Use the Following to Answer Questions

question 14

Multiple Choice

Use the following to answer questions :
A sample of 16 from a population produced a mean of 86.9 and a standard deviation of 14.3.A sample of 18 from another population produced a mean of 75.4 and a standard deviation of 15.9.Assume that the two populations are normally distributed and the standard deviations of the two populations are equal.
The null hypothesis is that the two population means are equal,while the alternative hypothesis is that the mean of the first population is greater than the mean of the second population.The significance level is 1%.
-What is the critical value of t for the hypothesis test?

• A)2.738
• B)2.449
• C)2.441
• D)2.733

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Definitions:

Research and Development

activities in connection with corporate or governmental innovation. R&D is a component of innovation and is situated at the front end of the innovation lifecycle.

Accumulation of Cash

Accumulation of cash refers to the process of systematically saving and collecting cash within a company for future use, often for investment, operational needs, or as a reserve.

Recognition of Depreciation

The accounting process of systematically allocating the cost of a tangible asset over its useful life, reflecting the asset's consumption, wear and tear, or obsolescence.

Acquisition Cost

The total cost incurred to acquire an asset, including the purchase price and related expenses.