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 124 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?

When taking monoamine oxidase inhibitors, people should avoid a variety of foods, which include alcoholic beverages, bean curd, broad (fava) bean pods, cheese, fish, ginseng, protein extracts, meat, sauerkraut, shrimp paste, soups, and yeast.

Did you know?

In inpatient settings, adverse drug events account for an estimated one in three of all hospital adverse events. They affect approximately 2 million hospital stays every year, and prolong hospital stays by between one and five days.

Did you know?

More than 34,000 trademarked medication names and more than 10,000 generic medication names are in use in the United States.

Did you know?

Stevens-Johnson syndrome and Toxic Epidermal Necrolysis syndrome are life-threatening reactions that can result in death. Complications include permanent blindness, dry-eye syndrome, lung damage, photophobia, asthma, chronic obstructive pulmonary disease, permanent loss of nail beds, scarring of mucous membranes, arthritis, and chronic fatigue syndrome. Many patients' pores scar shut, causing them to retain heat.

Did you know?

The term pharmacology is derived from the Greek words pharmakon("claim, medicine, poison, or remedy") and logos ("study").

Sample tiered drug formulary for antibiotics. Sample tiered drug formulary for antibiotics.
ROM exercises on a patient’s wrist: ulnar deviation. ROM exercises on a patient’s wrist: ulnar deviation.
Obtained from the deadly nightshade plant Atropa belladona, atropine remains a traditional drug ... Obtained from the deadly nightshade plant Atropa belladona, atropine remains a traditional drug ...
Single-dose drug administration. Pharmacokinetic values for this drug are as follows: onset of ... Single-dose drug administration. Pharmacokinetic values for this drug are as follows: onset of ...
Clinically Significant Drug-Drug Interactions in Dentistry Clinically Significant Drug-Drug Interactions in Dentistry
Assume z is a standard normal random variable. What is the value of z if the area to the right ... Assume z is a standard normal random variable. What is the value of z if the area to the right ...
Video: Gastroesophageal Reflux Disease (GERD)

For a complete list of videos, visit our video library