Many people believe that the average number of Facebook friends is 135. The population standard deviation is 38.9. A random sample of 35 high school students in a particular county revealed that the average number of Facebook friends was 145. At a = 0.01, is there sufficient evidence to conclude that the mean number of friends is greater than 135?

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
icon
Related questions
Topic Video
Question

need help on these, everything you need is in the screenshot

Many people believe that the average number of Facebook friends is 135. The population standard deviation is 38.9. A random
olo
sample of 35 high school students in a particular county revealed that the average number of Facebook friends was 145. At
a = 0.01, is there sufficient evidence to conclude that the mean number of friends is greater than 135?
Part: 0 / 5
Part 1 of 5
State the hypotheses and identify the claim with the correct hypothesis.
H.:
(Choose one) ▼
H,
(Choose one) ▼
This hypotheses test is a (Choose one)
test.
Transcribed Image Text:Many people believe that the average number of Facebook friends is 135. The population standard deviation is 38.9. A random olo sample of 35 high school students in a particular county revealed that the average number of Facebook friends was 145. At a = 0.01, is there sufficient evidence to conclude that the mean number of friends is greater than 135? Part: 0 / 5 Part 1 of 5 State the hypotheses and identify the claim with the correct hypothesis. H.: (Choose one) ▼ H, (Choose one) ▼ This hypotheses test is a (Choose one) test.
For the following conjecture, state the null and alternative hypotheses.
The average age of first-year medical school students is 27 years.
The null hypothesis is Ho:
The alternative hypothesis is H, :
Transcribed Image Text:For the following conjecture, state the null and alternative hypotheses. The average age of first-year medical school students is 27 years. The null hypothesis is Ho: The alternative hypothesis is H, :
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps

Blurred answer
Knowledge Booster
Research Design Formulation
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, probability and related others by exploring similar questions and additional content below.
Recommended textbooks for you
A First Course in Probability (10th Edition)
A First Course in Probability (10th Edition)
Probability
ISBN:
9780134753119
Author:
Sheldon Ross
Publisher:
PEARSON
A First Course in Probability
A First Course in Probability
Probability
ISBN:
9780321794772
Author:
Sheldon Ross
Publisher:
PEARSON