Question

According to the 2017 American Community Survey, 5.7% of all workers in

Minneapolis/St. Paul urbanized area commute to work by public transporta-

tion. What statistical procedure would you use to test whether the proportion

of workers in Minneapolis/St. Paul urbanized area commute to work by public

transportation in 2019 has changed from than in 2015?

Answer 1

answer)

Null hypothesis Ho : P = 0.057 (5.7%)

alternate hypothesis Ha : P not equal to 0.057 (5.7%)

Because thats what we want to test if

the proportion

of workers in Minneapolis/St. Paul urbanized area commute to work by public

transportation in 2019 has changed from than in 2017

So we can use one sample z proportion test here

As we have an one sample here

So the statistical procedure we will use to test whether

the proportion

of workers in Minneapolis/St. Paul urbanized area commute to work by public

transportation in 2019 has changed from than in 2017 is one sample z proportion test