We are interested in assessing the number of ropes a person can jump rope . We have a random sample of 34 people and find that the average person can jump rope 14.2 times with a standard deviation of 2.7. What is the 80% confidence interval for the actual average number of ropes a person can jump? Enter your answers accurate to one decimal place.

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step-by-step explanation:

i dony know

step-by-step explanation:

the slope of the line is 60

one point on the line is (40,10)

step-by-step explanation:

in the equation outside the parenthesis the equation always tells you the slope. in this case it is 60.

in the parenthesis is also says 40 which is x because it is near the x and 10 is y because it is near y.

answer

d. 10

explanation

the distance from point y to wx is the height of the triangle.

using pythagoras theorem,

group similar terms to get,

this implies that,

take positive square root of both sides to get,

this implies that,