A group of students are asked to evaluate their teacher mid-quarter

Mathematics

1 answer:

Umnica [9.8K]3 years ago

7 0

Answer: perceived lack of anonymity

Step-by-step explanation:

The source of bias that occurs when a group of students are asked to evaluate their teacher mid-quarter is a perceived lack of anonymity.

Perceived lack of anonymity occurs when the responder is afraid that if he or she gives an honest answer, it can end up affecting them negatively.

In this case, the students may be afraid that giving an honest opinion on the teacher will affect them.

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Marysya12 [62]

Answer:

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3 years ago

An experiment will be conducted to test the effectiveness of a weight-loss supplement. Volunteers will be randomly assigned to t

DerKrebs [107]

Answer:

Option c. The distributions of weight loss of the two treatments are approximately normally distributed.

Step-by-step explanation:

To increase the confidence level, the results must be able to satisfy the following conditions:

The sample size is increased. This reduces the margin of the error in the sampling experiment.
Reduction of the variability. This means that the less the data varies, the more precise the data is.
Using the one-sided confidence level
Lowering the confidence level.

All these characteristics can only be satisfied by the normal distribution curve.

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3 years ago

There are many cylinders with radius 6 meters. Let h represent the height in meters and V represent the volume in cubic meters.

KiRa [710]

The equation that represents the volume of the cylinder is 36πhhh m³.

Explanation:

Formula: volume of a cylinder = πr²h

pi = π = 22/7

r = radius

6² πhhh

36πhhh m³

4 0

2 years ago

You are trying to recreate flubber because you are obsessed with that movie and you thought it was the coolest. you take 70% sli

german

Let $x$ be the amount (gal) of the 40% slime solution you end up using. You want to end up with 120 gal of the 50% solution, so that you would use $120-x$ gal of the 70% solution.

You want the final solution to consist of 50% slime, or 60 gal of slime. Each gal of the 40% solution contributes 0.4 gal of slime, while each gal of the 70% solution contributes 0.7 gal of slime. This means

$0.4x+0.7(120-x)=0.5\cdot120=60$