Listed below are systolic blood pressure measurements (mm Hg) taken from the right and left arms of the same woman. Assume that the paired sample data is a simple random sample
and that the differences have a distribution that is approximately normal. Use a 0.10
significance level to test for a difference between the measurements from the two arms. What
can be concluded?
Right arm 145,142,123,132,135
Left arm 182,169,184,147,138 Identify the P-value. P-value=??

solution:

as, mean is defined as sum of all the observations divided by total number of observations.

and , median is mid value of the data whether arranged in ascending order or descending order.

consider, roadsters:

2,3,4,5,6,7,8,9

mean =

also, median= , because number of observations is even, so median is mean of two mid values.

now, coming to bandits

2,3,4,5,6

mean =  

median = 4, as number of observations is odd.

so, roadsters has greater median as well mean than bandits.

→option a is true about the repairs performed on 2 types of cars:

bandits have lower median and mean than roadsters.

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note: the best i know.

answer: it's d

step-by-step explanation:

a

step-by-step explanation: