1. A random sample of 152 women showed a mean weight gain of 14.6 kg. during pregnancy. Assume a population standard deviation of 4.9 kg. Let u=the (population) mean weight gain during pregnancy. Calculate a 90% confidence interval for u.​

Three times the difference of federico’s age, and 4, increased by 7, is greater than 37. what are possible values of federico’s age?

What is the measure of ac? 5 units 13 units 26 units 39 units

Acircle has a circumference of 2 pi cm. which statement about the circumference and area is true? a comparison of the area and circumference is not possible since the area cannot be determined. the numerical values of the circumference and area of the circle are equal. the numerical value of the circumference is greater than the numerical value of the area. the numerical value of the circumference is less than the numerical value of the area.