Determine the critical values for the following tests for the population mean wi

Question

Determine the critical values for the following tests for the population mean with an unknown population standard deviation. The analysis is based on 13 observations drawn from a normally distributed population at a 1% level of significance. Use Table 2. (Negative value should be indicated by a minus sign. Round your answers to 3 decimal places.)

a.

H0: ? ? 50 versus HA: ? > 50

Determine the critical values for the following tests for the population mean with an unknown population standard deviation. The analysis is based on 13 observations drawn from a normally distributed population at a 1% level of significance. Use Table 2. (Negative value should be indicated by a minus sign. Round your answers to 3 decimal places.)

Explanation / Answer

Degrees of freedom = n-1 = 13-1 = 12

Alpha = 1% =0.01

(a) 2.681

(b) ± 3.055

(c) -2.681

(d) ± 3.055

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