Express the alternative hypothesis in symbolic form. An automobile technician claims that the mean amount of time (in hours) per domestic car repair is more than that of foreign cars.
Assume that two samples are independent. Let the domestic car repair times be the first
Population and the foreign car repair times be the second population.

Question

Express the alternative hypothesis in symbolic form. An automobile technician claims that the mean amount of time (in hours)per domestic car repair is more than that of foreign cars.
Assume that two samples are independent. Let the domestic car repair times be the first
Population and the foreign car repair times be the second population. 
A) $H _ { 1 } : \mu _ { 1 } = \mu _ { 2 }$
B) $H _ { 1 } : \mu _ { 1 } < \mu _ { 2 }$
C) $H _ { 1 } : \mu _ { 1 } > \mu _ { 2 }$
D) $H _ { 1 } : \mu _ { 1 } \neq \mu _ { 2 }$

Quizplus · Accepted Answer

The alternative hypothesis (denoted $H_1$) is a statement that the parameter (in this case, the mean repair time) is affected as stated in the research hypothesis. Since the claim is that the mean amount of time for domestic car repairs is more than that for foreign cars, the correct symbolic form is $H_1 : \mu_1 > \mu_2$, where $\mu_1$ represents the mean time for domestic car repairs and $\mu_2$ represents the mean time for foreign car repairs.

Express the Alternative Hypothesis in Symbolic Form H1:μ1=μ2H _ { 1 } : \mu _ { 1 } = \mu _ { 2 }H1​:μ1​=μ2​

Express the Alternative Hypothesis in Symbolic Form $H _ { 1 } : \mu _ { 1 } = \mu _ { 2 }$