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    Hypothesis Testing: numbers of words spoken by each member of 6 randomly selected...

    Listed below are the numbers of words spoken in a day by each member of six randomly selected couples: Male: 5638, 21319, 17572, 26429, 46978, 25835 Female: 5198, 11661, 19624, 13397, 31553, 18667 Use a 0.05 significance level to test the claim among couples, males speak more words in a day...
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    Polynomial Inequalities: "Suppose a sonar device is set up in the middle of a lagoon.

    Polynomial Inequalities: "Suppose a sonar device is set up in the middle of a lagoon. Hello Again, I have another 3-part problem that I could use some assistance with. 2a. Suppose a sonar device is set-up in the middle of a lagoon. The device found the depth of the lagoon in feet, as a...
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    U-Substitution

    Hello Everybody, I'm really struggling with this following 3-part problem. Any help or guidance through them would be greatly appreciated. :) 1a. Using u-substitution, solve (x^2 - 2)^2 - 3(x^2 - 2) - 4 = 0. So I was able to figure this problem out using u-substitution and got x = (±) square...
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    U-Substitution: use to solve (x^2 - 2)^2 - 3(x^2 - 2) - 4 = 0

    Hello Everybody, I'm really struggling with this following 3-part problem. Any help or guidance through them would be greatly appreciated. :) 1a. Using u-substitution, solve (x^2 - 2)^2 - 3(x^2 - 2) - 4 = 0. So I was able to figure this problem out using u-substitution and got x = (±) square...
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