Solve the problem. for large numbers of degrees of freedom, the critical chi χ squared 2 values can be approximated using the formula chi χ squared 2 equals = one half (x plus startroot 2 x minus 1 endroot )squared 1 2 z+ 2k−12, where k is the number of degrees of freedom and z is the critical value. to find the lower critical value, the negative z-value is used, to find the upper critical value, the positive z-value is used. use this approximation to estimate the critical value of chi χ squared 2 in a right-tailed hypothesis test with n equals =143 and alpha α equals =0.01.

three-fourths of an hour

36÷48=0.75

0.75=

is this part of a question or something

answer: b

step-by-step explanation:

let f (x ) is a function and c be a positive real number,   the graph of the function g (x ) = f (cx ) is represented as follows.

when, c > 1,   the function compresses it in the x - direction.

when, 0 < c < 1, the function stretches it.

the function is g ( x ) = (9x )2.

the heighest power of x in g ( x ) = (9x )2 is 2, so the parent function is square function.

the equation of parent function is f ( x ) = x 2 .

the function is g ( x ) = (9x )2 and the parent function is f ( x ) = x 2 .

so, the functions f and g have the following relationship.

g ( x ) = f ( 9x ).

compare the function g ( x ) = f ( 9x ) with g (x ) = f (cx ).

c = 9 ( > 1 ).

so, the function g (x ) = (9x )2 compresses it in the x - direction.

step-by-step explanation: