Mathematics, 19.02.2020 00:22 brandyrushing3
For the next two questions, let the null and alternative hypotheses be LaTeX: H_0H 0: LaTeX: \mu=\:8μ = 8 and LaTeX: H_aH a : LaTeX: \mu>8μ > 8. Assume that the population standard deviation LaTeX: \sigmaσ is not known. Becca collects a sample of size LaTeX: n=9n = 9 and computes LaTeX: \overline{x}=11x ¯ = 11 and LaTeX: s=6s = 6. Is LaTeX: \sigmaσ known?
Answers: 2
Mathematics, 21.06.2019 18:00, peytondavis2424
Plz determine whether the polynomial is a difference of squares and if it is, factor it. y2 – 196 is a difference of squares: (y + 14)2 is a difference of squares: (y – 14)2 is a difference of squares: (y + 14)(y – 14) is not a difference of squares
Answers: 1
Mathematics, 21.06.2019 21:30, stressedmolly8387
An annual marathon covers a route that has a distance of approximately 26 miles. winning times for this marathon are all over 2 hours. the following data are the minutes over 2 hours for the winning male runners over two periods of 20 years each. earlier period 14 12 15 22 13 10 19 13 9 14 20 18 16 20 23 12 18 17 6 13 recent period 7 11 7 14 8 9 11 14 8 7 9 8 7 9 9 9 9 8 10 8 (a) make a stem-and-leaf display for the minutes over 2 hours of the winning times for the earlier period. use two lines per stem. (use the tens digit as the stem and the ones digit as the leaf. enter none in any unused answer blanks. for more details, view how to split a stem.) minutes beyond 2 hours earlier period 0 1 2 (b) make a stem-and-leaf display for the minutes over 2 hours of the winning times for the recent period. use two lines per stem. (use the tens digit as the stem and the ones digit as the leaf. enter none in any unused answer blanks.) minutes beyond 2 hours recent period (c) compare the two distributions. how many times under 15 minutes are in each distribution
Answers: 2
For the next two questions, let the null and alternative hypotheses be LaTeX: H_0H 0: LaTeX: \mu=\:8...
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