Mathematics, 10.10.2019 22:00 scottbrandon653
The economic policy institute periodically issues reports on wages of entry level workers. the institute reported that entry level wages for male college graduates were $21.68 per hour and for female college graduates were $18.80 per hour in 2011 (economic policy institute website, march 30, 2012). assume the standard deviation for male graduates is $2.30, and for female graduates it is $2.05 what is the probability that a sample of 50 male graduates will provide a sample mean within $.50 of the population mean, $21.68?
what is the probability that a sample of 50 female graduates will provide a sample mean within $.50 of the population mean, $18.80?
what is the probability that a sample of 120 female graduates will provide a sample mean more than $.30 below the population mean?
Answers: 2
Mathematics, 21.06.2019 18:30, andrewmena05
Kayla wants to find the width, ab, of a river. she walks along the edge of the river 65 ft and marks point c. then she walks 25 ft further and marks point d. she turns 90° and walks until her location, point a, and point c are collinear. she marks point e at this location, as shown. (a) can kayla conclude that δ and δ are similar? why or why not? (b) suppose de = 15 ft. what can kayla conclude about the width of the river?
Answers: 2
Mathematics, 21.06.2019 20:30, nosugh
If m∠abc = 70°, what is m∠abd? justify your reasoning. using the addition property of equality, 40 + 70 = 110, so m∠abd = 110°. using the subtraction property of equality, 70 − 30 = 40, so m∠abd = 30°. using the angle addition postulate, 40 + m∠abd = 70. so, m∠abd = 30° using the subtraction property of equality. using the angle addition postulate, 40 + 70 = m∠abd. so, m∠abd = 110° using the addition property of equality.
Answers: 2
Mathematics, 22.06.2019 02:20, yarrito20011307
According to the general equation for conditional probability, if p(ab) = 4/5 and p(b)= 5/6, what is p(a|b)? a. 8/9 b. 35/36 c. 24/25 d. 15/16
Answers: 2
The economic policy institute periodically issues reports on wages of entry level workers. the insti...
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