TABLE 12-1 A Corporation Randomly Selects 150 Salespeople and Finds That 66

question 46

Multiple Choice

TABLE 12-1
A corporation randomly selects 150 salespeople and finds that 66% who have never taken a self-improvement course would like such a course. The firm did a similar study 10 years ago in which 60% of a random sample of 160 salespeople wanted a self-improvement course. The groups are assumed to be independent random samples. Let π₁ and π₂ represent the true proportion of workers who would like to attend a self-improvement course in the recent study and the past study, respectively.
-Referring to Table 12-1, if the firm wanted to test whether this proportion has changed from the previous study, which represents the relevant hypotheses?

• A) H₀: π₁ - π₂ = 0 versus H₁: π₁ - π₂ ≠ 0
• B) H₀: π₁ - π₂ ≠ 0 versus H₁: π₁ - π₂ = 0
• C) H₀: π₁ - π₂ ≤ 0 versus H₁: π₁ - π₂ > 0
• D) H₀: π₁ - π₂ ≥ 0 versus H₁: π₁ - π₂ < 0

Recognize the importance of social networks and emotional well-being in late adulthood.

Understand the implications of age-related fears and phobias on the lifestyle of older adults.

Appreciate the impact of aging on self-esteem and body self-esteem.

Understand the challenges of living arrangements and their impact on older adults.

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Definitions:

Five-figure Accuracy

A level of precision where a number is accurate to the fifth digit.

Accurate

Characterized by preciseness and exactness in details or measurements.

Terminating Decimal

A decimal that comes to an end or has a finite number of digits after the decimal point.

Decimal Equivalent

The numerical representation of a fraction where the numerator is divided by the denominator to produce a decimal.