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

Author Question: A machine dispenses a liquid drug into bottles in such a way that the standard deviation of the ... (Read 83 times)

Caiter2013

  • Hero Member
  • *****
  • Posts: 607
on: Aug 1, 2018
A machine dispenses a liquid drug into bottles in such a way that the standard deviation of the contents is 81 milliliters.
 
  A new machine is tested on a sample of 24 containers and the standard deviation for this sample group is found to be 26 milliliters. At the 0.05 level of significance, test the claim that the amounts dispensed by the new machine have a smaller standard deviation.

Question 2

The library is to be given 5 books as a gift. The books will be selected from a list of 19 titles. If each book selected must have a different title, how many possible selections are there?
 
  A) 1.216451004e+17 B) 11,628 C) 1.01370917e+15 D) 1,395,360


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

chloejackso

  • Sr. Member
  • ****
  • Posts: 316
Reply #1 on: Aug 1, 2018
Answer to Question 1

Test statistic: X2 = 2.370. Critical value: X2 = 13.091. Reject the null hypothesis. There is sufficient evidence to support the claim that the new machine produces a lower standard deviation.

Answer to Question 2

B


Caiter2013

  • Hero Member
  • *****
  • Posts: 607
Reply #2 on: Aug 1, 2018
Both answers were spot on, thank you once again


chloejackso

  • Sr. Member
  • ****
  • Posts: 316
Reply #3 on: Aug 1, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

Glaucoma is a leading cause of blindness. As of yet, there is no cure. Everyone is at risk, and there may be no warning signs. It is six to eight times more common in African Americans than in whites. The best and most effective way to detect glaucoma is to receive a dilated eye examination.

Did you know?

Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.

Did you know?

Certain topical medications such as clotrimazole and betamethasone are not approved for use in children younger than 12 years of age. They must be used very cautiously, as directed by a doctor, to treat any child. Children have a much greater response to topical steroid medications.

Did you know?

Your skin wrinkles if you stay in the bathtub a long time because the outermost layer of skin (which consists of dead keratin) swells when it absorbs water. It is tightly attached to the skin below it, so it compensates for the increased area by wrinkling. This happens to the hands and feet because they have the thickest layer of dead keratin cells.

Did you know?

The effects of organophosphate poisoning are referred to by using the abbreviations “SLUD” or “SLUDGE,” It stands for: salivation, lacrimation, urination, defecation, GI upset, and emesis.

) IV bolus administration. (b) the drug is administered through the port using a needleless syring ) IV bolus administration. (b) the drug is administered through the port using a needleless syring
Documented Herb–Drug Interactions Documented Herb–Drug Interactions
Comparison of Household, Apothecary, and Metric Liquid Measurements Comparison of Household, Apothecary, and Metric Liquid Measurements
ROM exercises on a patient’s wrist: ulnar deviation. ROM exercises on a patient’s wrist: ulnar deviation.
The Frequency Distribution Curve of a Drug The Frequency Distribution Curve of a Drug
The Plunger and Barrel of a Standard Syringe The Plunger and Barrel of a Standard Syringe
Video: Ventilation - phases and driving forces

For a complete list of videos, visit our video library