You plan to estimate the mean weight of machine components of a certain type and you require a 95% level of confidence that the sample mean will be within the population mean by 0.008 g. Find the minimum sample size required. A pilot study showed that the population standard deviation is estimated to be 0.06 g.

Jackie purchased 3 bottles of water and 2 cups of coffee for the family for $7.35. ryan bought 4 bottles of water and 1 cup of coffee for his family for 7.15. how much does each bottle of water cost? how much does each cup of coffee cost?

Raj encoded a secret phrase using matrix multiplication. using a = 1, b = 2, c = 3, and so on, he multiplied the clear text code for each letter by the matrix to get a matrix that represents the encoded text. the matrix representing the encoded text is . what is the secret phrase? determine the location of spaces after you decode the text. yummy is the corn the tomato is red the corn is yummy red is the tomato

Using only odd number for numerators write two different subtraction problems that have a difference of 3/4