This topic contains a solution. Click here to go to the answer

Author Question: It is decided that tomorrow a sample of 20 bricks will be taken. Without doing the calculations, ... (Read 46 times)

xclash

  • Hero Member
  • *****
  • Posts: 681
It is decided that tomorrow a sample of 20 bricks will be taken.
 
  Without doing the calculations, explain whether a correctly calculated 95 confidence interval for the mean weight of tomorrow's output would be wider than, narrower than, or the same width as that of a 99 confidence interval for the mean weight of all bricks produced this day.

Question 2

In a goodness-of-fit-test, suppose that the value of the test statistic is 13.08 and degrees of freedom = 6. At the 5 significance level, the null hypothesis is:
 
  A) rejected, and p-value for the test is smaller than 0.05.
  B) not rejected, and p-value for the test is greater than 0.05.
  C) rejected, and p-value for the test is greater than 0.05.
  D) not rejected, and p-value for the test is smaller than 0.05.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

leeeep

  • Sr. Member
  • ****
  • Posts: 315
Answer to Question 1

A correctly calculated 95 confidence interval for the population mean would be narrower than that of a 99 confidence interval for the mean weight of all bricks produced this day due to the smaller standard error.

Answer to Question 2

A




xclash

  • Member
  • Posts: 681
Reply 2 on: Jun 24, 2018
:D TYSM


peter

  • Member
  • Posts: 330
Reply 3 on: Yesterday
Excellent

 

Did you know?

Although not all of the following muscle groups are commonly used, intramuscular injections may be given into the abdominals, biceps, calves, deltoids, gluteals, laterals, pectorals, quadriceps, trapezoids, and triceps.

Did you know?

The types of cancer that alpha interferons are used to treat include hairy cell leukemia, melanoma, follicular non-Hodgkin's lymphoma, and AIDS-related Kaposi's sarcoma.

Did you know?

Intradermal injections are somewhat difficult to correctly administer because the skin layers are so thin that it is easy to accidentally punch through to the deeper subcutaneous layer.

Did you know?

Approximately one in three babies in the United States is now delivered by cesarean section. The number of cesarean sections in the United States has risen 46% since 1996.

Did you know?

Before a vaccine is licensed in the USA, the Food and Drug Administration (FDA) reviews it for safety and effectiveness. The CDC then reviews all studies again, as well as the American Academy of Pediatrics and the American Academy of Family Physicians. Every lot of vaccine is tested before administration to the public, and the FDA regularly inspects vaccine manufacturers' facilities.

For a complete list of videos, visit our video library