Which of the following is the main purpose for conducting a hypothesis test about a population mean? A. To decide if the data is from a simple random sample

B. To decide if the data of the sample is large enough

C. To decide if the data is suitable for constructing a confidence interval

D. To decide if the observed experimental result is due to chance

Afurniture manufacturer produces chairs and sofas. each chair requires 10 yards of fabric, and each sofa requires 20 yards of fabric. the manufacturer has 300 yards of fabric available. to fulfill orders, the number of sofas must be at least twice the number of chairs. let x be the number of chairs and y the number of sofas. which inequalities are described in the problem? check all of the boxes that apply

Triangle xyz has vertices x(1,3), y(0,0)

How long does it take natsumi to clean up after she is done? table: .area time30. 245. 2.7560. 3.5