Homework Answers
Since standard deviation is known
we would use normal distribution to calculate confidence interval
Z(α/2) = Z( 0.01 /2 ) = 2.575
Looking for value 0.99 in the standard normal table to calculate the critical value.
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Do one of the following, as appropriate. (a) Find the critical value z/2. (b) find the...
Using a table of critical t-values of the t distribution, find the range of values for...
Using a table of critical t-values of the t distribution, find
the range of values for the P-value for testing a claim about the
mean body temperature of healthy adults for a left-tailed test
with n=12 and test statistic t= -2.475
What is the range of values for the P-value?
A. 0.01 <P-value< 0.025
B. 0.025<P-value<0.05
C. P-value<0.005
D. 0.005 <P-value<0.01
x t-table t distribution: Critical t values 0.005 0.01 Area in One Tail 0.025 0.05 0.10 Degrees of Freedom...
Find the critical value(s) and rejection region(s) for the indicated t test level of significance α...
Find the critical value(s) and rejection region(s) for the indicated t test level of significance α and sample size n Left-tailed test, α: 0.005, n 7 Click the icon to view the t-distribution table. The critical value(s) isare (Round to the nearest thousandth as needed. Use a comma to separate answers as needed ) Determine the rejection region(s) Select the correct choice below and filt in the answer boxies) within your choice Round to the nearest thousandth as needed) OB...
Determine the critical t-scores for each of the conditions below. a) one-tail test, a=0.01, and n=18...
Determine the critical t-scores for each of the conditions below. a) one-tail test, a=0.01, and n=18 b) one-tail test, c = 0.005, and n = 40 c) two-tail test, a = 0.02, and n=22 d) two-tail test, a 0.05, and n=25 Click here to view page 1 of the Student's t-distribution table. Click here to view page 2 of the Student's t-distribution table.
Determine the critical t-scores for each of the conditions below. a) one-tail test, α-0.005, and n-39...
Determine the critical t-scores for each of the conditions below. a) one-tail test, α-0.005, and n-39 b) one-tail test, a 0.01, and n 32 c) two-tail test, a 0.05, and n 33 d) two-tail test, a-0.02, and n 16 Click here to view page 1 of the Student's t-distribution table Click here to view page 2 of the Student's t-distribution table a) The critical t-score(s) for a one-tail test, where a-0.005, and n 39 is(are) Round to three decimal places...
Determine the critical t-scores for each of the conditions below. a) one-tail test, alphaαequals=0.01, and nequals=38...
Determine the critical t-scores for each of the conditions below. a) one-tail test, alphaαequals=0.01, and nequals=38 b) one-tail test, alphaαequals=0.005, and nequals=10 c) two-tail test, alphaαequals=0.05 and nequals=25 d) two-tail test, alphaα=0.10 and n=13 Click here to view page 1 of the Student's t-distribution table. LOADING... Click here to view page 2 of the Student's t-distribution table. LOADING... a) The critical t-score(s) for a one-tail test, where alphaα=0.01, and n=38 is(are) nothing. (Round to three decimal places as needed. Use...
Do one of the following, as appropriate. (a) Find the critical value z Subscript alpha divided...
Do one of the following, as appropriate. (a) Find the critical value z Subscript alpha divided by 2, (b) find the critical value t Subscript alpha divided by 2, (c) state that neither the normal nor the t distribution applies. Confidence level 95%; nequals26; sigma equals 30.2; population appears to be normally distributed. Find the critical value. A. zα/2 = 1.645 B. zα/2 = 1.96 C. tα/2 = 2.060 D. tα/2 = 1.708 E. Neither normal nor t distribution applies.
11. Do one of the following, as appropriate: (a) Find the critical value z a, (b)...
11. Do one of the following, as appropriate: (a) Find the critical value z a, (b) find the critical value (ipoint tap, (c) state that neither the normal nor the t distribution applies. 99%; n = 17, σ is unknown; population appears to be normally distributed. O zan 2.583 O tan a/2 -2.898 O ta/2-2921 O za/2#2567 12. Do one of the following, as appropriate: (a) Find the critical value za/2, (b) find the critical value (point) tan,(c) state that...
Do one of the following, as appropriate. (a) Find the critical value z Subscript alpha divided...
