Solve the Problem $\frac { 1 } { 12 } \mathrm { hr }$

question 387

Multiple Choice

Solve the problem.
-One maid can clean the house in 5 hours. Another maid can do the job in 7 hours. How long will it take them to do the job working together?

• A) \(\frac { 1 } { 12 } \mathrm { hr }\)
• B) \(\frac { 35 } { 12 } \mathrm { hr }\)
• C) \(\frac { 1 } { 35 } \mathrm { hr }\)
• D) \(\frac { 35 } { 2 } \mathrm { hr }\)

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Definitions:

One-tailed Test

A statistical test in which the region of rejection is on only one side of the sampling distribution, used when testing a directional hypothesis.

Chi-square Value

A statistical measure used in the chi-square test to compare observed data with data expected to be obtained under a specific hypothesis.

One-tailed Test

A statistical test in which the region of rejection is on only one side of the sampling distribution.