P, Q, R & S form the vertices of a quadrilateral. â 

PQR = 71° and

â 

RSP = 129°.

Find the value of

â 

SPQ=?

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.

Explain why the factor 1.5 is broke. into two numbers in the model.

What’s the range cuz i can’t find it?