This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Solve the problem. Round the standard score to the nearest tenth before using the z-score tables. ... (Read 54 times)

hubes95

  • Hero Member
  • *****
  • Posts: 561
on: Jan 18, 2020

Question 1

Solve the problem. Round the standard score to the nearest tenth before using the z-score tables. Express your answer as a percent rounded to hundredths of a percent.

A final exam in Math 160 has a mean of 73 with standard deviation 8.16.  Assume that a random sample of 24 students is selected and the test score of the sample is computed.  Assuming the scores are normally distributed, what percentage of sample means are greater than 78?
◦ 99.74%
◦ 0.26%
◦ 0.13%
◦ 99.87%

Question 2

Solve the problem. Round the standard score to the nearest tenth before using the z-score tables. Express your answer as a percent rounded to hundredths of a percent.

A final exam in Math 160 has a mean of 73 with standard deviation 9.8.  Assume that a random sample of 24 students is selected and the test score of the sample is computed.  Assuming the scores are normally distributed, what percentage of sample means are between 72 and 74?
◦ 69.15%
◦ 38.3%
◦ 61.7%
◦ 30.85%
Statistical Reasoning for Everyday Life ¦ Bennett, Briggs, Triola ¦ 5th Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by hubes95 on Jan 18, 2020

LVPMS

  • Sr. Member
  • ****
  • Posts: 323
Reply #1 on: Jan 18, 2020
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
Answer Preview
Only 50% of students answer this correctly


hubes95

  • Member
  • Posts: 561
Reply 2 on: Jan 18, 2020
Great answer, keep it coming :)

steff9894

  • Member
  • Posts: 337
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

In women, pharmacodynamic differences include increased sensitivity to (and increased effectiveness of) beta-blockers, opioids, selective serotonin reuptake inhibitors, and typical antipsychotics.

Did you know?

Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.

Did you know?

The senior population grows every year. Seniors older than 65 years of age now comprise more than 13% of the total population. However, women outlive men. In the 85-and-over age group, there are only 45 men to every 100 women.

Did you know?

Disorders that may affect pharmacodynamics include genetic mutations, malnutrition, thyrotoxicosis, myasthenia gravis, Parkinson's disease, and certain forms of insulin-resistant diabetes mellitus.

Did you know?

Many medications that are used to treat infertility are injected subcutaneously. This is easy to do using the anterior abdomen as the site of injection but avoiding the area directly around the belly button.

How to solve exponential equations without logarithms (Part 1) How to solve exponential equations without logarithms (Part 1)
Solve the following equations: Solve the following equations:
Please solve this quadractic question Please solve this quadractic question
Algebraically solve the equation sec^2 θ-2=0 such that -π ≤ θ ≤ π Algebraically solve the equation sec^2 θ-2=0 such that -π ≤ θ ≤ π
Problem Problem
Solve the system to find x and y Solve the system to find x and y
Video: Fractures Animation

For a complete list of videos, visit our video library