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A manufacturer of stereo equipment introduces new models in the fall. Retail dealers are surveyed immediately after the Christmas selling season regarding their stock on hand of each piece of equipment. It has been discovered that unless 40% of the new equipment ordered by the retailers in the fall had been sold by Christmas, immediate production cutbacks are needed. The manufacturer has found that contacting all of the dealers after Christmas by mail is frustrating as many of them never respond. This year 80 dealers were selected at random and telephoned regarding a new receiver. It was discovered that 38% of those receivers had been sold. Since 38% is less than 40%, does this mean that immediate production cutbacks are needed or can this difference of 2 percentage points be attributed to sampling? Test at the 0.05 level. Computed z = -0.37.
Wage Rate
The amount of money paid to a worker per unit of time (hour, day, etc.), which can vary based on skill, occupation, and market conditions.
Lump Sum Payment
A single payment made at a particular time, as opposed to multiple payments made over time.
Budget Line
An illustrative chart showing every possible pair of two items that a specific budget and set prices allow to be acquired.
Labor Income
Earnings derived from work or employment, including wages, salaries, bonuses, and other compensation.
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