You randomly select and measure the contents of bottles of cough syrup. The results​ (in fluid​ ounces) are shown to the right 4.211 4.298
4.258
4.242
4.182
4.243
4.266
4.243
4.226
4.234
Assume the sample is taken from a normally distributed population. Construct ​90% confidence intervals for​ (a) the population variance and​ (b) the population standard deviation . Interpret the results.

x = 23.78

step-by-step explanation:

the system of inequalities is

step-by-step explanation:

step 1

find the equation of the dashed line

we have the points

(0,0) and (3,1)

the line passes through the origin, so, is a direct variation

find the slope

the equation of the dashed line is

the solution of the inequality a s the shaded area above the dashed line

therefore

the equation of the inequality a is

step 2

find the equation of the solid line

we have the points

(4,0) and (0,4)

find the slope

the equation of the solid line is

the solution of the inequality b s the shaded area below the solid line

therefore

the equation of the inequality b is

step 3

the system of inequalities is

1 + (6 / x - 1)

step-by-step explanation:

divide using polynomial division.

my name jeff

step-by-step explanation:

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