« previous next »

Author Question: We intend to estimate the average driving time of a group of commuters. From a previous study, we ... (Read 31 times)

mpobi80

  • Hero Member
  • *****
  • Posts: 519
on: Jul 24, 2018
We intend to estimate the average driving time of a group of commuters. From a previous study, we believe that the average time is 42 minutes with a standard deviation of 7 minutes.
 
  We want our 90 percent confidence interval to have a margin of error of no more than plus or minus 4 minutes. What is the smallest sample size that we should consider?
  A) 2 B) 9 C) 34 D) 3

Question 2

Consider a completely randomized design with five treatments. How many pairwise comparisons of treatments are made in a Bonferroni analysis?
 
  A) 5 B) 20 C) 10 D) 5 = 120


succesfull

  • Sr. Member
  • ****
  • Posts: 339
Reply #1 on: Jul 24, 2018
Answer to Question 1

B

Answer to Question 2

C


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

About 3% of all pregnant women will give birth to twins, which is an increase in rate of nearly 60% since the early 1980s.

Did you know?

In 2006, a generic antinausea drug named ondansetron was approved. It is used to stop nausea and vomiting associated with surgery, chemotherapy, and radiation therapy.

Did you know?

The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.

Did you know?

According to animal studies, the typical American diet is damaging to the liver and may result in allergies, low energy, digestive problems, and a lack of ability to detoxify harmful substances.

Did you know?

Fatal fungal infections may be able to resist newer antifungal drugs. Globally, fungal infections are often fatal due to the lack of access to multiple antifungals, which may be required to be utilized in combination. Single antifungals may not be enough to stop a fungal infection from causing the death of a patient.

The experiment performed by Jacob, Monod, and Pardee to study a lacI constitutive mutant The experiment performed by Jacob, Monod, and Pardee to study a lacI constitutive mutant
A Recently Discovered Member of the Local Group A Recently Discovered Member of the Local Group
The geomagnetic polarity time scale shows how Earth’s magnetic pole has changed through geologic tim The geomagnetic polarity time scale shows how Earth’s magnetic pole has changed through geologic tim
Average Hourly Earnings of U.S. Workers in Current and Constant Dollars Average Hourly Earnings of U.S. Workers in Current and Constant Dollars
Results from Kliegl's study show that older adults can learn complex information-processing Results from Kliegl's study show that older adults can learn complex information-processing
After elections were held, it was desired to estimate the proportion of voters who regretted ... After elections were held, it was desired to estimate the proportion of voters who regretted ...
Video: Glucose Evaluation Procedure

For a complete list of videos, visit our video library