The following data were drawn from two independent populations. Sample 1 Sample 2 15 23 19 3430 2...
The following data were drawn from two independent populations. Sample 1 14, 21, 17, 35, 32, Sample 2 28, 23, 31, 36, 34, 40 a. Specify the competing hypotheses to determine whether the median of Population 1 is less than the median of Population 2. H0: m1 − m2 = 0; HA: m1 − m2 ≠ 0 H0: m1 − m2 ≤ 0; HA: m1 − m2 > 0 H0: m1 − m2 ≥ 0; HA: m1 − m2 <...
Random samples were drawn from three independent populations. The results are shown in the accompanying table. Use Table 3. Sample 1 12 95 115 110 9 Sample 2 10 85 105 80 75 90 Sample 3 72 65 10 76 66 55 a. Specify the competing hypotheses to test whether some differences exist between the medians. He: m-23HA: Not all population medians are equal. оне: m1 Z m2 m3; MA: All population medians are equal. He: m 2 3 HA:...
Consider the following competing hypotheses and accompanying sample data drawn independently from normally distributed populations. (You may find it useful to reference the appropriate table: z table or t table) Ho: H1-Hu2 0 HA: H1 Hz< e 251 252 s1 39 s=19 n1=7 n 7 a-1. Calculate the value of the test statistic under the assumption that the population variances are equal. (Negative values should be indicated by a minus sign. Round all intermediate calculations to at least 4 decimal...
A random sample of five observations from three normally distributed populations produced the following data: (You may find it useful to reference the F table.) Treatments A C 20 1 9 25 25 22 27 21 24 24 26 2.1 22 23 19 XR - 23 SR6.5 S 4.5 S 4.5 Click here for the Excel Data File f. At the 5% significance level, what is the conclusion to the test? Reject Ho since the p-value is less than significance...
Consider the following competing hypotheses and accompanying sample data (You may find it useful to reference the appropriate table: z table or t table) Ho: Pi - P22 MA: P1 - P2 @ X1 - 238 nu - 425 X2 - 263 n2 - 425 a. Calculate the value of the test statistic (Negative value should be indicated by a minus sign. Round intermediate calculations to at least 4 decimal places and final answer to 2 decimal places.) Test statistic...
Independent random samples were selected from each of two normally distributed populations, n = 6 from population 1 and n2 = 5 from population 2. The data are shown in the table to the right. Complete parts a through c below. 4.7 4.6 1.6 2.3 1.2 3.8 0.6 3.9 C. Test Ho: 02202 against He:0; >o. Use a = 0.01. Determine the test statistic. F= (Round to two decimal places as needed.) Find the p-value. p= (Round to three decimal...
Consider the following competing hypotheses and accompanying sample data drawn independently from normally distributed populations. (You may find it useful to reference the appropriate table: z table or t table) H0: μ1 − μ2 ≥ 0HA: μ1 − μ2 < 0 x¯1x¯1= 249x−2x−2= 262s1 = 35s2 = 23n1 = 10n2 = 10a-1. Calculate the value of the test statistic under the assumption that the population variances are equal. (Negative values should be indicated by a minus sign. Round all intermediate calculations to at least 4 decimal places and final answer to 3 decimal places.) a-2. Find the p-value. multiple choice 1p-value < 0.010.01 ≤ p-value...
Consider the following hypotheses H0 : μ-420 HA: 420 The population is normally distributed with a population standard deviation of 72. (You may find it useful to reference the appropriate table: z table or t table) a-1. Calculate the value of the test statistic with x = 430 and n= 90' (Round intermediate calculations to at least 4 decimal places and final answer to 2 decimal places.) Test statistic a-2. what is the conclusion at the 1% significance level? OReject...
Consider the following hypotheses: He: μ28e The population is normally distributed. A sample produces the following observations: 56 67 62 81 8366 Conduct the test at the 1% level of significance. (You may find lt useful to reference the appropriate table: table or Цеье o. Calculate the value of the test statistic. (Negative value should be Indicated by a minus sign. Round Intermedlate caleulatlons to at least 4 declmal places and final answer to 2 declmal places.) Test statistic b....
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) 21 = 29.8 012 - 95.3 nu = 34 22 = 32.4 oz? = 91.6 ng = 29 a. Construct the 99% 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...