Dr. Patton is a professor of English. Recently she counted the number of misspelled works in a
Group of student essays. She noted the distribution of misspelled words per essay followed the
Normal distribution with a standard deviation of 2.44 words per essay. For her Tuesday class of 44
Students, the mean number of misspelled words per essay was 6.05. Construct a 90% confidence
Interval for the mean number of misspelled words in the population of student essays.
A) 5.374 to 6.726
B) 5.161 to 6.939
C) 5.102 to 6.998
D) 5.482 to 6.618
E) 5.445 to 6.6551
Correct Answer:
Verified
Q21: Which statement(s) is/are correct about the t
Q26: A survey of 144 retail stores revealed
Q27: i. The Student t distribution has a
Q28: i. The test statistic t has n-1
Q29: i. The t distribution is positively skewed.
ii.
Q30: Recently, a university surveyed recent graduates of
Q32: Recently, a university surveyed recent graduates of
Q34: Dr. Patton is a professor of English.
Q35: A survey of 144 retail stores revealed
Q36: Dr. Patton is a professor of English.
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents