One of the Major U

question 223

Multiple Choice

One of the major U.S. tire makers wishes to review its warranty for their rainmaker tire. The warranty is for 40,000 miles. The tire company believes that the tire actually lasts more than 40,000 miles. A
Sample 49 tires revealed that the mean number of miles is 45,000 miles with a standard deviation of 15,000 miles. Test the hypothesis with a 0.05 significance level.

• A) The decision rule is to reject if Z > 1.645. The calculated value of z is +2.33.
• B) The decision rule is to reject if Z < 1.645. The calculated value of z is -2.33.
• C) The decision rule is to reject if Z > 1.96. The calculated value of z is +2.33.
• D) The decision rule is to reject if Z < 1.96. The calculated value of z is +2.33.
• E) None of these statements is correct.

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Definitions:

Transcription

The process of transcribing DNA into RNA, a fundamental aspect of gene expression.

Transcription Factors

Proteins that regulate the transcription of genes by binding to DNA and influencing RNA synthesis.

Gene Expression

The process by which information from a gene is used in the synthesis of a functional gene product, usually proteins, affecting the cell function.

Transcription

A process in which the DNA sequence in a gene is copied into mRNA.