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

Author Question: Fill in the blank. If both the sample standard deviation, s, and the population standard deviation, ... (Read 85 times)

sarasara

  • Hero Member
  • *****
  • Posts: 521
Fill in the blank. If both the sample standard deviation, s, and the population standard deviation, , are computed for the same data set, they will tend to be closer together if the data set is ___________.
 
  Fill in the blank(s) with correct word

Question 2

A researcher wished to assess the importance of exercise in weight-loss programs. 412 people, all considered to be at least 20 pounds overweight, volunteered to participate in a study. The participants were randomly assigned to one of two groups.
 
  Over a two-month period, the first group followed a particular diet but were instructed to perform no exercise other than walking. The second group followed the same diet but also performed aerobic exercise for one hour each day. At the end of the two months, the weight loss of each participant was recorded. The average weight loss was calculated for each group and it was found that the average weight loss for the second group was significantly greater than the average weight loss for the first group.
  A) Designed experiment B) Observational study



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

aprice35067

  • Sr. Member
  • ****
  • Posts: 337
Answer to Question 1

large

Answer to Question 2

A




sarasara

  • Member
  • Posts: 521
Reply 2 on: Jul 25, 2018
Great answer, keep it coming :)


komodo7

  • Member
  • Posts: 322
Reply 3 on: Yesterday
Gracias!

 

Did you know?

About 600,000 particles of skin are shed every hour by each human. If you live to age 70 years, you have shed 105 pounds of dead skin.

Did you know?

Your heart beats over 36 million times a year.

Did you know?

The U.S. Preventive Services Task Force recommends that all women age 65 years of age or older should be screened with bone densitometry.

Did you know?

The term pharmacology is derived from the Greek words pharmakon("claim, medicine, poison, or remedy") and logos ("study").

Did you know?

Recent studies have shown that the number of medication errors increases in relation to the number of orders that are verified per pharmacist, per work shift.

For a complete list of videos, visit our video library