The burning rates of two different solid-fuel propellants used in aircrew escape systems are being studied. it is known that both propellants have approximately the same standard deviation of burning rate, that is sigma 1 = sigma 2 = 3 centimeters per second. two random samples of n 1 = 20 and n 2 = 20 specimens are tested, the sample mean burning rates are x 1 = 18centimeters per second and x 2 = 24 centimeters per second.
a) test hypothesis that both propellants have the same mean burning rate. use alpha = 0.05. what is the p - value ? .
b) construct a 95% confidence interval on the difference in means mu 1 - mu 2. what is the practical meaning of this interval?
c) what is the beta-error of the test in part (a) if the true difference in mean burning rate is 2.5 centimeters per second?

the answer would be d.

step-by-step explanation:

move all variables to the left side and all constants to the right side

(x−3)^2+(y−1)^2=16

this is the form of a circle. use this form to determine the center and radius of the circle.

( x − h ) 2 + ( y − k ) 2 = r 2

match the values in this circle to those of the standard form. the variable   r   represents the radius of the circle,   h   represents the x-offset from the origin, and   k   represents the y-offset from origin.

r = 4

h = 3

k = 1

the center of the circle is found at   ( h , k ) .

center:   ( 3 , 1 )

these values represent the important values for graphing and analyzing a circle.

center:   ( 3 , 1 ).

radius:   4

good luck on ur quiz test or homework. have a good day : )

well, because the $0.25 is an added cost depending on how many minutes, the answer would be y = 30 + 0.25x.

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