Mathematics, 04.09.2019 02:30, juan1216av
Amanufacturer of new light bulbs claims the average lifetime of its long-life bulb is more than 4000 hours. to test this claim, a reputable testing firm took a random sample of 100 bulbs and life tested them. the testing firm found the average life of the sample to be 4500 hours with a sample standard deviation, s = 400 hours. the value of the test statistic for this problem isa 1.25b -1.25c 12.5d -12.5e none of the values listed
Answers: 2
Mathematics, 21.06.2019 16:30, dominickstrickland
The spring the owner of a sporting good store decreases the price of winter gloves from $10 to $8 each increases the price of swimming goggles from $8 to $10 without doing the math you think the percent decrease in the price of the gloves the same as the percent increase of the goggles explain why or why not
Answers: 1
Mathematics, 21.06.2019 17:30, pleasehelpme666
Δabc is dilated by a scale factor of 3 with the origin as the center of dilation to form δa′b′c′. the slope of is -1.2. the length of is p units, the length of is q units, and the length of is r units. the slope of is . the length of is units.
Answers: 2
Mathematics, 21.06.2019 18:00, TGJuuzouSuzuya
!! 10 ! a westbound jet leaves central airport traveling 635 miles per hour. at the same time, an eastbound plane departs at 325 miles per hour. in how many hours will the planes be 1900 miles apart?
Answers: 1
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