exam Maths Puzzle Numerical Ability

1) Determine which two equations represent parallel line.
(a) y=-7x + 4 (b) y=7x + 4
(c) y= 1/7 x + 4 (d) y=-7x + 7 chose from (A) a and b

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#80) The median age at first marriage for females increased from 24.5 in 1995 to 25.1 years in 2000. Let 1995 be year 5 and let 2000 be year 10.

a.) Find the equation of the li The following hypotheses is an example of
H0:π ≤.40
Ha:π > .40

a a one tail test for means
b. a two tail test for means
c. A one tail test for proportions
d. a two tail for proportions
e. None of the above