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

Author Question: In order to estimate the average daily down time, a manufacturer randomly samples 40 days of ... (Read 100 times)

rosent76

  • Hero Member
  • *****
  • Posts: 516
on: Jun 24, 2018
In order to estimate the average daily down time, a manufacturer randomly samples 40 days of production records and found a mean of 55.576 minutes and standard deviation of 77.9 minutes. An 80 confidence interval is:
 a. 55.675  1.28(12.32).
  b. 55.675  1.304(12.32).
  c. 55.675  1.28(77.9).
  d. 55.675  1.304(77.9).

Question 2

The t-distribution approaches the normal distribution as the:
 a. degrees of freedom increase.
  b. degrees of freedom decrease.
  c. sample size decreases.
  d. population size increases.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

sarahccccc

  • Sr. Member
  • ****
  • Posts: 318
Reply #1 on: Jun 24, 2018
Answer to Question 1

B

Answer to Question 2

A


rosent76

  • Member
  • Posts: 516
Reply 2 on: Jun 24, 2018
Excellent

mochi09

  • Member
  • Posts: 335
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.

Did you know?

Adults are resistant to the bacterium that causes Botulism. These bacteria thrive in honey – therefore, honey should never be given to infants since their immune systems are not yet resistant.

Did you know?

After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.

Did you know?

Although not all of the following muscle groups are commonly used, intramuscular injections may be given into the abdominals, biceps, calves, deltoids, gluteals, laterals, pectorals, quadriceps, trapezoids, and triceps.

Did you know?

All adverse reactions are commonly charted in red ink in the patient's record and usually are noted on the front of the chart. Failure to follow correct documentation procedures may result in malpractice lawsuits.

(a) Mean duration (days) and (b) average maximum depth (mm) of snow cover throughout northern latitu (a) Mean duration (days) and (b) average maximum depth (mm) of snow cover throughout northern latitu
Under what conditions can part-time employment in high school be a negative influence on school ... Under what conditions can part-time employment in high school be a negative influence on school ...
Average Global Temperatures Average Global Temperatures
Daily Alertness Activity (2 of 2) Daily Alertness Activity (2 of 2)
Hierarchical clusters in a microarray experiment using RNA samples from Saccharomyces cerevisiae Hierarchical clusters in a microarray experiment using RNA samples from Saccharomyces cerevisiae
Surtsey, a volcanic island, during the time of its formation. Surtsey, a volcanic island, during the time of its formation.
Video: Helper T cell receptors, activation, proliferation, differentiation & action

For a complete list of videos, visit our video library