Homework Answers
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Here , t0.025,14= 2.145 and tt0.01,14 = 2.624 this values calculate from t-distribution table.
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QUESTION 19 For certain data, HO: u= 36.7 and H1: u> 36.7, n = 15, test...
1)Find the critical value for right tailed T- test if n = 15, and the level...
1)Find the critical value for right tailed T- test if n = 15, and the level of significance is 5% a) 1.753 b) 2.145 c)1.761 d) 2.131 2) Find the critical value for left tailed T- test if n = 15, and the level of significance is 5% a)-1.761 b)1.761 c)1.753 d)-1.753
In a test of the hypothesis Ho: u = 59 versus Ha: u>59, a sample of...
In a test of the hypothesis Ho: u = 59 versus Ha: u>59, a sample of n = 100 observations possessed mean x = 58.5 and standard deviation s = 3.8. Find and interpret the p-value for this test. The p-value for this test is (Round to three decimal places as needed.)
To test Ho: u= 20 versus Hy: u<20, a simple random sample of size n= 19...
To test Ho: u= 20 versus Hy: u<20, a simple random sample of size n= 19 is obtained from a population that is known to be normally distributed. Answer parts (a)-(d). Click here to view the t-Distribution Area in Right Tail. (a) If x = 18.1 and s= 3.9, compute the test statistic. (Round to two decimal places as needed.) t = (b) Draw a t-distribution with the area that represents the P-value shaded. Which of the following graphs shows...
(15 points) The t statistic for a test of Ho : 4 = 47 Ha: u...
(15 points) The t statistic for a test of Ho : 4 = 47 Ha: u > 47 based on n = 17 observations has the value t = 1.61. (a) What are the degrees of freedom for this statistic? 16 (b) Using the appropriate table in your formula packet, bound the p-value as closely as possible: <p-value <
The one-sample -statistic for a test of Ho: u = 42 versus H1: /i < 42 based on n = 15 observations has the value 1=1...
The one-sample -statistic for a test of Ho: u = 42 versus H1: /i < 42 based on n = 15 observations has the value 1=1.757, where Ho and Hiare the null and alternative hypotheses, respectively. The sample size is denoted by n Use this r-table to determine which two P-values bracket the P-value of the test. Report your answers in decimal form as listed in the 1-table K P-value of the test <
Intro to Statistics: Q1: Q2: Q3: [8-1] Suppose we are testing the null hypothesis Ho: u...
Intro to Statistics:
Q1:
Q2:
Q3:
[8-1] Suppose we are testing the null hypothesis Ho: u = 50 and the alternative Ha: u 50 for a normal population with o 6. We took an SRS sample of size 48 and obtained x-bar 53. The P-value for the test is: 0.05 <0.05 Question 2 (0.5 points) 8-2] When performing a one-sample t-test, if the sample size is 14, then of freedom should be used for determining the confidence interval from the...
We want to test the following hypothesis Ho: u = 60 H1: u 60 Consider a=0.05....
We want to test the following hypothesis Ho: u = 60 H1: u 60 Consider a=0.05. S=5.85 n=8 Formulas T-table Calculate the lower limit for the rejection region (x-bar domain)
Consider the hypothesis test Ho : H1 = H2 against H1 : HI # Hz with...
Consider the hypothesis test Ho : H1 = H2 against H1 : HI # Hz
with known variances oj = 1 1 and oz = 4. Suppose that sample sizes
ni = 11 and n2 = 16 and that X = 4,7 and X2 = 7.9. Use a =
0.05.
Question 1 of 1 < > -/1 View Policies Current Attempt in Progress Consider the hypothesis test Ho: M1 = H2 against H: MM with known variances o = 11...
Consider the following hypothesis test Ho:u=115 H1:u<115 a=0.05 A sample of n=6, xbar=110, and s=3.5 Determine...
Consider the following hypothesis test Ho:u=115 H1:u<115 a=0.05 A sample of n=6, xbar=110, and s=3.5 Determine the p value (use interpolation):
Given a simple random sample size of 18, test the null hypothesis Ho: u = 10.5...
Given a simple random sample size of 18, test the null hypothesis Ho: u = 10.5 against the alternative H1:u > 10.5. The one-sample t-statistic has been calculated to be t = 1.176. Use software to compute the P-value of this statistic. Give your answer as a decimal rounded to three places. This list of software manuals contains instructions on how to compute a P-value with the technology you are using. P-value
In a test of the hypothesis Ho: u = 59 versus Ha: u>59, a sample of n = 100 observations possessed mean x = 58.5 and standard deviation s = 3.8. Find and interpret the p-value for this test. The p-value for this test is (Round to three decimal places as needed.)
To test Ho: u= 20 versus Hy: u<20, a simple random sample of size n= 19 is obtained from a population that is known to be normally distributed. Answer parts (a)-(d). Click here to view the t-Distribution Area in Right Tail. (a) If x = 18.1 and s= 3.9, compute the test statistic. (Round to two decimal places as needed.) t = (b) Draw a t-distribution with the area that represents the P-value shaded. Which of the following graphs shows...
(15 points) The t statistic for a test of Ho : 4 = 47 Ha: u > 47 based on n = 17 observations has the value t = 1.61. (a) What are the degrees of freedom for this statistic? 16 (b) Using the appropriate table in your formula packet, bound the p-value as closely as possible: <p-value <
The one-sample -statistic for a test of Ho: u = 42 versus H1: /i < 42 based on n = 15 observations has the value 1=1.757, where Ho and Hiare the null and alternative hypotheses, respectively. The sample size is denoted by n Use this r-table to determine which two P-values bracket the P-value of the test. Report your answers in decimal form as listed in the 1-table K P-value of the test <
Intro to Statistics:
Q1:
Q2:
Q3:
[8-1] Suppose we are testing the null hypothesis Ho: u = 50 and the alternative Ha: u 50 for a normal population with o 6. We took an SRS sample of size 48 and obtained x-bar 53. The P-value for the test is: 0.05 <0.05 Question 2 (0.5 points) 8-2] When performing a one-sample t-test, if the sample size is 14, then of freedom should be used for determining the confidence interval from the...
We want to test the following hypothesis Ho: u = 60 H1: u 60 Consider a=0.05. S=5.85 n=8 Formulas T-table Calculate the lower limit for the rejection region (x-bar domain)
Consider the hypothesis test Ho : H1 = H2 against H1 : HI # Hz
with known variances oj = 1 1 and oz = 4. Suppose that sample sizes
ni = 11 and n2 = 16 and that X = 4,7 and X2 = 7.9. Use a =
0.05.
Question 1 of 1 < > -/1 View Policies Current Attempt in Progress Consider the hypothesis test Ho: M1 = H2 against H: MM with known variances o = 11...
Consider the following hypothesis test Ho:u=115 H1:u<115 a=0.05 A sample of n=6, xbar=110, and s=3.5 Determine the p value (use interpolation):
Given a simple random sample size of 18, test the null hypothesis Ho: u = 10.5 against the alternative H1:u > 10.5. The one-sample t-statistic has been calculated to be t = 1.176. Use software to compute the P-value of this statistic. Give your answer as a decimal rounded to three places. This list of software manuals contains instructions on how to compute a P-value with the technology you are using. P-value
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