Solve and graph the absolute value inequality: |2x + 1| ≤ 5.
a. number line with closed...
Mathematics, 10.10.2019 01:50, montgomerykarloxc24x
Solve and graph the absolute value inequality: |2x + 1| ≤ 5.
a. number line with closed dots on negative 3 and 2 with shading going in the opposite directions.
b. number line with closed dots on negative 3 and 2 with shading in between.
c. number line with open dots on negative 3 and 2 with shading in between.
d. number line with closed dots on negative 2 and 2 with shading in between.
Answers: 3
Mathematics, 21.06.2019 19:40, joexx159
The human resources manager at a company records the length, in hours, of one shift at work, x. he creates the probability distribution below. what is the probability that a worker chosen at random works at least 8 hours? probability distribution px(x) 6 hours 7 hours 8 hours 9 hours 10 hours 0.62 0.78 пол
Answers: 1
Mathematics, 22.06.2019 01:30, kadinmorgan
Acell phone company offers two plans to its subscribers. at the time new subscribers sign up, they are asked to provide some demographic information. the mean yearly income for a sample of 40 subscribers to plan a is $45,000 with a standard deviation of $9,200. for a sample of 25 subscribers to plan b, the mean income is $64,300 with a standard deviation of $7,100. at the 0.025 significance level, is it reasonable to conclude the mean income of those selecting plan b is larger? assume unequal population standard deviations. hint: for the calculations, assume the plan a as the first sample. what is the decision rule? (negative amount should be indicated by a minus sign. round your answer to 3 decimal places.) compute the value of the test statistic. (negative amount should be indicated by a minus sign. round your answer to 2 decimal places.) what is your decision regarding h0 ? reject h0 fail to reject h0 compute the p-value. less than 0.01 between 0.01 and 0.025 between 0.025 and 0.05 between 0.05 and 0.10 greater than 0.10
Answers: 3
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