Mathematics, 22.06.2019 14:00 kraigstlistt
An experimenter has prepared a drug dosage level that she claims will induce sleep for 80% of people suffering from insomnia. after examining the dosage, we feel that her claims regarding the effectiveness of the dosage are inflated. in an attempt to disprove her claim, we administer her prescribed dosage to 20 insomniacs and we observe y , the number for whom the drug dose induces sleep. we wish to test the hypothesis h0 : p = .8 versus the alternative, ha : p < .8. assume that the rejection region {y ≤ 12} is used.
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Mathematics, 21.06.2019 20:30
Solve each quadratic equation by factoring and using the zero product property. [tex]x^2+6x+8=0[/tex]
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Mathematics, 22.06.2019 01:00
Rewrite the polynomial -9x5 + 36x4 + 189x3 in factored form.
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Mathematics, 22.06.2019 07:00
2. a family eats at a restaurant. the bill is $42. the family leaves a tip and spends $49.77. a. how much was the tip in dollars? b. how much was the tip as a percentage of the bill?
Answers: 2
Mathematics, 22.06.2019 07:10
Given z value let x be a normal random variable with standard deviation (d) = 1.65 (i) find the margin of error for a 90 percent confidence interval for mean corresponding to a sample size of 12 (3/100) (ii) interpret the result of question 3( (4/100) /- [cpt115] -5 (ii) with reference to question 3(d)(i), find an approximate 90 percent confidence interval for mean if the 12 sample values of x are as follows: 95 103 107 98 90 110 92 108 90 94 105 100 (7/100) interpret the result of question 3(d)(ii) (iv)
Answers: 1
An experimenter has prepared a drug dosage level that she claims will induce sleep for 80% of people...
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