Mathematics, 06.12.2019 02:31 lenaeeee
Arandom sample of 100 people from city a has an average iq of 120 with a sd of 18. independently of this, a random sample of 150 people from city b has an average iq of 116 with a sd of 15. are residents of city a smarter on average? make a z-test of the difference in average iqs; the null hypothesis is that there is no difference.
Answers: 2
Mathematics, 21.06.2019 12:50, vandarughb2875
Asequence of numbers begins with 12 and progresses geometrically. each number is the previous number divided by 2. which value can be used as the common ratio in an explicit formula that represents the sequence? 1/2 2 6 12
Answers: 3
Mathematics, 21.06.2019 20:40, kaylabethany
How is the equation of this circle written in standard form? x2 + y2 - 6x + 14y = 142 a) (x - 3)2 + (y + 7)2 = 200 b) (x+ 3)2 + (y - 7)2 = 200 (x - 6)2 + (y + 14)2 = 142 d) (x+6)2 + (y- 14)2 = 142
Answers: 1
Arandom sample of 100 people from city a has an average iq of 120 with a sd of 18. independently of...
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