Mathematics, 05.12.2019 01:31 hhomeschool24
Childhood participation in sports, cultural groups, and youth groups appears to be related to improved self-esteem for adolescents. (mcgee, williams, howden-chapman, martin & kawachi, 2006). in representative study, a sample of n = 100 adolescents with a history of group participation is given a standardized self-esteem questionnaire. for the general population of adolescents scores on this questionnaire form a normal distribution with a mean of ? = 50and a standard deviation of ? =15. the sample group-participation adolescents had an average of m=53.8.a) does the sample provide enough evidence to conclude that self-esteem scores for those adolescents are significantly different from those of the general population? use the two tailed test with a= .05
Answers: 1
Mathematics, 21.06.2019 15:00
Alake near the arctic circle is covered by a 222-meter-thick sheet of ice during the cold winter months. when spring arrives, the warm air gradually melts the ice, causing its thickness to decrease at a constant rate. after 333 weeks, the sheet is only 1.251.251, point, 25 meters thick. let s(t)s(t)s, left parenthesis, t, right parenthesis denote the ice sheet's thickness sss (measured in meters) as a function of time ttt (measured in weeks).
Answers: 1
Mathematics, 21.06.2019 17:30
Asphere has a diameter of 10 in. what is the volume of the sphere?
Answers: 1
Mathematics, 21.06.2019 19:00
If (x-2) 2= 49, then x could be a. -9 b. -7 c.- 2 d. 5 e.9
Answers: 2
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