Mathematics, 30.06.2019 03:10 dee0828
In a study of cell phone usage and brain hemispheric dominance, an internet survey was e-mailed to 6965 subjects randomly selected from an online group involved with ears. there were 1330 surveys returned. use a 0.01 significance level to test the claim that the return rate is less than 20%. use the p-value method and use the normal distribution as an approximation to the binomial distribution. identify the null hypothesis and alternative hypothesis. a. upper h 0: pequals0.2 upper h 1: pless than0.2 b. upper h 0: pgreater than0.2 upper h 1: pequals0.2 c. upper h 0: pequals0.2 upper h 1: pnot equals0.2 d. upper h 0: pnot equals0.2 upper h 1: pequals0.2 e. upper h 0: pless than0.2 upper h 1: pequals0.2 f. upper h 0: pequals0.2 upper h 1: pgreater than0.2 the test statistic is zequals nothing. (round to two decimal places as needed.) the p-value is nothing. (round to three decimal places as needed.) because the p-value is
Answers: 2
Mathematics, 21.06.2019 20:30
Solve each quadratic equation by factoring and using the zero product property. 10x + 6 = -2x^2 -2
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Mathematics, 21.06.2019 20:30
For the quadratic function [tex]y=(x+4)^2-1[/tex] , do the following: a) rewrite the function in the standard form, b) rewrite the function in intercept form, c) find the vertex, d) find the y-intercept, e) find the x-intercepts.
Answers: 1
In a study of cell phone usage and brain hemispheric dominance, an internet survey was e-mailed to 6...
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