Mathematics, 17.06.2020 22:57 Heavengunn15
The Pew Internet and American Life Project report that American adults send a mean of 10 text messages per day. A random sample of 100 American adults showed a mean of 12 text messages per day with a standard deviation of 20. Test using level of significance whether the populations mean number of text messages per day differs from 10. Assume the requirements are met. Use the P-value method of testing hypothesis.
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Which linear equations have an infinite number of solutions? check all that apply. (x – 3/7) = 2/7(3/2x – 9/14)8(x + 2) = 5x – 1412.3x – 18 = 3(–6 + 4.1x)(6x + 10) = 7(x – 2)4.2x – 3.5 = 2.1 (5x + 8)
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Which graph represents the given linear function 4x+2y=3
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The Pew Internet and American Life Project report that American adults send a mean of 10 text messag...
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