Mathematics, 29.06.2019 16:30 heyrosaphoto2610
Acertain pen has been designed so that true average writing lifetime under controlled conditions (involving the use of a writing machine) is at least 10 hr. a random sample of 17 pens is selected, the writing lifetime of each is determined, and a normal probability plot of the resulting data support the use of a one-sample t test. the relevant hypotheses are h0: μ = 10 versus ha: μ < 10. (a) if t = −2.3 and α = 0.05 is selected, what conclusion is appropriate? reject fail to reject
Answers: 3
Mathematics, 21.06.2019 17:30
Noor brought 21 sheets of stickers. she gave 1/3 of a sheet to each of the 45 students at recess. she wants to give teachers 1 1/2 sheets each.
Answers: 2
Mathematics, 21.06.2019 22:00
Ascientist has 50 grams of a radioactive element. the amount of radioactive element remaining after t days can be determined using the equation (1) after two days the scientist receives a second shipment of 50 grams of the same element. the equation used to represent the amount of shipment 2 remaining after t days is 10) - 50 which of the following is an equivalent form of the expression for the amount remaining in shipment 2? what’s the answer?
Answers: 2
Mathematics, 21.06.2019 22:30
Awindow washer cleans 42 windows in 2 hours. at this rate, how many windows did he clean in 180 minutes.
Answers: 2
Acertain pen has been designed so that true average writing lifetime under controlled conditions (in...
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