Performance Task: Sign Production

Find the value of the cosine for angle a

Describe in detail how you would construct a 95% confidence interval for a set of 30 data points whose mean is 20 and population standard deviation is 3. be sure to show that you know the formula and how to plug into it. also, clearly state the margin of error.

Choose the correct translation for the following statement. it is at most ten. x< 10 x< 10 x> 10 x> 10