The answer to this is 44.

**Answer:**

**The confidence interval for the population mean μ is **

**Step-by-step explanation:**

**Given :**

Number of weights of newborn girls n=185.

Mean hg

Standard deviation s=7.5 hg

Use a 95% confidence level i.e. cl=0.95

**To find : **What is the confidence interval for the population mean μ?

**Solution : **

**Using t-distribution,**

The degree of freedom

The t critical value is t=1.973.

**The confidence interval build is **

**Substitute the values,**

**Therefore, the confidence interval for the population mean μ is **

We can solve this by looking at pairs that equal 60.

6 and 10 get to 60 when multiplied. Let's see if it fits in as a perimeter.

12+20=32

So the width and length of the room is 6 meters and 10 meters.

**Answer:**

These are the answers.

**Step-by-step explanation:**