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 58 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
:D TYSM

Animal_Goddess

  • Member
  • Posts: 339
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Critical care patients are twice as likely to receive the wrong medication. Of these errors, 20% are life-threatening, and 42% require additional life-sustaining treatments.

Did you know?

The Centers for Disease Control and Prevention has released reports detailing the deaths of infants (younger than 1 year of age) who died after being given cold and cough medications. This underscores the importance of educating parents that children younger than 2 years of age should never be given over-the-counter cold and cough medications without consulting their physicians.

Did you know?

The most dangerous mercury compound, dimethyl mercury, is so toxic that even a few microliters spilled on the skin can cause death. Mercury has been shown to accumulate in higher amounts in the following types of fish than other types: swordfish, shark, mackerel, tilefish, crab, and tuna.

Did you know?

Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.

Did you know?

There are 60,000 miles of blood vessels in every adult human.

Why Different Constellations Are Visible at Different Times of the Year Why Different Constellations Are Visible at Different Times of the Year
Generally, the total tax burden in the United States is much lower than that of other industrialize Generally, the total tax burden in the United States is much lower than that of other industrialize
Sample inventory order form. Sample inventory order form.
An orange has four times the fiber of six ounces of orange juice An orange has four times the fiber of six ounces of orange juice
A blade and assorted plates for a standard grinder A blade and assorted plates for a standard grinder
Jia's Fashions recently paid a $2 annual dividend. The company is projecting that its ... Jia's Fashions recently paid a $2 annual dividend. The company is projecting that its ...
Video: Secondary Active Transport

For a complete list of videos, visit our video library