Mathematics, 01.03.2021 20:20 andrew5182
carlos's car has a device on it that measures how long it takes to come to a complete stop from whatever speed he was driving. the table below shows data from the device
Answers: 2
Mathematics, 21.06.2019 21:30
Suppose that sahil knows that 45 people with ages of 18 to 29 voted. without using a calculator, he quickly says then 135 people with ages of 30to 49 voted. is he correct? how might sohil have come up with his answer so quickly?
Answers: 3
Mathematics, 21.06.2019 23:30
Robin spent 25% more time on his research project than he had planned heβs been an extra h ours on the project which of the following expressions could represent the number of hours rob actually spent on the project
Answers: 3
Mathematics, 22.06.2019 00:30
What is the mean of the data set 125, 141, 213, 155, 281
Answers: 2
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
carlos's car has a device on it that measures how long it takes to come to a complete stop from what...
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