Mathematics, 03.08.2021 04:00 idcatall5
A random sample of adults with no children under the age of 18 years results in a mean daily leisure time of hours, with a standard deviation of hours. A random sample of adults with children under the age of 18 results in a mean daily leisure time of hours, with a standard deviation of hours. Construct and interpret a % confidence interval for the mean difference in leisure time between adults with no children and adults with children .
Answers: 1
Mathematics, 21.06.2019 16:30
The angles below are supplementary. what is the value of x? a pair of supplementary angles is shown. one angle measures 7x + 33, and the other angle measures 70. 5.3 8.14 11 14.7
Answers: 1
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
Mathematics, 22.06.2019 06:30
Agrocery store has fruit on sale -5 bananas for $1.50, 4 mangos for $5.00, and 3 oranges for $4.00. mrs. kang buys 15 bananas, 12 mangos, and 12 oranges. how much money does she spend?
Answers: 3
A random sample of adults with no children under the age of 18 years results in a mean daily leisure...
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