Homework Answers
a)
confidence interval
0.587 to 4.25
= (0.59 , 4.25)
b)
90% confidence interval contains the value 1 , thus we fail to reject the null hypothesis
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Help Save &Exit Check Exercise 11-26 Algo Consider the following measures based on independently drawn samples...
Exercise 11-26 Algo Consider the following measures based on independently drawn samples from normally distributed populations:...
Exercise 11-26 Algo Consider the following measures based on independently drawn samples from normally distributed populations: (You may find it useful to reference the appropriate table: chi-square table or F table) Sample 1: -276, and -51 Sample 2: s2 164, and n2 26 a. Construct the 90% interval estimate for the ratio of the population variances. Round "P' value and final answers to 2 decimal places.) Confidence interval to b. Using the confidence interval from Part (a), test if the...
Consider the following measures based on independently drawn samples from normally distributed populations: (You may find...
Consider the following measures based on independently drawn samples from normally distributed populations: (You may find it useful to reference the appropriate table: chi-square table or F table) Sample 1: s21s12 = 221, and n1 = 16 Sample 2: s22s22 = 208, and n2 = 11 a. Construct the 95% interval estimate for the ratio of the population variances. (Round "F" value and final answers to 2 decimal places.) Confidence interval _______ to _______ B. Using the confidence interval from...
Consider the following measures based on independently drawn samples from normally distributed populations Ợou may find...
Consider the following measures based on independently drawn samples from normally distributed populations Ợou may find it useful to reference the appropriate table: chi-square table or F table) Sample 1: s 221, and n1 - 16 Sample 2:s 208, and n2 11 a. Construct the 95% interval estimate for the ratio of the population variances. (Round "F' value and final answers to 2 decimal places.) Confidence interval to b. Using the confidence interval from Part (a), test if the ratio...
Consider the following data drawn independently from normally distributed populations: (You may find it useful to...
Consider the following data drawn independently from normally distributed populations: (You may find it useful to reference the appropriate table: z table or t table) *1 = -28.3 s12 = 8.7 ni = 22 X2 = -18.5 s 2 = 7.9 n2 = 16 a. Construct the 95% confidence interval for the difference between the population means. Assume the population variances are unknown but equal. (Round all intermediate calculations to at least 4 decimal places and final answers to 2...
Exercise 11-3 Algo In order to construct a confidence interval for the population varian population. Use...
Exercise 11-3 Algo In order to construct a confidence interval for the population varian population. Use this information to find x2a/2, df and 21-a/2, ef under the following scenarios. places. You may find it useful to reference the appropriate table: s ce, a random sample of n observations is drawn from a normal Round your answers to 3 decimal hi-square table or Ftable) a/2 a. A 9ex confidence level with n 19 b. A 90% confidence level with n-48. C....
Exercise 10-3 Algo Consider the following competing hypotheses and accompanying sample data drawn independently from normally...
Exercise 10-3 Algo Consider the following competing hypotheses and accompanying sample data drawn independently from normally distributed populations ay find it useful to reference the appropriate table: z table or t table) He//H1AZ 75 279 01-11.10 σ2-1.67 n1/20 o-1. Calculate the value of the test statistic. (Negative values should be indicated by a minus sign. Round all intermediate celculations to at least 4 decimal places and final answer to 2 decimal places.) 005 s pvalue s0.10o 0.025 s pvalue c0.05...
Assighment Chapter 10 Saved Help Save &Exite Check my w Exercise 10-1 Algo Consider the following...
Assighment Chapter 10 Saved Help Save &Exite Check my w Exercise 10-1 Algo Consider the following data drawn independently from normally distributed populations: (You may find it useful to reference the appropriate table: z table or t table) o12 -95.4 1 -29 .93.2 2 27 a. Construct the 95% confidence interval for the difference between the population means (Negative values should be indicated by a minus sign. Round all intermediate calculetions to at least 4 decimal places and final answers...
Consider the following data drawn independently from normally distributed populations: (You may find it useful to...
