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A pilot study examining weight-bearing exercise and bone density detect an effect size of 0.8. You are planning the next study and this means option(d) i.e, you will find a clinically significant effect.
A pilot study, also known as a pilot project, test, or experiment, is a small-scale preparatory study carried out to assess the viability, duration, cost, and adverse events as well as to enhance the study design before carrying out a full-scale research project.
One benefit of performing a pilot study is that it may provide early warning about potential failure areas for the main research project, potential protocol violations and if suggested procedures or instruments are appropriate or overly complicated. Pilot studies are scaled-down versions of proposed studies that are used to gauge their viability and identify areas for improvement. They are useful in spotting possible problems early so that they can be fixed without committing to a lengthy and expensive inquiry.
The complete question is:
A pilot study examining weight-bearing exercise and bone density detect an effect size of 0.8. You are planning the next study and know this means: a. If you have a small sample you will overestimate the effect
b. If you enroll a large sample you may be spending more than you need to c. If you have a small sample you will not have enough power to detect this effect size
d. You will find a clinically significant effect
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Can not be determined
BMR is known as Basal Metabolic Rate which requires information about person's height, weight, age and gender to determine the number of calories burned by a person in a day.
But here only number of calories i.e. 1300 is given which is not enough to find out Alex's Total Energy Expenditure (TEE) as there is no detail about his height, weight and age is given.
Average BMR in the USA:
For Women it is 1493 calories.
For Men it is 1662 calories.
BMR is different from BMI (Body Mass Index) because to find out body mass index only the data related to height and weight is required.
and your welcome!
Answer:
The length is 28.656 m and the width is 14.656 m
Explanation:
<u><em>The question in English is</em></u>
The area of a basketball court is 420 m² if the length is 14 meters more than the width, what are its dimensions?
Let
L ----> the length of the basketball court
W ---> the width of the basketball court
we know that
The area of the of rectangular court is
we have
so
----> equation A
----> equation B
substitute equation B in equation A and solve for W
Solve the quadratic equation by graphing
The solution is 
see the attached figure
Find the value of L
therefore
The dimensions are
The length is 28.656 m and the width is 14.656 m
