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.​

Answer is in the photo. I couldn't attach it here, but uploaded it to a file hosting. link below! Good Luck!

cutt.ly/4zZs6GM

15

step-by-step explanation:

we are given the following expression and we are to solve it and find the product:

-13 × (-5)

solving the given expression in the standard order of solving a mathematical expression, beginning with the opening of brackets and then multiplying the terms and changing their signs.

-3 × -5 = 15 (answer is positive because when negative is multiplied with negative, it gives a positive answer)

6/20

step-by-step explanation: