Mathematics, 26.02.2020 01:30, LindaCat78
It is thought that the front cover and the nature of the first question on mail surveys influence the response rate. An article tested this theory by experimenting with different cover designs. One cover was plain; the other used a picture of a skydiver. The researchers speculated that the return rate would be lower for the plain cover. Cover Number Sent Number Returned Plain 205 101 Skydiver 211 108 Does this data support the researchers' hypothesis? Test the relevant hypotheses using α = 0.10 by first calculating a P-value. State the relevant hypotheses. (Use p1 for the plain cover and p2 for the skydiver cover.)
Answers: 2
Mathematics, 21.06.2019 17:30, hwhite41
Is trapezoid abdc the result of a dilation of trapezoid mnpq by a scale factor of ? why or why not? yes, because ab and cd are each the lengths mn and qp. yes, because sides ab and cd are parallel to sides mn and qp. no, because ab is the length mn but cd is the length qp. no, because sides ab and cd have different slopes from sides mn and qp.
Answers: 1
Mathematics, 21.06.2019 19:40, spiritcampbell56
What is the range of the function? f(x)=-2|x+1|? a. all real numbers. b. all real numbers less than or equal to 0. c. all real numbers less than or equal to 1. d. all real numbers greater than or equal to 1
Answers: 2
Mathematics, 22.06.2019 01:20, corbeansbrain
Can you me with this question? i'll reward *30 points i just need with this one question so that i could solve the others. * edit: i originally set up the question to reward 30 points, but for some reason i can only reward 15. if you don't get 30, then i'm sorry. i'm still kind of new to this site
Answers: 1
It is thought that the front cover and the nature of the first question on mail surveys influence th...
History, 06.11.2020 20:50
Arts, 06.11.2020 20:50
Mathematics, 06.11.2020 20:50
History, 06.11.2020 20:50
History, 06.11.2020 20:50