Cadmium, a heavy? metal, is toxic to animals.? Mushrooms, however, are able to absorb and accumulate cadmium at high concentrations. Some governments have a safety limit for cadmium in dry vegetables at 0.8 parts per million? (ppm). A hypothesis test is to be performed to decide whether the mean cadmium level in a certain mushroom is greater than the? government's recommended limit. Complete parts? (a) through? (c) below.a. Determine the null hypothesis. ?(Type an integer or a decimal. Do not? round.)b. Determine the alternative hypothesis. ?(Type an integer or a decimal. Do not? round.)c. Classify the hypothesis test as two? tailed, left? tailed, or right tailed.The hypothesis test is left tailed or right tailed or two tailed

Russell is correct.

Step-by-step explanation:

It is given that Quadrilateral PQRS is located at P (0, 1), Q (3, 2), R (4, 0), and S (1, −1).

Distance formula:

Slope formula:

Using distance and slope formula find the length and slope of each side.

Segment PQ : P(0, 1) and Q(3, 2).

Segment SR : S(1, −1) and R(4, 0).

Segment PS : P(0, 1) and S (1, −1)

Segment QR : Q(3, 2) and R(4, 0)

Slope of parallel lines are same.

Segments PQ and SR are both congruent and parallel, and segments PS and QR are both congruent and parallel.

PQRS is a parallelogram because opposite sides are both congruent and parallel.

Product of slopes of perpendicular lines is -1.

Product of slope of two adjacent sides is

Therefore adjacent sides are not perpendicular. It means the PQRS is not a rectangle.

Therefore, Russell is correct.