In recent years the mean number of miles driven per year by residents of a particular state was 11,568. A researcher wishes to test, at the 5% level of significance, whether the mean is different now. In a random sample of 62 drivers, the mean and sample standard deviation of the number of miles driven last year were 10,822 and 1,741, respectively.
(a) The relevant hypotheses are
(a) H0 : µ = 11, 568 Vs Ha : µ ≠11, 568 (b) H0 : µ = 10,822 Vs Ha : µ ≠10,822 (c) H0 : X = 11, 568 Vs Ha : X ≠11, 568 (d) H0 : X = 10,822 Vs Ha : X ≠10,822
(b) The value of the test statistic is about
(a) - 3.345; (b) 3.376; (c) 3.345; (d) - 2.855; (e) - 3.376
(c) The rejection region is
(a) (-[infinity],-2]U[2,[infinity]) (b) (-[infinity],-2] (c) (-[infinity],-1.96]U[1.96,[infinity]) (d) (-[infinity],-1.96] (e) (-[infinity],-1.670]
Answers (1)
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “In recent years the mean number of miles driven per year by residents of a particular state was 11,568. A researcher wishes to test, at the ...” in 📙 Mathematics if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers
You Might be Interested in
What is equivalent to 3^2 = 9
Answers (1)
A triangle has angles that measure 46 and 84 what is the third angle?
Answers (1)
How is the standard deviation of the sample mean changed when the sample size is increased from?
Answers (1)
You walk 2 miles from your house to the park and 4.5 miles from the park to the lake. Then you return home along a straight path from the lake. How many miles do you walk from the lake back to your house? What is the total distance you walk?
Answers (2)
Which answer shows these decimals written in order from greatest to least? 46.95 48.1 46.581
Answers (1)
New Questions in Mathematics
Marty's Tee Shirt & Jacket Company is to produce a new line of jackets with an embroidery of a Great Pyrenees dog on the front. There are fixed costs of $ 680 to set up for production, and variable costs of $ 41 per jacket.
Answers (1)
The annual profit of the neighborhood music store was $335,899 last year. This year the profit was 12% higher. What was this year's profit?
Answers (1)
You need to select three numbers (no more, no less), from a list to add up to thirty. here's the list of numbers (you can use them more than once) : 1, 3, 5, 7, 9, 11, 13, 15.
Answers (1)
4*7 = (4*3) + (4*4) is an example of what property
Answers (2)
100,000+4,000+800+5 in standard form
Answers (1)