Question 8 Consider the hypothesis test Upper H 0 colon sigma Subscript 1 Superscript 2 Baseline equals sigma Subscript 2 Superscript 2 against Suppose that the sample sizes are n 1 equals 5 and n 2 equals 10 and that s Subscript 1 Superscript 2 Baseline equals 22.2 and Use (a) Test the hypothesis. Upper H 0 is rejected. (b) Find a 95% confidence interval on Round your answer to two decimal places (e. g. 98.76).

Liz had 140 pens and inna had 100 pens. after inna gave liz some pens, liz had 3 times as many pens as inna. how many pens did inna give liz?

Which statement explains how you could use coordinate geometry to prove the opposite sides of a quadrilateral are congruent? a. use the slope formula to prove the slopes of the opposite sides are the same. b. use the slope formula to prove the slopes of the opposite sides are opposite reciprocals. c. use the distance formula to prove the lengths of the opposite sides are the same. d. use the distance formula to prove the midpoints of the opposite sides are the same.

In terms of x, find an expression that represents the area of the shaded region. the outer square has side lengths of (x+5) and the inner square has side lengths of (x-2), as shown. area: a1 x + a2 square units submit