The Following Information Was Obtained from Matched Samples Taken from Two

question 38

Multiple Choice

The following information was obtained from matched samples taken from two populations. The daily production rates for a sample of workers before and after a training program are shown below.Assume the population of differences is normally distributed. $\begin{array}{lll}\text { Worker } & \text { Before } & \text { After } \\1 & 20 & 22 \\2 & 25 & 23 \\3 & 27 & 27 \\4 & 23 & 20 \\5 & 22 & 25 \\6 & 20 & 19 \\7 & 17 & 18\end{array}$
Given that the null hypothesis to be tested is H₀: $\mu$ d = 0,

• A) the null hypothesis should be rejected.
• B) the null hypothesis should not be rejected.
• C) the alternative hypothesis should be revised.
• D) the null hypothesis should be revised.

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Definitions:

Lower Income Strata

Socioeconomic segments of society that earn significantly less income than the average, often leading to limited access to resources.

Protective Services

government and non-government services designed to protect individuals, particularly children, the elderly, and the vulnerable, from abuse, neglect, and exploitation.

Sociological Concepts

Ideas or theories used to understand and explain social phenomena, behaviors, and structures within human society.

Deviance

Actions or behaviors that violate social norms or values, leading to negative social judgments.