Asample of 100 mortgages approved during the current year showed that 31 were issued to a single-earner family orindivdual. the historical percentage is 25 percent (a) at the .05 level of significance in a right-tailed test, has thepercentage of single-earner or individual mortgages risen? include a sketch of your decision rule and show all work (b) isthis a close decision? (c) state any assumptions that are required.

step-by-step explanation:

i believe its "c" because all of the other options include a but it could be d because there is a way of financing with cash at certain places but its uncommon.

move it to the other side

step-by-step explanation:

step-by-step explanation:

this can be solved first with pythagorean theorem, which tells us to square both legs of the triangle and sum it. this will be equal to the square of the hypotenuse.

the hypotenuse is the side "opposite" the 90 degree angle, which is x.

so we can write using pythagorean theorem,

simplifying:

to further simplify this radical, we need to use the property  

thus