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BSTA midterm Questions and Correct Answers (100% Pass)

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t test use compare 2 means ANOVA and covariance use compare more than 2 means Simple and linear regression use when outcome is continuous a B s u x-bar o s n Master01 | November, 2024/2025 | Latest update 1 | P a g e | © copyright 2024/2025 | Grade A+ a-alpha type 1 error B-...

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  • November 20, 2024
  • 59
  • 2024/2025
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  • BSTA
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1|Page | © copyright 2024/2025 | Grade A+




BSTA midterm Questions and
Correct Answers (100% Pass)
t test use


✓ compare 2 means




ANOVA and covariance use


✓ compare more than 2 means




Simple and linear regression use


✓ when outcome is continuous




a


B


s


u


x-bar


o


s


n


Master01 | November, 2024/2025 | Latest update

, 1|Page | © copyright 2024/2025 | Grade A+

✓ a-alpha type 1 error

✓ B-beta type 2 error

✓ s-delta difference

✓ u- Mu population mean

✓ x-bar- x-bar sample mean

✓ o-sigma sample s.d.

✓ s- s sample s.d.

✓ n- n sample size




variable


✓ something that is measured, controlled, or manipulated; measurable

attributes




4 categories of variables


✓ nominal

✓ ordinal

✓ interval

✓ ratio




nominal


Master01 | November, 2024/2025 | Latest update

, 1|Page | © copyright 2024/2025 | Grade A+

✓ qualitative; ex. gender, race, color, blood type, city




ordinal


✓ rank; ex. dislike, like, indifferent

✓ stage of cancer, performance status, class of heart failure




interval


✓ rank measured items and quantify and compare sizes of differences

between them

✓ ex. temp, temp of 40 degrees is higher than 30 degrees

✓ increase from 20 degrees to 40 degrees is twice as much as increase

from 30 degrees to 40 degrees

✓ -equal distance b/w points but no real 0 point

✓ -IQ




Ratio




Master01 | November, 2024/2025 | Latest update

, 1|Page | © copyright 2024/2025 | Grade A+

✓ all properties of interval, but has identifiable absolute zero point, plus

allows for statements like x is 2 times more than y

✓ ex. time or space

✓ tempe, F or C, is not ratio. a temp of zero does not mean no tempo

✓ -temp of 100C is not twice as hot as 50C b/c C is not a ratio variable

✓ ex. age, height, weight, enzyme activity are ratio

✓ -most stat data does not distinguish b.w. ratio and interval




interval and ratio


✓ quantitative




nominal and ordinal


✓ qualitative




item


frequ distribution


median and percentiles


add & subtract


mean, s.d., se


ratio or CV

Master01 | November, 2024/2025 | Latest update

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