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

Author Question: A report on spending by adults on recreation stated the following: At least 75 percent of the people ... (Read 102 times)

captainjonesify

  • Hero Member
  • *****
  • Posts: 543
A report on spending by adults on recreation stated the following: At least 75 percent of the people in the survey spend between 750 and 1,250 per year. The report also said that at least 88 percent spend between 625 and 1,375 per year.
 
  Given this information, which of the following is most apt to be true?A) The standard deviation is approximately 125.
  B) The distribution of spending on recreation can be assumed to be bell-shaped.
  C) The standard deviation is approximately 187.5.
  D) The standard deviation is approximately 250.

Question 2

In determining the required sample size in an application involving an estimate for the population mean, if the population standard deviation is known, there is no compelling reason to select a pilot sample.
 
  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

Andromeda18

  • Sr. Member
  • ****
  • Posts: 336
Answer to Question 1

A

Answer to Question 2

TRUE




captainjonesify

  • Member
  • Posts: 543
Reply 2 on: Jun 24, 2018
Thanks for the timely response, appreciate it


momolu

  • Member
  • Posts: 320
Reply 3 on: Yesterday
Gracias!

 

Did you know?

Illness; diuretics; laxative abuse; hot weather; exercise; sweating; caffeine; alcoholic beverages; starvation diets; inadequate carbohydrate consumption; and diets high in protein, salt, or fiber can cause people to become dehydrated.

Did you know?

Asthma cases in Americans are about 75% higher today than they were in 1980.

Did you know?

A good example of polar molecules can be understood when trying to make a cake. If water and oil are required, they will not mix together. If you put them into a measuring cup, the oil will rise to the top while the water remains on the bottom.

Did you know?

It is important to read food labels and choose foods with low cholesterol and saturated trans fat. You should limit saturated fat to no higher than 6% of daily calories.

Did you know?

The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.

For a complete list of videos, visit our video library