A school with a large number of students is updating its logo. Each student has designed a new logo and two teachers have each awarded a mark out of 50 for each logo. The marks awarded to a random sample of 12 students are shown in the following table. One of the students claims that Teacher 2 is awarding higher marks than Teacher 1. Carry out a Wilcoxon matched-pairs signed-rank test, at the $$\(5 \%\)$$ significance level, to test whether the data supports the claim. ........................................................................................................................................................ . ........................................................................................................................................................ . ........................................................................................................................................................ . ........................................................................................................................................................ . ........................................................................................................................................................ . ........................................................................................................................................................ . ........................................................................................................................................................ . ........................................................................................................................................................ . ........................................................................................................................................................ . ........................................................................................................................................................ . ........................................................................................................................................................ . ........................................................................................................................................................ . ........................................................................................................................................................ . ........................................................................................................................................................ . ........................................................................................................................................................ . ........................................................................................................................................................ . ........................................................................................................................................................ . ........................................................................................................................................................ . ........................................................................................................................................................ . ........................................................................................................................................................ . * 0000800000005 * It was later discovered that Teacher 1 had entered her mark for student $$\(C\)$$ incorrectly. Her intended mark was 24 not 40 . This was corrected.

Answer:

Knowledge points:

Solution: