For a One-Tailed Test (Upper Tail) with a Sample Size

question 63

Multiple Choice

For a one-tailed test (upper tail) with a sample size of 900, the null hypothesis will be rejected at the .05 level of significance if the test statistic is _____.

• A) less than or equal to -1.645
• B) greater than or equal to 1.645
• C) less than 1.645
• D) less than -1.96

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Definitions:

Biopsy

A medical test involving the extraction of sample cells or tissues for examination to determine the presence or extent of a disease.

Genetic Abnormalities

Irregularities in DNA that can lead to diseases or conditions.

Ultrasound

A medical imaging technique that uses high-frequency sound waves to produce images of structures within the body, commonly used during pregnancy.

CT-Scan

A medical imaging technique using computer-processed combinations of X-ray measurements taken from different angles to create cross-sectional images of the body.