Question

The target thickness for silicon wafers used in a certain type of integrated circuit is 245μm. A sample of 50 wafers is obtained and the thickness of each is determined, resulting in a sample mean thickness of 246.18 μm and a sample standard deviation of 3.60 μm. Does this data suggest that true average wafer thickness is something other than the target value at a significance level of α = 0.1? To answer your a) State the Null and Alternative hypotheses. b) Provide the test statistic. c) Determine the P -value. d) State your conclusion.

          The target thickness for silicon wafers used in a certain type of integrated circuit is 245μm. A sample of 50
wafers is obtained and the thickness of each is determined, resulting in a sample mean thickness of 246.18
μm and a sample standard deviation of 3.60 μm. Does this data suggest that true average wafer thickness
is something other than the target value at a significance level of α = 0.1?
To answer your
a) State the Null and Alternative hypotheses.
b) Provide the test statistic.
c) Determine the P -value.
d) State your conclusion.

Added by Billy D.

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