Answer:
A) The greater the variance within the population, the larger the sample should be.
Explanation:
The variance of a sample mean is inversely proportional to the sample size, that is, the larger the sample size the smaller the variability of the sample. When sample size increases, the range decreases and hence the variance decreases resulting in a more accurate research result with minimal experimental error.
Hence the researcher should employ a large sample size to reduce the variation in the population.
Answer: Discount
Explanation:
The scientific research is based on experimentation procedures, and the results framed are the product of maximum number of trials following the set controlled conditions. Sometimes the results obtained are opposite to what the researcher and general audience has expected. But if something proved scientifically then the sensory experiences may reject or consider the assumptions unworthy or may be discount the assumptions. As the assumptions lack credibility over the scientific evidences.
Area formula for a circle is pi *r^2
circumference is pi * d
22.6/3.14 is 7.197= diameter
radius= 3.5985
pi * (3.5985)^2 =40.66
area is about 40.66 square inches
<span>Imagine you had heard a murmur on tina. It would have been important to ask tina to change positions while auscultating the hear, since </span>it is important to determine which body position the murmur is most loudly and clearly heard.
