Mathematics, 04.11.2019 09:31 Amandarobersonn
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a certain store has 3,000 employees working at its main location in a city and 100 employees working at a smaller location outside the city. the store manager will select a sample of 50 employees from all the employees to ask their opinions about extending store hours during the holidays. what is the advantage of selecting a stratified random sample, with location as strata, instead of a simple random sample?
the stratified sample assures the most random selection from among all selection methods.
a
the stratified sample assures that the opinions of employees from both locations will be represented.
b
the stratified sample will be less expensive to implement than a simple random sample and will save money over time.
c
the stratified sample assures employees that store hours will not be extended until their opinions are recorded.
d
there is no real advantage to stratifying because a simple random sample is always the best.
Answers: 2
Mathematics, 21.06.2019 13:20
Sherina wrote and solved the equation. x-56=230 x-56-56=230-56 x=174 what was sherina’s error? sherina’s work is correct. sherina only needed to subtract 56 from 230. sherina made a subtraction error when subtracting 56 from 230. sherina should have added 56 to both sides of the equation.
Answers: 2
Mathematics, 21.06.2019 19:20
Brainliest ! which of the coordinates are not of th vertices of the feasible region for the system of inequalities y≤4,,x≤5,x+y> 6 a(2,4) b(0,6) c(5,4) d(5,1)
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a certain store has 3,000 employees working at its main location in a city and 100...
a certain store has 3,000 employees working at its main location in a city and 100...
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