A Company Produces an Item That Is Supposed to Have

question 55

Multiple Choice

A company produces an item that is supposed to have a six centimetre hole punched in the centre.A quality control inspector is concerned that the machine which punches the hole is "out-of-control" (hole is too large or too small) .In an effort to test this, the inspector is going to gather a sample punched by the machine and measure the diameter of the hole.The alternative hypothesis used to statistical test to determine if the machine is out-of-control is

• A)the mean diameter is > 6 centimetres.
• B)the mean diameter is < 6 centimetres.
• C)the mean diameter is = 6 centimetres.
• D)the mean diameter is ≠ 6 centimetres.
• E)the mean diameter is ≥ 6 centimetres.

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Definitions:

Recessive Trait

A genetic trait that is expressed in the phenotype only when two copies of the recessive allele are present, one from each parent.

Codominance

A genetic situation in which two alleles of a gene contribute to the phenotype of the organism in separate, distinctly observable ways.

Dominant Traits

Genetic characteristics that are expressed in an organism even when only one copy of the gene is present.

Incomplete Dominance

A genetic phenomenon where the phenotype of the heterozygote lies somewhere between the phenotypes of the two homozygotes.