Mathematics, 10.07.2019 18:30 Donlito8535
Ninety percent of a schools students, or 540 students, attended a school assembly. how many students are there at the school?
Answers: 2
Mathematics, 21.06.2019 17:30
Which expression can be used to determine the slope of the line that passes through the points -6, three and one, -9
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Mathematics, 21.06.2019 18:20
Inez has a phone card. the graph shows the number of minutes that remain on her phone card a certain number of days.
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Mathematics, 22.06.2019 01:30
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
Ninety percent of a schools students, or 540 students, attended a school assembly. how many students...
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