« previous next »

Author Question: The shift supervisor at a local manufacturing plant collected data on the number of defects coming ... (Read 94 times)

jwb375

  • Hero Member
  • *****
  • Posts: 540
on: Jun 24, 2018
The shift supervisor at a local manufacturing plant collected data on the number of defects coming off an assembly line over the past eight weeks (40 work days). She summarized the data in the following frequency table.
 
   of Errors 0 1 2 3 4 5
   of Weeks 1 4 7 16 10 2
 
  What is the weighted average number of errors per night?

Question 2

What is the width of the interval?
 
  A) 4.86
  B) 2.56
  C) 3.24
  D) 6.48


ally

  • Sr. Member
  • ****
  • Posts: 331
Reply #1 on: Jun 24, 2018
Answer to Question 1

Weighted mean = 2.9

Answer to Question 2

C


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

The immune system needs 9.5 hours of sleep in total darkness to recharge completely.

Did you know?

Most fungi that pathogenically affect humans live in soil. If a person is not healthy, has an open wound, or is immunocompromised, a fungal infection can be very aggressive.

Did you know?

There are actually 60 minerals, 16 vitamins, 12 essential amino acids, and three essential fatty acids that your body needs every day.

Did you know?

Alzheimer's disease affects only about 10% of people older than 65 years of age. Most forms of decreased mental function and dementia are caused by disuse (letting the mind get lazy).

Did you know?

Most women experience menopause in their 50s. However, in 1994, an Italian woman gave birth to a baby boy when she was 61 years old.

Maternal inheritance in the four-o'clock plant. Maternal inheritance in the four-o'clock plant.
Cells Plant Cells Plant
a) Shift your weight at the end of your reach. b) Avoid overreaching. a) Shift your weight at the end of your reach. b) Avoid overreaching.
Data for Calculating Productivity Growth in Erewhon Data for Calculating Productivity Growth in Erewhon
Doty's data show a very rapid drop in late adulthood in the ability to identify smells Doty's data show a very rapid drop in late adulthood in the ability to identify smells
Video: Photosynthesis overview Animation

For a complete list of videos, visit our video library