Health, 14.02.2020 20:37 zoeybuch5

Scores on the SAT test have a mean of 1518 and a standard deviation of 325. Scores on the ACT test have a mean of 21.1 and a standard deviation of 4.8 explain

Answers: 2

Show answers

Answers

Answer from: michael3592

The complete question is:

Scores on the SAT test have a mean of 1518 and a standard deviation of 325. Scores on the ACT test have a mean of 21.1 and a standard deviation of 4.8. Which of the following choices is NOT true?

Options:

A) The ACT score of 17.0 is relatively better than the SAT score of 1490

B) An SAT score of 1490 has a z score of -0.09

C) The SAT score of 1490 is relatively better than ACT score of 17.0

D) An ACT score of 17.0 has a z score of -0.85

C) The ACT score of 17.0 is relatively better than the SAT score of 1490: NOT trueExplanation:

To compare scores on different scales or from different groups you need to use a normalized standardized statistic, like the z-score.

$z-score=(score-\mu)/\sigma$

Where $\mu$ is the mean of the sample, and $\sigma$ is the standard deviation.

1. Find the z-core for an ACT score of 17.0

$z-score=(score-\mu)/\sigma\\ \\ z-score=(17.0-21.1)/4.8\\ \\ z-score=-0.85$

That means that the ACT score of 17.0 is 0.85 standard deviations below the meqan.

2. Find the z-score for an SAT score of 1490

$z-score=(score-\mu)/\sigma\\ \\ z-score=(1490-1518)/325\\ \\ z-score=-0.086\approx -0.09$

That means that the SAT score of 1490 is 0.09 standard deviations from the mean.

3. Conlusion:

Since the z-score of the SAT score of 1490 is greater than the z-score of the ACT of 17.0, the SAT score of 1490 is relatively better than the aCT score of 17.0.

As for the answer choices:

A) The ACT score of 17.0 is relatively better than the SAT score of 1490: NOT true. ← correct answerB) An SAT score of 1490 has a z score of -0.09: TRUEC) The SAT score of 1490 is relatively better than ACT score of 17.0: TRUED) An ACT score of 17.0 has a z score of -0.85: TRUE.

Answer from: Quest

answer: b. complete secondary assessment (detailed physical exam).

after you finished the primary assessment, you must proceed with the assessment by performing a complete detailed physical examination.

this secondary assessment includes a focused on patient’s history, vital signs and a specific and rapid examination of the entire body especially on the injuries acquired from the motor vehicle accident and the patient’s medical complaint.

Answer from: Quest

Target heart rate is the answer

Another question on Health

Health, 22.06.2019 01:30

Why is it important that salads have crunch factors, color, and appropriate dressings? a. the salad will appeal to customers with varied tastes. b. it is easy to get away with poor quality ingredients. c. it is a good way to use up leftovers. d. it will give the customer something to enjoy in each bite. e. it use more products.

Answers: 2

Answer

Health, 22.06.2019 15:00

What is the result of procrastination? a.having less time to work on tasks b.being able to plan your tasks more effectively c.having more energy to work on tasks d.getting tasks done promptly

Answers: 1

Answer

Health, 23.06.2019 03:50

Fallacies are unsound arguments that seem to be logically and are persuasive because they usually appeal to our emotions and prejudices and often support conclusions that we want to believe are accurate. - true or false?

Answers: 1

Answer

Health, 23.06.2019 07:00

Sarah’s friend had been binge drinking and was intoxicated. sarah immediately called 9-1-1, and then sarah tried to keep her friend awake and her sit up.

Answers: 2

Answer

You know the right answer?

Scores on the SAT test have a mean of 1518 and a standard deviation of 325. Scores on the ACT test h...

Questions