The managers of a large company wished to know the percentage of employees who feel "extremely satisfied" to work there. The company has roughly 31,000 employees. Three scenarios are given in parts a through c below. For each scenario, determine the sampling method used by the managers.

The managers split the company into divisions, with each division containing employees that have similar jobs. Within each division, they select a SRS of employees to contact. Choose the correct sampling method below.

A. The managers used a cluster sample
B. The managers used a systematic sample.
C. The managers used a stratified sample
D. The managers used a multistage sample.
E. The managers used a simple random sample

C. The managers used a stratified sample

Step-by-step explanation:

The managers divided the company into groups, or strata, with similar characteristics and then take a simple random sample within each group. This process is a clear application of the stratified sampling method since all groups were considered and then individually sampled (unlike in cluster sampling).

Therefore, the answer is C. The managers used a stratified sample

2.

according to newton’s cannonball model, what happens if the cannonball's velocity is enough to overpower the pull of earth’s gravitystep-by-step explanation:

hello from mrbilldoesmath!

answer:   x (x+6)^2, choice b

discussion:

factor x out of the equation:

x^3 + 12x^2 + 36x = x (x^2 + 12x + 36).

note that 6+6 = 12 and 6*6 = 36 so the above factors into:

x (x+6)^2

which is choice b

you,

mrb