STATE: A high‑school teacher in a low‑income urban school in Worcester, Massachusetts, used cash incentives to encourage learning in his AP Statistics class. In 2010, 1515 of the 6161 students enrolled in his class scored a 55 on the AP Statistics exam. Worldwide, the proportion of students who scored a 55 in 2010 was 0.15.0.15. Is this evidence that the proportion of students who would score a 55 on the AP Statistics exam when taught by the teacher in Worcester using cash incentives is higher than the worldwide proportion of 0.15?of 0.15? SOLVE: Find the sample proportion. Give your answer to four decimal places. ?̂ = Find the test statistic ?. Give your answer to two decimal places. ?= Find the ?-valueP-value associated with the ?z statistic. Give your answer to four decimal places. ?-value:
STATE: A high‑school teacher in a low‑income urban school in Worcester, Massachusetts, used cash incentives to encourage learning in his AP Statistics class. In 2010, 1515 of the 6161 students enrolled in his class scored a 55 on the AP Statistics exam. Worldwide, the proportion of students who scored a 55 in 2010 was 0.15.0.15. Is this evidence that the proportion of students who would score a 55 on the AP Statistics exam when taught by the teacher in Worcester using cash incentives is higher than the worldwide proportion of 0.15?of 0.15?
SOLVE: Find the sample proportion. Give your answer to four decimal places.
Find the test statistic ?. Give your answer to two decimal places.
Find the ?-valueP-value associated with the ?z statistic. Give your answer to four decimal places.
Trending now
This is a popular solution!
Step by step
Solved in 4 steps
