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

Author Question: The principal at Riverside High School would like to estimate the mean length of time each day that ... (Read 64 times)

sarasara

  • Hero Member
  • *****
  • Posts: 521
on: Jul 24, 2018
The principal at Riverside High School would like to estimate the mean length of time each day that it takes all the buses to arrive and unload the students.
 
  How large a sample is needed if the principal would like to assert with 90 confidence that the sample mean is off by, at most, 7 minutes. Assume that s = 14 minutes based on previous studies. A) 11 B) 10 C) 12 D) 13

Question 2

Given events C and D with probabilities P(C) = 0.3, P(D) = 0.2, and P(C and D) = 0.1, are C and D independent?
 
  A) no B) yes C) cannot be determined


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

stillxalice

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

A

Answer to Question 2

A


sarasara

  • Member
  • Posts: 521
Reply 2 on: Jul 24, 2018
Great answer, keep it coming :)

Liddy

  • Member
  • Posts: 342
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

Drugs are in development that may cure asthma and hay fever once and for all. They target leukotrienes, which are known to cause tightening of the air passages in the lungs and increase mucus productions in nasal passages.

Did you know?

In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.

Did you know?

Never take aspirin without food because it is likely to irritate your stomach. Never give aspirin to children under age 12. Overdoses of aspirin have the potential to cause deafness.

Did you know?

The most common childhood diseases include croup, chickenpox, ear infections, flu, pneumonia, ringworm, respiratory syncytial virus, scabies, head lice, and asthma.

Did you know?

Hip fractures are the most serious consequences of osteoporosis. The incidence of hip fractures increases with each decade among patients in their 60s to patients in their 90s for both women and men of all populations. Men and women older than 80 years of age show the highest incidence of hip fractures.

The Principal Internal Structures of a Multipolar Neuron The Principal Internal Structures of a Multipolar Neuron
A warning label on a Honda hybrid warns that a person can be killed due to the high-voltage ... A warning label on a Honda hybrid warns that a person can be killed due to the high-voltage ...
A downward-sloping spark line usually indicates high secondary ignition system resistance or an ... A downward-sloping spark line usually indicates high secondary ignition system resistance or an ...
Ten Leading Causes of Death in High-Income Countries, 2008 Ten Leading Causes of Death in High-Income Countries, 2008
Kids holding hands in school Kids holding hands in school
Time-of-entry mapping Time-of-entry mapping
Video: Phases of an Action Potential - Resting Potential, Threshold, Rising, Falling, & Recovery Phases

For a complete list of videos, visit our video library