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Suppose you are testing the hypotheses Ho : p=0.21 vs. p +0.21 with significance level a...
Question 19 (1 point) Suppose you are testing the hypotheses Ho : p=0.22 vs. p +0.22 with significance level a = 0.05....
Question 19 (1 point) Suppose you are testing the hypotheses Ho : p=0.22 vs. p +0.22 with significance level a = 0.05. A sample size of 262 results in a sample proportion of 0.28. As you know, one way to address two-sided tests is to create confidence intervals. Construct the appropriate confidence interval for p that could be used to address the test and report the upper limit of the confidence interval. Note: 1- Only round your final answer to...
Suppose that you are testing the hypotheses Ho: p= 0.20 vs. HA, p 0.20. A sample...
Suppose that you are testing the hypotheses Ho: p= 0.20 vs. HA, p 0.20. A sample of size 250 results in a sample proportion of 0.27 a) Construct a 95% confidence interval for p. b) Based on the confidence interval, can you reject Ho at a 0.05? Explain c) What is the difference between the standard error and standard deviation of the sample proportion? d) Which is used in computing the confidence interval? a) The 95% confidence interval for p...
Suppose that you are testing the hypotheses Upper H 0: p=0.38 vs. Upper H Subscript Upper...
Suppose that you are testing the hypotheses Upper H 0: p=0.38 vs. Upper H Subscript Upper A: p>0.38. A sample of size 250 results in a sample proportion of 0.45. a) Construct a 99% confidence interval for p. (__,__) b) Determine the conclusion for the hypothesis test based on the confidence interval. Since the confidence interval ▼ does does not contain the null hypothesis value, ▼ reject fail to reject the null hypothesis at alphaαequals=0.005. c) What is the difference...
14. Suppose that you are testing the hypotheses Ho:p 0.40 vs. HA:p0.40. A sample of size...
14. Suppose that you are testing the hypotheses Ho:p 0.40 vs. HA:p0.40. A sample of size 200 results in a sample proportion of 0.55. a) Construct a 90% confidence interval for p b) Based on the confidence interval, at a 05 can you re- ject Ho? Explain.
14. Suppose that you are testing the hypotheses Ho:p 0.40 vs. HA:p > 0.40. A sample...
14. Suppose that you are testing the hypotheses Ho:p 0.40 vs. HA:p > 0.40. A sample of size 200 results in a sample proportion of 0.55. a) Construct a 90% confidence interval for p b) Based on the confidence interval, at a .05 can you re- ject Ho? Explain
need help: Suppose that you are testing the hypotheses H0 με 16 vs. HA: μ< 16....
need help:
Suppose that you are testing the hypotheses H0 με 16 vs. HA: μ< 16. A sample of size 16 results in a sample mean of 15.5 and a sample standard deviation of 20 a) What is the standard error of the mean? b) What is the critical value of t* for a 90% confidence interval? c) Construct a 90% confidence interval for μ. d) Based on the confidence interval, at α#0.05 can you reject Ho? Explain. a) The...
Consider a large-sample level 0.01 test for testing Ho: p 0.2 against Ha: p> 0.2. 0.21,...
Consider a large-sample level 0.01 test for testing Ho: p 0.2 against Ha: p> 0.2. 0.21, compute β(0.21) for sample sizes n-81, 4900, 10,000, 40,000, and 90,000. (Round your answers to four decimal places.) (a) For the alternative value ρ 81 4900 10,000 40,000 90,000 (b) For p = x/n = 0.21, compute the P-value when n 81, 4900, 10,000, and 40,000. (Round your answers to four decimal places.) n P-value 81 4900 10,000 40,000
Suppose that you are testing the following hypotheses: Ho: = 10 and 11: > 10. If...
Suppose that you are testing the following hypotheses: Ho: = 10 and 11: > 10. If the null hypothesis is rejected at the 1% level of significance, what statement can you make about the confidence interval on the mean? a) The lower bound of a 95% one-sided confidence interval on the mean exceeds 10. b) 9 sus 13 c) No statement can be made. d) The lower bound of a 95% one-sided confidence interval on the mean exceeds zero. If...
