terms: in this case, similar terms are only 3 and 4, and their sum is

3+4=7

Therefore, the expression can be rewritten as

x+9y+7

Learn more about simplifying expressions:

brainly.com/question/7014769

brainly.com/question/11007572

brainly.com/question/11334714

#LearnwithBrainly

6 0
3 years ago
Amanda exercised for 10 minutes every day in the first week, 20 minutes in the second week, 30 minutes in the third week, and 40
Misha Larkins [42]
                  Amanda           Billy
1st week       10                   5
2nd week      20                  10 
3rd week       30                  20
4th week       40                  40
<span>
A) Amanda's method is linear because the number of minutes increased by an equal number every week.</span>
common difference is 10.
1st week      0 + 10 = 10
2nd week   10 + 10 = 20
3rd week    20 + 10 = 30
4th week    30 + 10 = 40

Billy's method is exponential:
5(2)^x

1st week   5(2⁰) = 5(1) = 5
2nd week  5(2¹) = 5(2) = 10
3rd week   5(2²) = 5(4) = 20
4th week   5(2³) = 5(8) = 40
8 0
3 years ago
Read 2 more answers
What is the the value of ∣9∣
xxTIMURxx [149]

Hey there! I'm happy to help!

This symbol is an <u>absolute value</u> symbol. It means that we are looking for that number's distance from 0. There is no such thing as a negative distance; the distances are all positive, so both ∣9∣ and ∣-9∣ have a value of 9.

Have a wonderful day and keep on learning! :D

7 0
2 years ago
PLZ HELP MEEEE!!!
LiRa [457]

Answer:

D

Step-by-step explanation:

4 0
2 years ago
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