Asquare piece of cardboard with each side 30 inches long hasa
square cut out at each corner. the sides are then turned up toform
an open box. find the side of the cut-out square that willproduce a
box of maximum volume.

Astudy claims that the mean age of online dating service users is 40 years. some researchers think this is not accurate and want to show that the mean age is not 40 years. identify the null hypothesis, h0, and the alternative hypothesis, ha, in terms of the parameter μ. select the correct answer below: h0: μ≥40; ha: μ< 40 h0: μ≤40; ha: μ> 40 h0: μ≠40; ha: μ=40 h0: μ=40; ha: μ≠40