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 37 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
Thanks for the timely response, appreciate it

matt95

  • Member
  • Posts: 317
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.

Did you know?

According to research, pregnant women tend to eat more if carrying a baby boy. Male fetuses may secrete a chemical that stimulates their mothers to step up her energy intake.

Did you know?

Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.

Did you know?

In 1864, the first barbiturate (barbituric acid) was synthesized.

Did you know?

Medication errors are more common among seriously ill patients than with those with minor conditions.

How to solve a linear algebraic bank interest problem with two unknowns How to solve a linear algebraic bank interest problem with two unknowns
How to solve first degree equations (Part 2) How to solve first degree equations (Part 2)
Red blood cells with normal hemoglobin, like the three similar ones, are smooth and round Red blood cells with normal hemoglobin, like the three similar ones, are smooth and round
Assume z is a standard normal random variable. What is the value of z if the area to the right ... Assume z is a standard normal random variable. What is the value of z if the area to the right ...
The value of to the nearest hundredth of a radian, is? The value of to the nearest hundredth of a radian, is?
Sample lod score curves Sample lod score curves
Video: Role of the respiratory system - effect of altered ventilation rates

For a complete list of videos, visit our video library