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Ghella [55]
3 years ago
14

You are doing research on balance and fitness. To complete this research you will need a watch with a second hand. Identify a ra

ndom sample of n = 12 men and n = 8 women. You must answer this question: How do you establish that this sample is truly random?
Mathematics
1 answer:
Dafna1 [17]3 years ago
7 0

Answer:

Step-by-step explanation:

In order to establish that the sample is truly random you need to obtain two main factors. First, is making sure that the random sample of both groups chosen (men and women) are equal in proportion to the overall population. Meaning both groups must be the same percentage of the overall population of the same gender. The second factor that you need to make sure of is that all chosen individual's had the exact same probability of being chosen from the population and no external factor influenced the probability of them being chosen for the study.

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The road that leads to the beach is 3 miles long. What is the length in kilometers?
Airida [17]

1) Let's convert it to kilometers, using for that a Rule of three

1 mile ---------- 1.600 km

3 -----------------x

2) Multiplying it crossed

3*1.600=1x

4800=x

x = 48

4 0
1 year ago
Hurry Please). The function f (x) models the value of goods that are imported into the United states, where x is the number of y
nata0808 [166]

Answer:

Answer 1: 15

Answer 2: 11.55

Answer 3: 1985

Step-by-step explanation:

your welcome (*_*)

8 0
3 years ago
Maria tests the effectiveness of an anti-depression drug by recruiting 500 participants and randomly assigning half e participan
Nady [450]

Answer:

D. The small p value and the small effect size suggest that the observed difference between the drug placebo groups are likely to be due to sampling error. This study should be replicated with a larger sample size.

Step-by-step explanation:

The p value is determined for any test before making a conclusion. If the p-value is smaller than critical value then we reject the null hypothesis which means that drug is not effective for the reducing depression. A very small p-value usually lesser than 0.05 indicates strong evidence against the null hypothesis.

6 0
2 years ago
Which algebraic expression is a polynomial? 4x2 – 3x + StartFraction 2 Over x EndFraction –6x3 + x2 – StartRoot 5 EndRoot 8x2 +
rusak2 [61]

Answer:

The Answer is B

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
The question is<br>what is the distribution of the graph? explain how you know​
natka813 [3]

Answer:

Pyramid Distribution

Step-by-step explanation:

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