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3 years ago

Review the scenario and the solution. Explain what is wrong with solution and correct the error.

Mathematics

2 answers:

butalik [34]3 years ago

7 0

2.25h(60m/hr)(1/3)=45m

So Rick spends 45 minutes studying math per night.

andrezito [222]3 years ago

5 0

He spends 45 minutes doing math.

Work - 2.25 time 60 gives the number of minutes he spent total = 135.
135 divided by 3 give the amount of time he worked on math since he
spent a third of his time on math.

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dimulka [17.4K]

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99% CI:

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We have to calculate a 99%CI for the difference of means for the vegan and the omnivore.

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$\Delta M-z*s_{Md}\leq\mu_v-\mu_o\leq \Delta M+z*s_{Md}\\\\ -0.45-2.58*1.623\leq\mu_v-\mu_o\leq -0.450+2.58*1.623\\\\-0.450-4.187\leq\mu_v-\mu_o\leq-0.450+4.187\\\\-4.637\leq\mu_v-\mu_o\leq 3.737$

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