A sociologist wishes to see if it is true that for a certain group of professional women, the average age at which they have their first child is 28.6 years. A random sample of 36 women is selected, and their ages at the birth of their first child are recorded. At α = 0.05, does the evidence refute the sociologist’s assertion? Assume σ = 4.18.

Step-by-step explanation:

The explanation of given question is described below:

Here, the test of hypothesis states that

The test statistic is

= 2.1

According to the given data α = 0.05,

So, the major value is

(refer to the standard normal table) .

Finally

the equation cos(35) =a/25 can be used to find the length of bc what is the length of bc? round to the nearest tenth

step-by-step explanation:

b. hannah is playing with her cousin at