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

Author Question: A company claims that the standard deviation in their delivery times is less than 5 days. A sample ... (Read 56 times)

jayhills49

  • Hero Member
  • *****
  • Posts: 559
on: Jun 24, 2018
A company claims that the standard deviation in their delivery times is less than 5 days. A sample of 27 past customers was taken. The average delivery time in the sample was 14 days with a standard deviation of 4.5 days. At the 5 level of significance, test the company's claim. Use the critical value approach.

Question 2

Waiting line models describe the transient-period operating characteristics of a waiting line.
 a. True
  b. False
  Indicate whether the statement is true or false


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

dominiqueenicolee

  • Sr. Member
  • ****
  • Posts: 314
Reply #1 on: Jun 24, 2018
Answer to Question 1

H0: 2  25
Ha: 2 < 25
chi-square = 21.06 > 15.379; do not reject H0

Answer to Question 2

FALSE


jayhills49

  • Member
  • Posts: 559
Reply 2 on: Jun 24, 2018
Great answer, keep it coming :)

Liamb2179

  • Member
  • Posts: 365
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

The Centers for Disease Control and Prevention (CDC) was originally known as the Communicable Disease Center, which was formed to fight malaria. It was originally headquartered in Atlanta, Georgia, since the Southern states faced the worst threat from malaria.

Did you know?

The average person is easily confused by the terms pharmaceutics and pharmacology, thinking they are one and the same. Whereas pharmaceutics is the science of preparing and dispensing drugs (otherwise known as the science of pharmacy), pharmacology is the study of medications.

Did you know?

It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.

Did you know?

Pregnant women usually experience a heightened sense of smell beginning late in the first trimester. Some experts call this the body's way of protecting a pregnant woman from foods that are unsafe for the fetus.

Did you know?

The people with the highest levels of LDL are Mexican American males and non-Hispanic black females.

Deviation of Normal Posture Deviation of Normal Posture
The reflection nebula NGC 1999 is brilliantly illuminated by V380 Orionis (center), a variable star The reflection nebula NGC 1999 is brilliantly illuminated by V380 Orionis (center), a variable star
Richmond, Virginia, lies in ruins in April 1865 at the time of Lincoln’s visit—and a few days before Richmond, Virginia, lies in ruins in April 1865 at the time of Lincoln’s visit—and a few days before
A sample flow sheet. A sample flow sheet.
Standard Laboratory Lipid Profiles Standard Laboratory Lipid Profiles
A sample of carbon monoxide gas occupies 125 mL at 20.0 °C and 455 mm Hg. If the A sample of carbon monoxide gas occupies 125 mL at 20.0 °C and 455 mm Hg. If the
Video: Structure of a Ribosome

For a complete list of videos, visit our video library