Consider the following competing hypotheses and accompanying sample data drawn independently from normally distributed p
Posted: Mon Jul 11, 2022 11:28 am
a-3. Do you reject the null hypothesis at the 1% level? Yes, since the value of the p-value is less than the significance level. No, since the value of the p-value is less than the significance level. No, since the value of the p-value is greater than the significance level. Yes, since the value of the p-value is greater than the significance level. a-4. Interpret the results at a = 0.01. We conclude that the population means differ. We cannot conclude that the population means differ. We conclude that population mean 1 is less than population mean 2. We cannot conclude that population mean 1 is less than population mean 2.
b-1. Calculate the value of the test statistic under the assumption that the population variances are unknown and are not equal. (Negative value should be indicated by a minus sign. Round final answer to 3 decimal places.) Test statistic b-2. Find the p-value. -0.061 p-value < 0.01 O 0.01 ≤ p-value < 0.025 O 0.025 ≤ p-value < 0.05 O 0.05 ≤ p-value < 0.10 O p-value ≥ 0.10
b-3. Do you reject the null hypothesis at the 1% level? Yes, since the value of the p-value is less than the significance level. O No, since the value of the p-value is greater than the significance level. Yes, since the value of the p-value is greater than the significance level. No, since the value of the p-value is less than the significance level. b-4. Interpret the results at a = 0.01. We conclude that the population means differ. We cannot conclude that the population means differ. We conclude that population mean 1 is less than population mean 2. O We cannot conclude that population mean 1 is less than population mean 2.