Question 1115806: The accompanying data table lists measured voltage amounts supplied directly to a family's home. The power supply company states that it has a target power supply of 120 volts. Using those home voltage amounts, test the claim that the mean is 120 volts. Use a 0.10 significance level.
What are the null and alternative hypotheses?
A. Upper H 0: mu not equals 120
Upper H 1: mu equals 120
B. Upper H 0: mu equals 120
Upper H 1: munot equals120
Your answer is correct.C. Upper H 0: mu equals 120
Upper H 1: mugreater than120
D. Upper H 0: mu not equals 120
Upper H 1: mugreater than120
Calculate the test statistic.
83.682 (Round to three decimal places as needed.)
What is the range of values for the P-value?
Choose the correct answer below.
A. 0.01 less than Upper P dash value less than 0.025
B. 0.05 less than Upper P dash value less than 0.10
C. 0.10 less than Upper P dash value less than 0.20
D. Upper P dash value greater than 0.20
E. 0.025 less than Upper P dash value less than 0.05
F. Upper P dash value less than 0.01
Your answer F is correct.
Identify the critical value(s).
_____
(Round to three decimal places as needed. Use a comma to separate answers as needed.)
This is the table of critical values to help solve the problem
t distribution: Critical t values
Area in One Tail
0.005 0.01 0.025 0.05 0.10
Degrees of Freedom Area in Two Tails
0.01 0.02 0.05 0.10 0.20
1 63.657 31.821 12.706 6.314 3.078
2 9.925 6.965 4.303 2.920 1.886
3 5.841 4.541 3.182 2.353 1.638
4 4.604 3.747 2.776 2.132 1.533
5 4.032 3.365 2.571 2.015 1.476
6 3.707 3.143 2.447 1.943 1.440
7 3.499 2.998 2.365 1.895 1.415
8 3.355 2.896 2.306 1.860 1.397
9 3.250 2.821 2.262 1.833 1.383
10 3.169 2.764 2.228 1.812 1.372
11 3.106 2.718 2.201 1.796 1.363
12 3.055 2.681 2.179 1.782 1.356
13 3.012 2.650 2.160 1.771 1.350
14 2.977 2.624 2.145 1.761 1.345
15 2.947 2.602 2.131 1.753 1.341
16 2.921 2.583 2.120 1.746 1.337
17 2.898 2.567 2.110 1.740 1.333
18 2.878 2.552 2.101 1.734 1.330
19 2.861 2.539 2.093 1.729 1.328
20 2.845 2.528 2.086 1.725 1.325
21 2.831 2.518 2.080 1.721 1.323
22 2.819 2.508 2.074 1.717 1.321
23 2.807 2.500 2.069 1.714 1.319
24 2.797 2.492 2.064 1.711 1.318
25 2.787 2.485 2.060 1.708 1.316
26 2.779 2.479 2.056 1.706 1.315
27 2.771 2.473 2.052 1.703 1.314
28 2.763 2.467 2.048 1.701 1.313
29 2.756 2.462 2.045 1.699 1.311
30 2.750 2.457 2.042 1.697 1.310
31 2.744 2.453 2.040 1.696 1.309
32 2.738 2.449 2.037 1.694 1.309
33 2.733 2.445 2.035 1.692 1.308
34 2.728 2.441 2.032 1.691 1.307
35 2.724 2.438 2.030 1.690 1.306
36 2.719 2.434 2.028 1.688 1.306
37 2.715 2.431 2.026 1.687 1.305
38 2.712 2.429 2.024 1.686 1.304
39 2.708 2.426 2.023 1.685 1.304
40 2.704 2.423 2.021 1.684 1.303
45 2.690 2.412 2.014 1.679 1.301
50 2.678 2.403 2.009 1.676 1.299
60 2.660 2.390 2.000 1.671 1.296
70 2.648 2.381 1.994 1.667 1.294
80 2.639 2.374 1.990 1.664 1.292
90 2.632 2.368 1.987 1.662 1.291
100 2.626 2.364 1.984 1.660 1.290
200 2.601 2.345 1.972 1.653 1.286
300 2.592 2.339 1.968 1.650 1.284
400 2.588 2.336 1.966 1.649 1.284
500 2.586 2.334 1.965 1.648 1.283
1000 2.581 2.330 1.962 1.646 1.282
2000 2.578 2.328 1.961 1.646 1.282
Large 2.576 2.326 1.960 1.645 1.282
Degrees of Freedom Area in One Tail
0.005 0.01 0.03 0.05 0.10
Area in Two Tails
0.01 0.02 0.05 0.10 0.20
Answer by ikleyn(52756)   (Show Source):
You can put this solution on YOUR website! .
Sorry,
we do not accept such kind of assignments for execution.
While our goal in this forum is to teach students to solve their school Math problems,
it is totally out of the profile of this forum to substitute students or users in doing their own work.
Best regards.
|
|
|