Do one of the following, as appropriate. (a) Find the critical value z Subscript alpha divided by 2zα/2 , (b) find the critical value t Subscript alpha divided by 2tα/2 , (c) state that neither the normal nor the t distribution applies. Confidence level 9999 %; nequals=1818 ; sigma is knownσ is known ; The population appears to be veryskewedvery skewed.
Answer the following question. B Putting It Together: Which Procedure Do I Use? X9.3.17 O of 1 Point EQuestion...
Answer the following question.
B Putting It Together: Which Procedure Do I Use? X9.3.17 O of 1 Point EQuestion Help In a survey of 1015 adults, a polling agency asked, "When you retire, do you think you will have enough money to live comfortably or not. Of the 1015 surveyed, 535 stated that they were worried about having enough money to live comfortably in retirement. Construct a 90% confidence interval for the proportion of adults who are worried about having...
answer a.to d. Determine the upper-tail critical value tu/2 in each of the following circumstances. a.1_...
answer a.to d.
Determine the upper-tail critical value tu/2 in each of the following circumstances. a.1_ -0.99, n 10 b. 1-a-0.90, n 10 C. I-α: 0.99, n: 65 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 d. 1- 0.99, n 17 e. 1-α:0.95, n 35 values for the t distribution at (Round to four decimal places as needed)
Using a table of critical t-values of the t distribution, find
the range of values for the P-value for testing a claim about the
mean body temperature of healthy adults for a left-tailed test
with n=12 and test statistic t= -2.475
What is the range of values for the P-value?
A. 0.01 <P-value< 0.025
B. 0.025<P-value<0.05
C. P-value<0.005
D. 0.005 <P-value<0.01
x t-table t distribution: Critical t values 0.005 0.01 Area in One Tail 0.025 0.05 0.10 Degrees of Freedom...
Find the critical value(s) and rejection region(s) for the indicated t test level of significance α and sample size n Left-tailed test, α: 0.005, n 7 Click the icon to view the t-distribution table. The critical value(s) isare (Round to the nearest thousandth as needed. Use a comma to separate answers as needed ) Determine the rejection region(s) Select the correct choice below and filt in the answer boxies) within your choice Round to the nearest thousandth as needed) OB...
Determine the critical t-scores for each of the conditions below. a) one-tail test, a=0.01, and n=18 b) one-tail test, c = 0.005, and n = 40 c) two-tail test, a = 0.02, and n=22 d) two-tail test, a 0.05, and n=25 Click here to view page 1 of the Student's t-distribution table. Click here to view page 2 of the Student's t-distribution table.
Determine the critical t-scores for each of the conditions below. a) one-tail test, α-0.005, and n-39 b) one-tail test, a 0.01, and n 32 c) two-tail test, a 0.05, and n 33 d) two-tail test, a-0.02, and n 16 Click here to view page 1 of the Student's t-distribution table Click here to view page 2 of the Student's t-distribution table a) The critical t-score(s) for a one-tail test, where a-0.005, and n 39 is(are) Round to three decimal places...
11. Do one of the following, as appropriate: (a) Find the critical value z a, (b) find the critical value (ipoint tap, (c) state that neither the normal nor the t distribution applies. 99%; n = 17, σ is unknown; population appears to be normally distributed. O zan 2.583 O tan a/2 -2.898 O ta/2-2921 O za/2#2567 12. Do one of the following, as appropriate: (a) Find the critical value za/2, (b) find the critical value (point) tan,(c) state that...
Answer the following question.
B Putting It Together: Which Procedure Do I Use? X9.3.17 O of 1 Point EQuestion Help In a survey of 1015 adults, a polling agency asked, "When you retire, do you think you will have enough money to live comfortably or not. Of the 1015 surveyed, 535 stated that they were worried about having enough money to live comfortably in retirement. Construct a 90% confidence interval for the proportion of adults who are worried about having...
answer a.to d.
Determine the upper-tail critical value tu/2 in each of the following circumstances. a.1_ -0.99, n 10 b. 1-a-0.90, n 10 C. I-α: 0.99, n: 65 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 d. 1- 0.99, n 17 e. 1-α:0.95, n 35 values for the t distribution at (Round to four decimal places as needed)
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