What is Statistics?

User Generated

ocrggvg565

Mathematics

Description

I need help with my math discussions homework. Please do these exercises.

Exercise 8.1.95

Among various ethnic groups, the standard deviation of heights is known to be approximately three inches. We wish to construct a 95% confidence interval for the mean height of male Swedes. Forty-eight male Swedes are surveyed. The sample mean is 71 inches. The sample standard deviation is 2.8 inches. Calculate the error bound. What will happen to the level of confidence obtained if 1,000 male Swedes are surveyed instead of 48? Why?

Exercise 8.2.104 (using t-distribution)

In six packages of “The Flintstones® Real Fruit Snacks” there were five Bam-Bam snack pieces. The total number of snack pieces in the six bags was 68. We wish to calculate a 96% confidence interval for the population proportion of Bam-Bam snack pieces. Construct a 96% confidence interval for the population proportion of Bam-Bam snack pieces per bag and calculate the error bound.

Do you think that six packages of fruit snacks yield enough data to give accurate results? Why or why not?




User generated content is uploaded by users for the purposes of learning and should be used following Studypool's honor code & terms of service.

Explanation & Answer

Hey, this is the final doc.

Running head: STATISTICS

1

Statistics
Name:
Professors name:
Course:
Date:

STATISTICS

2

Statistics
Exercise 8.1
The sample mean height of the 48 swedes male is x-bar =71 inches
X̄ = 71
σ=3
n = 48
So, X is the height in inches of Male Swedes. X̄ is the average height of the M...


Anonymous
Excellent! Definitely coming back for more study materials.

Studypool
4.7
Trustpilot
4.5
Sitejabber
4.4

Related Tags