Consider the following hypotheses: H₀: = 360 H_A: 360 The population is normally distributed with a population standard deviation of 73.(You may find it useful to reference the appropriate table: z tableort table) a-1.Calculate the value of the test statistic withxx = 389 andn= 80.(Round final answer to 2 decimal places.) a-2.What is the conclusion at the 10% significance level? multiple choice 1

• Do not reject H₀ since the p-value is greater than the significance level.
• Do not reject H₀ since the p-value is less than the significance level.
• Reject H₀ since the p-value is greater than the significance level.
• Reject H₀ since the p-value is less than the significance level.

a-3. Interpret the results at = 0.10. multiple choice 2

• We cannot conclude that the population mean differs from 360.
• We conclude that the population mean differs from 360.
• We cannot conclude that the sample mean differs from 360.
• We conclude that the sample mean differs from 360.

b-1.Calculate the value of the test statistic withxx = 335 andn= 80.(Negative value should be indicated by a minus sign. Round final answer to 2 decimal places.) b-2.What is the conclusion at the 5% significance level? multiple choice 3

• Reject H₀ since the p-value is greater than the significance level.
• Reject H₀ since the p-value is less than the significance level.
• Do not reject H₀ since the p-value is greater than the significance level.
• Do not reject H₀ since the p-value is less than the significance level.

b-3. Interpret the results at = 0.05. multiple choice 4

• We conclude that the population mean differs from 360.
• We cannot conclude that the population mean differs from 360.
• We conclude that the sample mean differs from 360.
• We cannot conclude that the sample mean differs from 360.