A Researcher Is Testing a Hypothesis of a Single Mean $\alpha$

question 28

Multiple Choice

A researcher is testing a hypothesis of a single mean.The critical z value for $\alpha$ = .05 and a two?tailed test is +1.96.The observed z value from sample data is ?1.85.The decision made by the researcher based on this information is to _____ the null hypothesis.

• A) reject
• B) fail to reject
• C) redefine
• D) change the alternate hypothesis into
• E) restate

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Definitions:

Transparent Dressing

A thin, clear, adhesive covering used in medical settings to protect wounds or IV sites, allowing direct visual assessment without removal.

Antiembolic Stockings

Garments worn on the legs to promote blood circulation and prevent blood clots by applying pressure to the lower extremities.

Bedtime

The designated or habitual time at which one goes to bed to sleep.

Tissue Adhesive

A medical glue used to close wounds and surgical incisions, as an alternative to stitches or staples.