Intro Stats, Books a la Carte Edition (5th Edition)
5th Edition
ISBN: 9780134210285
Author: Richard D. De Veaux, Paul Velleman, David E. Bock
Publisher: PEARSON
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Question
Chapter 16, Problem 7E
a.
To determine
Identify the critical values.
b.
To determine
Identify the critical values.
c.
To determine
Identify the critical values.
d.
To determine
Identify the critical values.
e.
To determine
Identify the critical values.
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Let to be a specific value of t. Use the table of critical values of t below to find to-values such that following statements are true.
a. P(tzto) = .025, where df = 11
b. P (tzto)
= .01, where df = 18
c. P (tsto)
= .005, where df = 6
d. P (tsto) = .05, where df = 13
Click the icon to view the table of critical values of t.
a. The value of to is 2.201 .
b. The value of to is 2.552.
c. The value of to is.
...
State H0 and H1 and the Critical Value
claim: two means equal, n1 = 40, n2 = 126, α = 0.05, σ1 & σ2 known
Let to be a specific value of t. Use the table of critical values of t below to find to-values such that following statements are true.
a. P(t2to) = .025, where df = 11
b. P(t2to) = .01, where df = 18
P(tst)
d. P (tsto) = .05, where df = 13
%3D
%3D
с. Р
= .005, where df = 6
Data table
Click the icon to view the table of critical values of t.
Degrees of
freedom
t.050
t.025
t010
t.005
a. The value of to is
1
6.314
12.706
31.821
63.657
2
2.920
4.303
6.965
9.925
b. The value of to is
3
2.353
3.182
4.541
5.841
4
2.132
2.776
3.747
4.604
c. The value of to is
2.015
2.571
3.365
4.032
1.943
2.447
3.143
3.707
d. The value of to is
7
1.895
2.365
2.998
3.499
8.
1.860
2.306
2.896
3.355
1.833
2.262
2.821
3.250
10
1.812
2.228
2.764
3.169
11
1.796
2.201
2.718
3.106
12
1.782
2.179
2.681
3.055
13
1.771
2.160
2.650
3.012
14
1.761
2.145
2.624
2.977
15
1.753
2.131
2.602
2.947
16
1.746
2.120
2.583
2.921
17
1.740
2.110
2.567
2.898
18
1.734
2.101
2.552
2.878
19
1.729
2.093
2.539
2.861
20
1.725
2.086
2.528…
Chapter 16 Solutions
Intro Stats, Books a la Carte Edition (5th Edition)
Ch. 16.2 - An experiment to test the fairness of a roulette...Ch. 16.2 - Prob. 2JCCh. 16.2 - Prob. 3JCCh. 16.3 - Prob. 4JCCh. 16.3 - Prob. 5JCCh. 16.3 - Prob. 6JCCh. 16.3 - Prob. 7JCCh. 16.4 - Remember the bank thats sending out DVDs to try to...Ch. 16.4 - Prob. 9JCCh. 16.4 - For the bank, which situation has higher power: a...
Ch. 16 - True or false Which of the following are true? If...Ch. 16 - False or true Which of the following are true? If...Ch. 16 - P-values Which of the following are true? If...Ch. 16 - Prob. 4ECh. 16 - Prob. 5ECh. 16 - Prob. 6ECh. 16 - Prob. 7ECh. 16 - More critical values For each of the following...Ch. 16 - Prob. 9ECh. 16 - Significant again? A new reading program may...Ch. 16 - SECTION 16.4 11. Errors For each of the following...Ch. 16 - More errors For each of the following situations,...Ch. 16 - CHAPTER EXERCISES 13. P-value A medical researcher...Ch. 16 - Prob. 14ECh. 16 - Alpha A researcher developing scanners to search...Ch. 16 - Prob. 16ECh. 16 - Prob. 17ECh. 16 - Is the Euro fair? Soon after the Euro was...Ch. 16 - Prob. 19ECh. 16 - Prob. 20ECh. 16 - Prob. 21ECh. 16 - Prob. 22ECh. 16 - Prob. 23ECh. 16 - Prob. 24ECh. 16 - Prob. 25ECh. 16 - Prob. 26ECh. 16 - Prob. 27ECh. 16 - Alzheimers Testing for Alzheimers disease can be a...Ch. 16 - Prob. 29ECh. 16 - Quality control Production managers on an assembly...Ch. 16 - Cars, again As in Exercise 29, state regulators...Ch. 16 - Prob. 32ECh. 16 - Equal opportunity? A company is sued for job...Ch. 16 - Stop signs Highway safety engineers test new road...Ch. 16 - Prob. 35ECh. 16 - Ads A company is willing to renew its advertising...Ch. 16 - Prob. 37ECh. 16 - Prob. 38ECh. 16 - Prob. 39ECh. 16 - Catheters During an angiogram, heart problems can...Ch. 16 - Prob. 41ECh. 16 - Prob. 42ECh. 16 - Prob. 43ECh. 16 - Faulty or not? You are in charge of shipping...Ch. 16 - Prob. 45ECh. 16 - Prob. 46ECh. 16 - Prob. 47ECh. 16 - Prob. 48E
