BUAL 2650 EXAM QUESTIONS AND ANSWERS VERIFIED LATEST UPDATE

4/15/25, 10:43
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BUAL 2650 EXAM QUESTIONS AND ANSWERS
VERIFIED LATEST UPDATE
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Practice questions for this set


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the set of objects that we actually have data on



Select the correct term




Is the sample proportion the same from
1Sample
2sample to sample?




3CI and hypothesis test similarities 4Sample proportions are just
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Terms in this set (51)


Population the set of all objects or individuals we wished we had data on (e.g. US adults)

Sample the set of objects that we actually have data on

Sample proportions are just point estimates
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the statistic calculated from sample data used to estimate the true
point estimate definition
unknown value in the population

Is the sample proportion the same No
from sample to sample?

Advantage of sample proportion easy calculation

Sample Proportion Formula p̂ = x/n

the sample proportion does not equal the population, but does it it
Disadvantage of sample proportion
right on average

The difference between the sample proportion and the population;
Standard Deviation Definition
how much our sample proportion will be off by

Standard Deviation Formula square root of pq/n , where q=1 - p

95% confidence interval p̂ ± 2•SD(p̂ ), where the upper boundary is + and the lower boundary is -



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