Consider the following data drawn independently from normally distributed populations: (You may find it useful to reference the appropriate table: z table or t table) x−1x−1 = −25.8 x−2x−2 = −16.2 s12 = 8.5 s22 = 8.8 n1 = 26 n2 = 20 a. Construct the 99% confidence interval for the difference between the population means. Assume the population variances are unknown but equal. (Round all intermediate calculations to at least 4 decimal places and final answers to 2 decimal...
Construct the 99% interval estimate for the ratio of the population variances using the following results...
Construct the 99% interval estimate for the ratio of the population variances using the following results from two independently drawn samples from normally distributed populations. (Round "P value and final answers to 2 decimal places. You may find it useful to reference the appropriate table: chi-square table or F table) Sample 1: 1 195, si-24.6, and m Sample 2: i2-191.5, 2-221, and n2-8 to <. Prev 40, 5 Next > 344 P
Consider the following data drawn independently from normally distributed populations: (You may find it useful to...
Consider the following data drawn independently from normally distributed populations: (You may find it useful to reference the appropriate table: z table or t table) x−1x−1 = 32.7 x−2x−2 = 25.4 σ12 = 95.5 σ22 = 91.0 n1 = 16 n2 = 21 a. Construct the 90% confidence interval for the difference between the population means. (Negative values should be indicated by a minus sign. Round all intermediate calculations to at least 4 decimal places and final answers to 2...
Exercise 11-26 Algo Consider the following measures based on independently drawn samples from normally distributed populations: (You may find it useful to reference the appropriate table: chi-square table or F table) Sample 1: -276, and -51 Sample 2: s2 164, and n2 26 a. Construct the 90% interval estimate for the ratio of the population variances. Round "P' value and final answers to 2 decimal places.) Confidence interval to b. Using the confidence interval from Part (a), test if the...
Consider the following measures based on independently drawn samples from normally distributed populations Ợou may find it useful to reference the appropriate table: chi-square table or F table) Sample 1: s 221, and n1 - 16 Sample 2:s 208, and n2 11 a. Construct the 95% interval estimate for the ratio of the population variances. (Round "F' value and final answers to 2 decimal places.) Confidence interval to b. Using the confidence interval from Part (a), test if the ratio...
Consider the following data drawn independently from normally distributed populations: (You may find it useful to reference the appropriate table: z table or t table) *1 = -28.3 s12 = 8.7 ni = 22 X2 = -18.5 s 2 = 7.9 n2 = 16 a. Construct the 95% confidence interval for the difference between the population means. Assume the population variances are unknown but equal. (Round all intermediate calculations to at least 4 decimal places and final answers to 2...
Exercise 11-3 Algo In order to construct a confidence interval for the population varian population. Use this information to find x2a/2, df and 21-a/2, ef under the following scenarios. places. You may find it useful to reference the appropriate table: s ce, a random sample of n observations is drawn from a normal Round your answers to 3 decimal hi-square table or Ftable) a/2 a. A 9ex confidence level with n 19 b. A 90% confidence level with n-48. C....
Exercise 10-3 Algo Consider the following competing hypotheses and accompanying sample data drawn independently from normally distributed populations ay find it useful to reference the appropriate table: z table or t table) He//H1AZ 75 279 01-11.10 σ2-1.67 n1/20 o-1. Calculate the value of the test statistic. (Negative values should be indicated by a minus sign. Round all intermediate celculations to at least 4 decimal places and final answer to 2 decimal places.) 005 s pvalue s0.10o 0.025 s pvalue c0.05...
Assighment Chapter 10 Saved Help Save &Exite Check my w Exercise 10-1 Algo Consider the following data drawn independently from normally distributed populations: (You may find it useful to reference the appropriate table: z table or t table) o12 -95.4 1 -29 .93.2 2 27 a. Construct the 95% confidence interval for the difference between the population means (Negative values should be indicated by a minus sign. Round all intermediate calculetions to at least 4 decimal places and final answers...
Construct the 99% interval estimate for the ratio of the population variances using the following results from two independently drawn samples from normally distributed populations. (Round "P value and final answers to 2 decimal places. You may find it useful to reference the appropriate table: chi-square table or F table) Sample 1: 1 195, si-24.6, and m Sample 2: i2-191.5, 2-221, and n2-8 to <. Prev 40, 5 Next > 344 P
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