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

Author Question: A large university is interested in learning about the average time it takes students to drive to ... (Read 56 times)

codyclark

  • Hero Member
  • *****
  • Posts: 538
on: Feb 14, 2020

Question 1

A random sample of n observations, selected from a normal population, is used to test the null hypothesis H0: σ2 = 155. Specify the appropriate rejection region.
Ha: σ2 > 155, n = 25, α = .10
◦ χ2 > 15.6587
◦ χ2 > 34.3816
◦ χ2 > 36.4151
◦ χ2 > 33.1963

Question 2

A large university is interested in learning about the average time it takes students to drive to campus. The university sampled 51 students and asked each to provide the amount of time they spent traveling to campus. The sample results found that the sample mean was 23.243 minutes and the sample standard deviation was 20.40 minutes. Find the rejection region for determining if the population standard deviation exceeds 20 minutes. Use α = 0.05.
◦ Reject H0 if χ2 > 71.4202
◦ Reject H0 if χ2 > 67.5048
◦ Reject H0 if z > 1.645
◦ Reject H0 if χ2 > 34.7642
Statistics ¦ McClave, Sincich, Tamarack ¦ 12th Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by codyclark on Feb 14, 2020

mcinincha279

  • Sr. Member
  • ****
  • Posts: 316
Reply #1 on: Feb 14, 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 25% of students answer this correctly


codyclark

  • Member
  • Posts: 538
Reply 2 on: Feb 14, 2020
Thanks for the timely response, appreciate it

diana chang

  • Member
  • Posts: 288
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

Methicillin-resistant Staphylococcus aureus or MRSA was discovered in 1961 in the United Kingdom. It if often referred to as a superbug. MRSA infections cause more deaths in the United States every year than AIDS.

Methicilli ...
Did you know?

The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.

Did you know?

The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."

Did you know?

The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.

Did you know?

Illicit drug use costs the United States approximately $181 billion every year.

Color enhanced X ray of large malignant tumor in the right lung. Color enhanced X ray of large malignant tumor in the right lung.
Localization of a Peptide The peptide is revealed by means of immunocytochemistry. The photomicrogra Localization of a Peptide The peptide is revealed by means of immunocytochemistry. The photomicrogra
Adenosine, Time of Day, and Hunger Adenosine, Time of Day, and Hunger
Median Annual Earnings of Full-Time Workers, by Gender, 1960–2010 Median Annual Earnings of Full-Time Workers, by Gender, 1960–2010
Gossip and ridicule increase the status insecurity of this time of life. Gossip and ridicule increase the status insecurity of this time of life.
Time-of-entry mapping Time-of-entry mapping
Video: Coaductile pathway, Timing of contraction signal & Conduction system and ECG

For a complete list of videos, visit our video library