Mathematics, 19.05.2020 18:00, luusperezzz
"D" size batteries produced by MNM Corporation have had a life expectancy of 87 hours. Because of an improved production process, the company believes that there has been an increase in the life expectancy of its "D" size batteries. A sample of 36 batteries showed an average life of 88.5 hours. Assume from past information that it is known that the standard deviation of the population is 9 hours. Use a 0.01 level of significance, and test to determine if there has been an increase in the life expectancy of the "D" size batteries. Using the above information to answer questions 32-34. What would be your null and alternative hypotheses?
Answers: 2
Mathematics, 21.06.2019 19:20, joelpimentel
Which number line represents the solution set for the inequality - x 24?
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Mathematics, 21.06.2019 20:50, george27212
Find the equation of a line that is perpendicular to line g that contains (p, q). coordinate plane with line g that passes through the points negative 3 comma 6 and 0 comma 5 3x β y = 3p β q 3x + y = q β 3p x β y = p β q x + y = q β p
Answers: 1
"D" size batteries produced by MNM Corporation have had a life expectancy of 87 hours. Because of an...
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