In a random sample of 150 people in a large city, 117 indicated that buying a house is a good investment.

a. A critic claims that the true proportion is .70. Test the validity of this claim against a two-

sided alternative at the 5% level of significance. In answering, write the null and alternative

hypotheses and the decision rule. Show your calculations and state your conclusion.

b. Find a 95% confidence interval estimate for the true proportion and interpret it.

c. Use your results in part (b) to explain whether you reject the claim that the true proportion

is .70.

d. Is your conclusion in part (c) the same as your conclusion in part (a)? Explain clearly.​

answer: give more info

step-by-step explanation:

26

step-by-step explanation:

central angle of a triangle has the same measure as its intercepted arc.

step-by-step explanation:

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