MAT 121: Exam 3 questions well
answered graded
Independent Samples for difference of means: - correct answer ✔✔ two separate groups that
are comparing the difference of the means
paired sample for difference of means - correct answer ✔✔ Measuring the same people
Calculator input for independent sample for difference of means (confidence intervals) - correct
answer ✔✔ 2-sampTint
Calculator input for paired sample for difference of means (confidence intervals) - correct
answer ✔✔ Enter data into List 1 and List 2; Then Subtract them for List 3. Go to Tinterval and
make sure L3 is in there and confidence interval
when would you use paired sampling? - correct answer ✔✔ when the individuals/objects are
the same OR when objects are matched and considered the same
How to interpret confidence intervals for paired and independent sampling? - correct answer
✔✔ If it comes out to be positive it means that the first group/number is bigger. If it comes out
negative it means that the 2nd number is bigger.
the difference between two proportions calculator input - correct answer ✔✔ 2-PropZint
When is something said to be inconclusive - correct answer ✔✔ when a two-sample confidence
interval crosses 0; Meaning one is positive and one is negative; 1 says its larger and the other is
saying its larger
answered graded
Independent Samples for difference of means: - correct answer ✔✔ two separate groups that
are comparing the difference of the means
paired sample for difference of means - correct answer ✔✔ Measuring the same people
Calculator input for independent sample for difference of means (confidence intervals) - correct
answer ✔✔ 2-sampTint
Calculator input for paired sample for difference of means (confidence intervals) - correct
answer ✔✔ Enter data into List 1 and List 2; Then Subtract them for List 3. Go to Tinterval and
make sure L3 is in there and confidence interval
when would you use paired sampling? - correct answer ✔✔ when the individuals/objects are
the same OR when objects are matched and considered the same
How to interpret confidence intervals for paired and independent sampling? - correct answer
✔✔ If it comes out to be positive it means that the first group/number is bigger. If it comes out
negative it means that the 2nd number is bigger.
the difference between two proportions calculator input - correct answer ✔✔ 2-PropZint
When is something said to be inconclusive - correct answer ✔✔ when a two-sample confidence
interval crosses 0; Meaning one is positive and one is negative; 1 says its larger and the other is
saying its larger
