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
Answers: 1
Another question on Mathematics
Mathematics, 21.06.2019 17:00
Write numerical coefficient of y² in the expression 2x² - 15xy – 7y²
Answers: 1
Mathematics, 22.06.2019 00:00
Margaret is purchasing a house for $210,000 with a 15 year fixed rate mortgage at 4.75% interest she has made a 5% down payment the house is valued at 205,000 and the local tax rate is 3.5% homeowners insurance 600 per year what are her total monthly payment
Answers: 1
Mathematics, 22.06.2019 03:00
Plzz ! if you were constructing a triangular frame, and you had wood in the length of 4 inches, 4 inches, and 7 inches, would it make a triangle? would you be able to create a frame from these pieces of wood? yes or no? = explain your mathematical thinking/show your work:
Answers: 1
Mathematics, 22.06.2019 04:50
Match each equation to the ordered pair that represents one of its solutions. 3x + 2y = 6 -5x + y = -10 x ? 4y = 8 -6x ? 5y = 30 ordered pair equation (0, -6) arrowboth (0, 3) arrowboth (4, -1) arrowboth (1, -5) arrowboth reset next unit 2 - pretest
Answers: 3
You know the right answer?
Using traditional methods it takes 99 hours to receive an advanced driving license. A new training t...
Questions
Mathematics, 25.08.2021 04:40
Biology, 25.08.2021 04:40
Mathematics, 25.08.2021 04:40
Mathematics, 25.08.2021 04:40
Mathematics, 25.08.2021 04:40
History, 25.08.2021 04:40
Computers and Technology, 25.08.2021 04:40
Geography, 25.08.2021 04:40
Mathematics, 25.08.2021 04:40
