Decreases increases flag this question question 7 1 pts the amount of time that it takes to complete a statistic exam has a skewed left distribution with a mean of 60 minutes and a standard deviation of 9 minutes. if 36 students are randomly sampled, determine the probability that the sample mean of the sampled students is less than 56 minutes. 0.3300 0.9962 0.6700 0.0038 flag this question question 8 1 pts t

0.0038

Step-by-step explanation:

Given : Mean :

Standard deviation :

Sample size = 36

The formula for z -score :

For x= 56 ,

The p-value =

Hence, the probability that the sample mean of the sampled students is less than 56 minutes  =0.0038.

geometry: triangles

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call the larger triangle abc

then the smaller triangle cde is similar to abc (all angles are equal, aaa).  

ab is the side that is 36, and we wish to find de, the side corresponding to ab

area_cde = area_abc - area_cde --> area_abc / area_cde = 2

let x=length of de

ratio of areas = (ratio of sides)^2

+2+=+%2836%2fx%29%5e2+

+2+=+1296%2fx%5e2+

++x%5e2+=+1296%2f2+=+648+

25.45584