Mathematics, 18.12.2019 02:31 Fetty1738
Calculate the test statistic. (a z-score and a t-score are examples of test statistics.)
(a) the cost of a daily newspaper varies from city to city. a study was done to test the claim that the average cost of a daily newspaper is $0.45 . ten cities were surveyed; the average cost was $0.40 with a standard deviation of $0.05.
(b) your statistics instructor claims that 60 percent of the students who take an elementary statistics class go through life feeling more enriched. for some mysterious reason, most people don’t believe this. you decide to check this out on your own. you randomly survey 70 former elementary statistics students and find that 30 feel more enriched as a result of the class.
Answers: 2
Mathematics, 21.06.2019 14:00
Find the area of a trapezoid with bases 14 cm and 18 cm and height 10 cm. 160 cm2 140 cm2 180 cm2 126 cm2
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Mathematics, 21.06.2019 16:30
You are updating your garage and the only thing left to paint is your garage day. you're only going to paint the slide that faces the street. the garage door is 9 fert 8inches tall and 120 inches wide. you need to know the surface area of the side of the garage door to determine how much paint to buy. the hardware store sells paint by how much covers a square foot. what is the surface area you should report to the hardware store what is the answer
Answers: 3
Mathematics, 21.06.2019 17:20
Which functions shave a maximum and are transformed to the left and down of the parent function ,check all that apply f(x) = x2? p(x) =14 (x+7)2 + 1
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Mathematics, 21.06.2019 19:10
The triangles in the diagram are congruent. if mzf = 40°, mza = 80°, and mzg = 60°, what is mzb?
Answers: 2
Calculate the test statistic. (a z-score and a t-score are examples of test statistics.)
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