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 table) 01 20 RA 1 2 0 X) 245 1 27 01 5 247 2 16 02 5 a 1 Calculate the value of the test statistic under the assumption that the population variances are equal (Negative value should be indicated by a minus sign Round final answer to 3 decimal places ) Test statistic a 2 Find the p value O p value 0 01 0 01 s p value 0 025 O 0 025 s p value 0 05 O0 05 s p value 0 10 Op value 20 10 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 O No, 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 O 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 Prev 2 of 12 Next b 2 Find the p value O p value 0 01 O 0 01 p value 0 025 O 0 025 s p value 0 05 O 0 05 s p value 0 10 Op value 20 10 b 3 Do you reject the null hypothesis at the 1 level O Yes, 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 O Yes, since the value of the p value is greater than the significance level O 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 We cannot conclude that population mean 1 is less than population mean 2 Prev 2 of 12 Next

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Consider the following competing hypotheses and accompanying sample data drawn independently from normally distributed populations. (You may find it useful to reference the appropriate

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 table) 01-20 RA: #1-#2

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