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How does the equation change when the radius changes? Unlike h and k, why is r always positive?   Another question on Mathematics Mathematics, 21.06.2019 20:30
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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 Mathematics, 22.06.2019 02:00
How does the equation change when the radius changes? Unlike h and k, why is r always positive?...
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