Question

Determine the decision rule using Z critical value and the sample mean critical value for the type of hypothesis test with a population standard deviation of 6 with a sample size of 80.

a) αα = 0.03 Lower tailed test Ho: μμ ≥≥ 193

What is the direction of this decision rule? Select an answer If Zo < OR Zo > If Zo > If Zo <

What is the critical Zo score?   (Round to 3 decimal places)

What is the sample mean critical value?   (Round to 4 decimal places)

b) αα = 0.04 Upper-tailed test Ho: μμ  ≤≤ 193

What is the direction of this decision rule? Select an answer If Zo < OR Zo > If Zo < If Zo >

What is the critical Zo score?   (Round to 3 decimal places)

What is the sample mean critical value?  (Round to 4 decimal places)

c) αα = 0.055 Two-tailed test Ho: μμ = 193

What is the direction of this decision rule? Select an answer If Zo > If Zo < OR Zo > If Zo <

What is the critical Zo score? ±±   (Round to 3 decimal places)

What is the sample mean critical value? Select an answer If the sample mean > 194.2873 If the sample mean < 191.7127 If the sample mean < 191.7127 OR the sample mean > 194.2873    (Round to 4 decimal places)

Answer 1

Anys! 292450103 lower talled test M: M7193 Direction Zo< Critical to score = = - 1881 Sample mean contcal value = 193+ (-1.88114_6 191.7383 5B0 is) Q0.04 Upperteiled test Ho! 4 3193 Direction - Zo> Coitical score = 1.751 Soromple mean criticeel voelve = 193 +1.7517_6 194.1744 (0) 0.055 7wotalled test Ho! U=193 Dioecon ! If z DT Z Critical zo score = E919 Sample mean coltical value If sample mean <191.7127 Dr Sample mean y 194•2873 CS Scanned with CamScanner