PSTAT 5LS Final Exam Questions With
correct Answers
p |hat |- |VERIFIED |ANSWER✔✔--denotes |the |sample |proportion |
=x/n
Sampling |distribution |of |p |hat |- |VERIFIED |ANSWER✔✔-as |the |sample |size |increases, |the |sampling |
distribution |becomes |norma
Check |binomial |criteria |- |VERIFIED |ANSWER✔✔-np> |10
n(1-p).10
Steps |in |a |hypothesis |test |- |VERIFIED |ANSWER✔✔-1. |What |is |the |appropriate |distribution?
2. |Define |parameter |and |random |variable |of |interest
3. |State |null |and |alternative |hypothesis |and |identify |the |claim
4. |What |is |the |value |of |the |test |statistic?
5. |What |is |the |p-value?
6. |For |an |alpha |value |of |0.05, |are |the |results |statistically |significant?
7. |Report |conclusion
Test |statistic |for |sample |proportion |- |VERIFIED |ANSWER✔✔-P |hat=x/n |
-proportion |of |sample |successes
Standardized |test |statistic |- |VERIFIED |ANSWER✔✔-z=(p |hat-p)/(((p(1-p))/n)^0.5)
Left |endpoint |- |VERIFIED |ANSWER✔✔-(p1 |hat-p2hat)-E
Right |endpoint |- |VERIFIED |ANSWER✔✔-(p1 |hat-p2hat)+E
correct Answers
p |hat |- |VERIFIED |ANSWER✔✔--denotes |the |sample |proportion |
=x/n
Sampling |distribution |of |p |hat |- |VERIFIED |ANSWER✔✔-as |the |sample |size |increases, |the |sampling |
distribution |becomes |norma
Check |binomial |criteria |- |VERIFIED |ANSWER✔✔-np> |10
n(1-p).10
Steps |in |a |hypothesis |test |- |VERIFIED |ANSWER✔✔-1. |What |is |the |appropriate |distribution?
2. |Define |parameter |and |random |variable |of |interest
3. |State |null |and |alternative |hypothesis |and |identify |the |claim
4. |What |is |the |value |of |the |test |statistic?
5. |What |is |the |p-value?
6. |For |an |alpha |value |of |0.05, |are |the |results |statistically |significant?
7. |Report |conclusion
Test |statistic |for |sample |proportion |- |VERIFIED |ANSWER✔✔-P |hat=x/n |
-proportion |of |sample |successes
Standardized |test |statistic |- |VERIFIED |ANSWER✔✔-z=(p |hat-p)/(((p(1-p))/n)^0.5)
Left |endpoint |- |VERIFIED |ANSWER✔✔-(p1 |hat-p2hat)-E
Right |endpoint |- |VERIFIED |ANSWER✔✔-(p1 |hat-p2hat)+E