It Was Thought That Hypnosis Would Lower a Person's Need $\alpha = 0.5$

question 82

Multiple Choice

It was thought that hypnosis would lower a person's need to smoke. A researcher decided to investigate this hypothesis using the paired-sample sign test. Given that the critical value for ten samples at $\alpha = 0.5$ (single-sided) is 1, is there enough evidence to support the hypothesis?
$\begin{array}{ccc}\hline \text { Subject } & \begin{array}{c}\text { Before Hypnosis } \\\text { cigarettesfday }\end{array} & \begin{array}{c}\text { After Hypnosis } \\\text { cigarettes/day }\end{array} \\\hline 1 & 18 & 16 \\2 & 20 & 18 \\3 & 25 & 25 \\4 & 15 & 10 \\5 & 19 & 20 \\6 & 21 & 23 \\7 & 30 & 26 \\8 & 16 & 15 \\9 & 13 & 14 \\10 & 20 & 18 \\\hline\end{array}$

• A) The critical value is less than the test value; therefore, there is not enough evidence to support the hypothesis.
• B) The critical value is greater than the test value; therefore, there is not enough evidence to support the hypothesis.
• C) The critical value is less than the test value; therefore, there is enough evidence to support the hypothesis.
• D) The critical value is greater than the test value; therefore, there is enough evidence to support the hypothesis.

Understand the conditions under which companies declare different types of dividends.

Evaluate the impact of dividends on company liquidity and retained earnings.

Understand the concept and impact of conspicuous consumption on personal financial decisions.

Interpret the relationship between income changes and consumer behavior, such as saving and spending patterns.

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Definitions:

NaBH4

Sodium borohydride, a chemical compound used as a reducing agent in organic synthesis.

Alditol

A type of sugar alcohol formed by the reduction of the aldehyde or ketone group in monosaccharides.

L-Erythrose

A four-carbon sugar, or tetrose, with the chemical formula C4H8O4, one of the simplest aldose configurations.

NaBH4

Sodium borohydride, a reducing agent widely used in organic chemistry for the reduction of aldehydes, ketones, and aldehydes to alcohols.