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- Answerarrow_forwardUse your calculator to find critical values such that the following statements are true. Your task is to determine the critical values below. a. P(-tu/2 ststa/2) = 0.95, where df = 10 b. P(ts-ta) = 0.01, where df = 19 c. P(ts - tu/2 or tzte/2) = 0.10, where df = 19 d. P(ts -tu/2 or tzta/2) = 0.01, where df = 6 а. Р Click the icon to view the table of critical values of t. (Use 3 decimal places in all questions please.) (Use 3 decimal places in questions a-d please.) a. The upper tail critical value ta/2 = b. The lower tail critical value ta = c. The upper tail critical value tu/2 The lower tail critical value tu/2 = d. The upper tail critical value t/2 = U The lower tail critical value t/2= Uarrow_forwardLet to be a specific value of t. Use the table of critical values of t below to find to-values such that the following statements are true. a. P(-1)=0.95, where df=11 b. P(1st) -0.01, where df = 14 CP(Is-to or tab) -0.10, where df=6 d. P (ts-ortat) *0.01, where of 10 Click the icon to view the table of critical values of t a. The value of to is b. The value of tois c. The value of tos d. The value of to is (Type an integer or a decimal.) (Type an integer or a decimal.) (Type an integer or a decimal.) (Type an integer or a decimal.)arrow_forward
- Use your calculator to find critical values such that the following statements are true. Your task is to determine the critical values below. a. P(-ta/2 ststa/2) = 0.95, where df = 15 b. P (ts-t) = 0.01, where df = 17 c. P(ts-a/2 or tata/2) = 0.10, where df = 20 d. P (ts-ta/2 or 12ta/2) = 0.01, where df = 15 Click the icon to view the table of critical values of t. (Use 3 decimal places in all questions please.) (Use 3 decimal places in questions a-d please.) a. The upper tail critical value a/2 = b. The lower tail critical value t = c. The upper tail critical value a/2 = The lower tail critical value a/2= d. The upper tail critical value a/2 = The lower tail critical value a/2"arrow_forwardLet t, be a specific value of t. Use the table of critical values of t below to find t,-values such that following statements are true. a. P (tat,) = .025, where df = 11 b. P(tzt,) = .01, where df = 17 c. P (tst,) = .005, where df = 7 d. P(tst,) = .05, where df = 13 - X Data Table E Click the icon to view the table of critical values of t. Degrees of t050 to25 to10 t005 a. The value of to is freedom 1 6.314 12.706 31.821 63.657 b. The value of t, is 2 2.920 4.303 6.965 9.925 2.353 3.182 4.541 5.841 c. The value of t, is 4 2.132 2.776 3.747 4.604 2.015 2.571 3.365 4.032 d. The value of t, is 6 1.943 2.447 3.143 3.707 2.998 2.896 7 1.895 2.365 3.499 8 1.860 2.306 3.355 9 1.833 2.262 2.821 3.250 3.169 3.106 10 1.812 2.228 2,764 11 1.796 2.201 2.718 12 1.782 2.179 2.681 3.055 13 1.771 2.160 2.650 3.012 14 1.761 2.145 2.624 2.977 15 1.753 2.131 2.602 2.947 16 1.746 2.120 2.583 2.921 2.567 2.552 17 1.740 2.110 2.898 18 2.101 1.734 1.729 2.878 19 2.093 2.539 2.861 20 1.725 2.086 2.528 2.845…arrow_forwardSamples of 2 units will be selected from the population whose distribution is given below, with a return and order of importance (W / R, O / I). a)Show that x̄ is a neutral estimator. b)Find V(x̄). Show that V(x̄) is equals to ϭ²/n. c)Find E(s²). Show that E(s²) is equal to ϭ². (Hint: W/R=With Replacement, O/I=Order Important)arrow_forward
- I need the right answer to d.arrow_forwardand Determine the upper-tail critical value to/2 in each of the following circumstances. a. 1-α=0.95, n = 13 d. 1-q=0.95, n = 38 b. 1-a=0.99, n = 13 e. 1-α=0.90, n = 62 c. 1-α=0.95, n = 46 Click here to view page 1 of the table of critical values for the t distribution. Click here to view page 2 of the table of critical values for the t distribution. C... a. t= (Round to four decimal places as needed.) b. t= (Round to four decimal places as needed.) c. t= (Round to four decimal places as needed.) d. t= (Round to four decimal places as needed.) e.t= (Round to four decimal places as needed.) Get more help. View instructor tip Help me solve this Type here to search. 79°F Next llaarrow_forwardMatch each Test Situation with the correct Critical Value. For a two-sided test, find only the positive value. Test Situation Ha: P1 P2 + 0 and a = 0.001 Ha:Pi – P2 7 0 and a = 0.02 Ha:P1 – p2 0 and a = 0.005 Ha: P1 – P2 > 0 and a = 0.04 Critical Value a. 1.751 b. 2.326 с. 2.576 d. -1.960 е. 3.291arrow_forward
- Match each Test Situation with the correct Critical Value. For a two-sided test, find only the positive value. Test Situation Two samples, 1 = 25.3, I2 H.: P1 - 2 po, and a 0.01 %3D Two samples, n = 28, Ha: µd > 0, and a 0.01 dv One sample, ni = - 35, п2 41, Ha: p1 – p2 0, and a = 0.01 %3D %3D One sample of x's and y's, n = 114, Ha: p < 0, and a = 0.001 One sample, o is known, n = 68, Ha:µ # Ho, and a = 0.05 One sample, o is unknown, n = 76, H. : µ < Ho, and a 0.05 Critical Value a. 1.960 b. -3.165 C. 2.473 d. 2.326 e. 2.576 f. -1.294 g. -1.665 h. 2.426arrow_forwardExplain why the critical value of t, one-tailed, alpha = .05 is the same as the critical value of t, two-tailed, a .10 .arrow_forwardFind the critical value z Subscript alpha divided by 2zα/2 that corresponds to alphaαequals=0.18.arrow_forward
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