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

Author Question: If the standard deviation of the lifetime of a vacuum cleaner is estimated to be 300 hours, how ... (Read 20 times)

eboni

  • Full Member
  • ***
  • Posts: 135
on: Mar 25, 2023

Question 1

If the population standard deviation of the lifetime of washing machines is estimated to be 900 hours, how large a sample must be taken in order to be 97% confident that the margin of error will not exceed 100 hours?



Question 2

If the standard deviation of the lifetime of a vacuum cleaner is estimated to be 300 hours, how large of a sample must be taken in order to be 97% confident that the margin of error will not exceed 40 hours?

Essentials of Statistics for Business and Economics ¦ Anderson, Sweeney, Williams, Camm, Cochran ¦ 7th Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by eboni on Mar 25, 2023

feiojef

  • Full Member
  • ***
  • Posts: 172
Reply #1 on: Mar 25, 2023
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 56% of students answer this correctly


eboni

  • Member
  • Posts: 135
Reply 2 on: Mar 25, 2023
YES! Correct, THANKS for helping me on my review

xoxo123

  • Member
  • Posts: 335
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

No drugs are available to relieve parathyroid disease. Parathyroid disease is caused by a parathyroid tumor, and it needs to be removed by surgery.

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?

HIV testing reach is still limited. An estimated 40% of people with HIV (more than 14 million) remain undiagnosed and do not know their infection status.

Did you know?

Women are 50% to 75% more likely than men to experience an adverse drug reaction.

Did you know?

The longest a person has survived after a heart transplant is 24 years.

In 1891 William Dean Howells championed the poetry of Emily Dickinson: “This poetry is as characteri In 1891 William Dean Howells championed the poetry of Emily Dickinson: “This poetry is as characteri
Psalter and Hours of Bonne of Luxembourg, Duchess of Normandy Psalter and Hours of Bonne of Luxembourg, Duchess of Normandy
Reinstall the valve cover being careful to not pinch a wire or vacuum hose between the cover and ... Reinstall the valve cover being careful to not pinch a wire or vacuum hose between the cover and ...
A vacuum-operated EGR valve. The vacuum to the EGR valve is computer controlled by the EGR valve ... A vacuum-operated EGR valve. The vacuum to the EGR valve is computer controlled by the EGR valve ...
In situ hybridization of a zebrafish embryo 48 hours after fertilization In situ hybridization of a zebrafish embryo 48 hours after fertilization
Estimated times of divergence of human and Neanderthal genomic Estimated times of divergence of human and Neanderthal genomic
Video: PET Scan Animation

For a complete list of videos, visit our video library