PROBLEM 3. 15pts Construct the 90 percent Confidence intervals for the following cases, state any needed assumptions, and give interpretation 1. n = 9 sample mean = 75 sigma = 5. Find Confidence interval for mu 2. n= 9 sample mean = 75 S = 5. Find Confidence interval for mu 3. n= 100 items 40 are defective. Find the confidence interval of p

Solve the equation w^3 = 1,000 i honestly dont know how to punch this into a calculator pls

Marco has $38.43 dollars in his checking account. his checking account is linked to his amazon music account so he can buy music. the songs he purchases cost $1.29. part 1: write an expression to describe the amount of money in his checking account in relationship to the number of songs he purchases. part 2: describe what the variable represents in this situation.

Pls if a cow has a mass of 9×10^2 kilograms, and a blue whale has a mass of 1.8×10^5 kilograms, which of these statements is true?