A manufacturer produced crankshafts for an automobile engine. The crankshaft’s diameter (5cm) is of interest because it
Posted: Thu May 05, 2022 8:17 pm
A manufacturer produced crankshafts for an automobile
engine. The crankshaft’s diameter (5cm) is of interest
because it is likely to have an impacts on warranty claims.
A random sample of shafts is tested. It is known that the
diameter is normally distributed. Is there evidence that the
mean diameter of the crankshafts is not 5cm? Use 𝛼 = 0.1
Diameter
(cm)5.054.754.844.623.945.154.774.925.795.784.155.855.575.884.81
engine. The crankshaft’s diameter (5cm) is of interest
because it is likely to have an impacts on warranty claims.
A random sample of shafts is tested. It is known that the
diameter is normally distributed. Is there evidence that the
mean diameter of the crankshafts is not 5cm? Use 𝛼 = 0.1
Diameter
(cm)5.054.754.844.623.945.154.774.925.795.784.155.855.575.884.81