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musickatia [10]
3 years ago
11

A researcher has a hypothesis that a specific drug may have a higher prevalence of side effects among members of the African Ame

rican population than members of the Caucasian population. Which statistical technique might the researcher want to use when designing a study to test their hypothesis
A. Stratification
B. Crossover matching
C. Matching
D. Randomization
Mathematics
1 answer:
kondaur [170]3 years ago
5 0

Answer:

A. Stratification

Step-by-step explanation:

Stratified random sampling is used when the researcher wants to highlight a specific subgroup within an entire population.

Stratification technique is mainly used to reduce the population differences and to increase the efficiency of the estimates. In this method the population is divided into a number of subgroups or strata.

Each strata should be so formed such that they are homogeneous as far as possible.

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Step-by-step explanation:

(3+-9)/2=-3

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The exchange rate between non-fixed currencies continuously fluctuates. The following table shows the exchange rate of pounds st
liubo4ka [24]

The <em>correct answer</em> is:

B) INS 38.35

Explanation:

The day with the best exchange rate is Friday; the rate is 1:6.1715. Converting 88.65£ with this rate, we have:

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Since he is charged an 8% surcharge, he gets to keep 100%-8% = 92% = 92/100 = 0.92 of this:

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The difference between Friday and Wednesday is:

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7 0
3 years ago
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All sides of an equilateral triangle are equal, so all three sides are 9 cm.
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4 years ago
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