Mathematics, 20.07.2019 08:00, lankfordcrystal81
Here are the iq test scores of 31 seventh-grade girls in a midwest school district: 114 100 104 89 102 91 114 114 103 105 108 130 120 132 111 128 118 119 86 72 111 103 74 112 107 103 98 96 112 112 93 these 31 girls are an srs of all seventh-grade girls in the school district. suppose that the standard deviation of iq scores in this population is known to be σ = 15. we expect the distribution of iq scores to be close to normal. estimate the mean iq score for all seventh-grade girls in the school district, using a 99% confidence interval.
Answers: 1
Mathematics, 21.06.2019 13:50, miacervenka
At a sand and gravel plant, sand is falling off a conveyor and onto a conical pile at a rate of 16 cubic feet per minute. the diameter of the base of the cone is approximately three times the altitude. at what rate is the height of the pile changing when the pile is 12 feet high? (hint: the formula for the volume of a cone is v = 1 3 πr2h.)
Answers: 3
Mathematics, 21.06.2019 16:40, cthompson1107
The table shows the total distance that myra runs over different time periods. which describes myra’s distance as time increases? increasing decreasing zero constant
Answers: 2
Here are the iq test scores of 31 seventh-grade girls in a midwest school district: 114 100 104 89...
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