A computer professor is interested in studying the amount of time it would take students enrolled in the Introduction to Computers course to write and run a program in Matlab. The professor hires you to analyze the following results in minutes from a random sample of 9 students: 10 12 8 16 12 13 10 11 15

Required:
At the 0.05 level of significance, is there evidence that the population average time is greater than 10 minutes?

Following are the solution to the given question:

Step-by-step explanation:

In this question, firstly we calculating the

It is an upper test  and testing the statistics:

So, the test statistics

critical value =2.306 ( using t-table )

Decision: We should not reject the null hypothesis.

so firstly, we need to isolate the y variables to be able to solve these inequalities. firstly, add 0.5x on both sides of the first inequality and subtract 1.5x on both sides of the second inequality:

now since the slope is positive for the first inequality, this means that the line going upwards belongs to the first inequality, and the line going downwards belongs to the second inequality.

next, since y ≥ in the first inequality, this means that the shaded region will be above the first inequality's line, thus shading regions a and b.

next, since y ≤ in the second inequality, this means that the shaded region is going to be below this line, thus shading regions a and c.

since both lines shade region a, this means that region a is the solution.

step-by-step explanation:

mark brainliest!