Suppose that you are testing the hypotheses H0: μ=70 vs. HA: μ≠70. A sample of size...
Suppose that you are testing the hypotheses H0: μ=70 vs. HA: μ≠70. A sample of size 41 results in a sample mean of 65 and a sample standard deviation of 1.7. a) What is the standard error of the mean? b) What is the critical value of t* for a 99% confidence interval? c) Construct a 99% confidence interval for μ. d) Based on the confidence interval, at α=0.010 can you reject H0? Explain.
Bonus (5 points) Suppose that you are testing the following hypotheses: Ho: 4 = 10 and...
Bonus (5 points) Suppose that you are testing the following hypotheses: Ho: 4 = 10 and H :> 10. If the null hypothesis is rejected at the 1% level of significance, what statement can you make about the confidence interval on the mean? a) The lower bound of a 95% one-sided confidence interval on the mean exceeds 10. b) 9 <u< 13 c) No statement can be made. d) The lower bound of a 95% one-sided confidence interval on the...
Question 19 (1 point) Suppose you are testing the hypotheses Ho : p=0.22 vs. p +0.22 with significance level a = 0.05. A sample size of 262 results in a sample proportion of 0.28. As you know, one way to address two-sided tests is to create confidence intervals. Construct the appropriate confidence interval for p that could be used to address the test and report the upper limit of the confidence interval. Note: 1- Only round your final answer to...
Suppose that you are testing the hypotheses Ho: p= 0.20 vs. HA, p 0.20. A sample of size 250 results in a sample proportion of 0.27 a) Construct a 95% confidence interval for p. b) Based on the confidence interval, can you reject Ho at a 0.05? Explain c) What is the difference between the standard error and standard deviation of the sample proportion? d) Which is used in computing the confidence interval? a) The 95% confidence interval for p...
14. Suppose that you are testing the hypotheses Ho:p 0.40 vs. HA:p0.40. A sample of size 200 results in a sample proportion of 0.55. a) Construct a 90% confidence interval for p b) Based on the confidence interval, at a 05 can you re- ject Ho? Explain.
14. Suppose that you are testing the hypotheses Ho:p 0.40 vs. HA:p > 0.40. A sample of size 200 results in a sample proportion of 0.55. a) Construct a 90% confidence interval for p b) Based on the confidence interval, at a .05 can you re- ject Ho? Explain
need help:
Suppose that you are testing the hypotheses H0 με 16 vs. HA: μ< 16. A sample of size 16 results in a sample mean of 15.5 and a sample standard deviation of 20 a) What is the standard error of the mean? b) What is the critical value of t* for a 90% confidence interval? c) Construct a 90% confidence interval for μ. d) Based on the confidence interval, at α#0.05 can you reject Ho? Explain. a) The...
Consider a large-sample level 0.01 test for testing Ho: p 0.2 against Ha: p> 0.2. 0.21, compute β(0.21) for sample sizes n-81, 4900, 10,000, 40,000, and 90,000. (Round your answers to four decimal places.) (a) For the alternative value ρ 81 4900 10,000 40,000 90,000 (b) For p = x/n = 0.21, compute the P-value when n 81, 4900, 10,000, and 40,000. (Round your answers to four decimal places.) n P-value 81 4900 10,000 40,000
Suppose that you are testing the following hypotheses: Ho: = 10 and 11: > 10. If the null hypothesis is rejected at the 1% level of significance, what statement can you make about the confidence interval on the mean? a) The lower bound of a 95% one-sided confidence interval on the mean exceeds 10. b) 9 sus 13 c) No statement can be made. d) The lower bound of a 95% one-sided confidence interval on the mean exceeds zero. If...
Bonus (5 points) Suppose that you are testing the following hypotheses: Ho: 4 = 10 and H :> 10. If the null hypothesis is rejected at the 1% level of significance, what statement can you make about the confidence interval on the mean? a) The lower bound of a 95% one-sided confidence interval on the mean exceeds 10. b) 9 <u< 13 c) No statement can be made. d) The lower bound of a 95% one-sided confidence interval on the...
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