DO NOT ANSWER UNLESS YOU KNOW IT. Use the given degree of confidence and sample data to construct a confidence interval for the population mean µ. Assume that the population has a normal distribution. Show your work. n = 30, x = 89.3, s = 18.9, 90 percent

A) (79.79, 98.81)
B) (82.24, 96.36)
C) (83.47, 95.13)
D) (83.44, 95.16)

pls ask

find the magnitude of the trig term  

csc

(

x

)

−

1

by taking the absolute value of the coefficient.

1

find the lower bound of the range.

tap for more

y

=

−

2

find the upper bound of the range.

tap for more

y

=

0

the range is  

y

≤

−

2

or  

y

≥

0

.

(

−

∞

,

−

2

]

∪

[

0

,

∞

)

{

y

|

y

≤

−

2

,

y

≥

0

}

step-by-step explanation:

you can't solve x because it is 2 linear equation and you only have one equation