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

Author Question: An educational organization in California is interested in estimating the mean number of minutes per ... (Read 47 times)

Kthamas

  • Hero Member
  • *****
  • Posts: 546
on: Jun 24, 2018
An educational organization in California is interested in estimating the mean number of minutes per day that children between the age of 6 and 18 spend watching television per day.
 
  A previous study showed that the population standard deviation was 21.5 minutes. The organization selected a random sample of n = 200 children between the ages of 6 and 18 and recorded the number of minutes of TV that each person watched on a particular day. The mean time was 191.3 minutes. If the leaders of the organization wish to develop an interval estimate with 98 percent confidence, what critical value should be used?A) z = 1.645
  B) t = 2.38
  C) Approximately z = 2.33
  D) Can't be determined without knowing the margin of error.

Question 2

The sample mean is a parameter.
 
  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

frankwu0507

  • Sr. Member
  • ****
  • Posts: 322
Reply #1 on: Jun 24, 2018
Answer to Question 1

C

Answer to Question 2

FALSE


Kthamas

  • Member
  • Posts: 546
Reply 2 on: Jun 24, 2018
Thanks for the timely response, appreciate it

dantucker

  • Member
  • Posts: 346
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Approximately 25% of all reported medication errors result from some kind of name confusion.

Did you know?

There used to be a metric calendar, as well as metric clocks. The metric calendar, or "French Republican Calendar" divided the year into 12 months, but each month was divided into three 10-day weeks. Each day had 10 decimal hours. Each hour had 100 decimal minutes. Due to lack of popularity, the metric clocks and calendars were ended in 1795, three years after they had been first marketed.

Did you know?

Approximately 15–25% of recognized pregnancies end in miscarriage. However, many miscarriages often occur before a woman even knows she is pregnant.

Did you know?

If you could remove all of your skin, it would weigh up to 5 pounds.

Did you know?

Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.

(a) Zombies are a common theme in movies. However, (b) the number of zombie movies released each yea (a) Zombies are a common theme in movies. However, (b) the number of zombie movies released each yea
Three possible phylogenies for the australopithecines with Au. anamnesis as the stem ancestor and re Three possible phylogenies for the australopithecines with Au. anamnesis as the stem ancestor and re
Correlations on tests for a number of cognitive abilities are higher for monozygotic twin pairs (who ... Correlations on tests for a number of cognitive abilities are higher for monozygotic twin pairs (who ...
Organization of the Food and Drug Administration showing the seven centers that regulate human and ... Organization of the Food and Drug Administration showing the seven centers that regulate human and ...
The vehicle identification number (VIN) is visible through the base of the windshield and on a ... The vehicle identification number (VIN) is visible through the base of the windshield and on a ...
Computer Organization and Architecture Computer Organization and Architecture
Video: Natural Selection, Species Isolation and Real World Example

For a complete list of videos, visit our video library