In a Local Community There Are Three Grocery Chain Stores

question 122

Multiple Choice

In a local community there are three grocery chain stores. The three have been carrying out a spirited advertising campaign in which each claims to have the lowest prices. A local news station recently sent a reporter to the three stores to check prices on several items. She found that for certain items each store had the lowest price. This survey didn't really answer the question for consumers. Thus, the station set up a test in which 20 shoppers were given different lists of grocery items and were sent to each of the three chain stores. The sales receipts from each of the three stores are recorded in the data file Groceries. Based on a significance level of 0.05 and these sample data, test to determine whether blocking was necessary in this example. Use a test-statistic approach.

• A) Since 952.6155 > 1.8673 do not reject H0 and conclude that there is an indication that blocking was not effective.
• B) Since 952.6155 > 1.8673 reject H0 and conclude that there is an indication that blocking was effective.
• C) Since 102.2912 > 1.8673 do not reject H0 and conclude that there is an indication that blocking was not effective.
• D) Since 102.2912 > 1.8673 reject H0 and conclude that there is an indication that blocking was effective.

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Definitions:

Huntington Disease

A genetic disorder that causes the progressive breakdown of nerve cells in the brain, leading to physical and mental deterioration.

Genotypic

Referring to the genetic constitution of an organism, including all of its genes and alleles, which influences its phenotypic traits.

Autosomal Dominant

A pattern of inheritance where a trait is expressed if at least one copy of the dominant allele is present on a non-sex chromosome.

Inherited Condition

A health condition or trait that is passed from parents to their offspring through genes.