clusion about statistical significance. Do not make any formal calculations. Eit
ID: 3321433 • Letter: C
Question
clusion about statistical significance. Do not make any formal calculations. Either use the results provided or make subjective judgments about the results. 17) Charlie's teacher claims that he does not study and just guesses on exams. On an exam 17) with 201 true-false questions, Charlie answered 53.7% of the questions correctly. Calculations using these results show that if he were really just guessing, there would be roughly 1 chance in 7 that he would do this well. Is there statistically significant evidence against the teacher's claim that Charlie is just guessing? Why or why not?Explanation / Answer
We can assume that the chances to answer correctly on a true-false test is 50%, and 53% correct answers are fairly close to the 50% mark, but could however indicate that the test was easy.
hus we can say, No, their is no significant evidence againt teacher's claim. The test result of 53.7% is not substantially greater than 50%.
Even if Charlie were just guessing, he could easily do this well just by chance.
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