This Question. The
A simple random sample of size nis drawn. The sample mean, x, is found to be 19.1, and the sample standard deviation, s, is found to be 4.4.
Click the icon to view the table of areas under the t-distribution.
(a) Construct a 95% confidence interval about us if the sample size, n, is 34
Lower bound Upper bound
(Use ascending order. Round to two decimal places as needed.)
(b) Construct a 95% confidence interval about if the sample size, n, is 51
Lower bound Upper bound:
(Use ascending order. Round to two decimal places as needed.)
How does increasing the sample size affect the margin of error, E?
O A The margin of error decreases
OB. The margin of error does not change
OC. The margin of error increases
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john has 55 candy left.

answer

false

explanation

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answer: a video game has three difficulty levels: easy, medium, and expert. the game's scoring works in such a way that a player has to score a fixed number of points to advance to the next level, and then the scoring starts over. the total score needed to clear all three difficulty levels is 7,500. two times the number of points needed to clear the easy level is 500 more than the number of points needed to clear the medium level. twice the number of points needed to clear the medium difficulty level is 1,500 more than the number of points needed to clear the expert level. if x, y, and z represent the easy, medium, and expert levels, respectively, and a is the coefficient matrix of the system of equations modeling this situation, identify the inverse matrix, a-1, and the solution matrix, x, of the system of equations.

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rauschg

rauschg · hand

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step-by-step explanation:

answer: the angel abc is 30°,and the abc is a triangle where the angel bac is 90°

so ac is the half of 24=12ft,and from the pythagorean theorem we find ba

ba=√bc^2-ac^2=√576-144=√432=12√3ft

so bac is 12+12√3=12(1+√3)ft