Mathematics
Mathematics, 02.06.2021 20:00, dlow4974

Using traditional methods it takes 99 hours to receive an advanced driving license. A new training technique using Computer Aided Instruction (CAI) has been proposed. A researcher used the technique on 190 students and observed that they had a mean of 98 hours. Assume the population variance is known to be 49. Is there evidence at the 0.05 level that the technique reduces the training time? State the null and alternative hypotheses.
Find the value of the test statistic. Round your answer to two decimal places

answer
Answers: 1

Other questions on the subject: Mathematics

image
Mathematics, 21.06.2019 19:00, alaina3792
Lucy is a dress maker. she sews \dfrac47 7 4 of a dress in \dfrac34 4 3 hour. lucy sews at a constant rate. at this rate, how many dresses does lucy sew in one hour? include fractions of dresses if applicable
Answers: 3
image
Mathematics, 21.06.2019 21:00, almasahagung
Can someone tell me if this is perpendicular? !
Answers: 2
image
Mathematics, 21.06.2019 22:50, memester74
Which statement accurately describes how to perform a 90° clockwise rotation of point a (1,4) around the origin?
Answers: 2
image
Mathematics, 22.06.2019 02:00, CJunc95801
The statement tan theta= -12/5, csc theta=-13/12, and the terminal point determained by theta is in quadrant two
Answers: 3
Do you know the correct answer?
Using traditional methods it takes 99 hours to receive an advanced driving license. A new training t...

Questions in other subjects:

Konu
Biology, 27.01.2021 04:30
Konu
Biology, 27.01.2021 04:30
Konu
Mathematics, 27.01.2021 04:30