- Submitted By: Dianna-Cadet
- Date Submitted: 01/26/2016 2:25 PM
- Category: History Other
- Words: 710
- Page: 3

Statistics

Group 9

Dianna Cadet

Chris Coleman

Heidi Schroeter

Chris Coleman

Confidence Intervals

Semesters Completed

In this survey of 28 P.B.S.C students, an inference was made from the

population mean of how many hours a student worked weekly. The

results are as follows:

Mean: 3.25

Standard deviation: 2.33

I can say with 95% confidence that the population mean of semesters

completed falls between the range of:

2.346521 < mean 6.45(claim)

6.45

Sample mean falls within the blue

highlighted area on the graph. Number in the center of the graph represents the

population mean.

Null is the standard mean of the population.

Claim is the projection testing the standard mean.

Significance level: 0.0

M: 6.45

I can say with 90% confidence that the sample mean falls

N:

8

in between:

0.8640112 < µ < 3.395989

x:

2.13

s.d.: 1.89

Results: Fail to Reject the Null Hypothesis

Sample does not provide enough evidence to support the claim

Circle Graph

Gender of Students

Male

50%

Female

50%

Descriptive statistics is the term

given to the analysis of data that

helps describe, show or

summarize data in a meaningful

way such that, for example,

patterns might emerge from the

Christopher Coleman

•The 70% rule -Does not

apply because it is not

in the interest to of

Palm Beach State

College.

• 50% of students were

Male.

•50% of students were

Female.

•This data is descriptive

and is a fact.

•It is qualitative data

and is categorical.

Bar Graph

Christopher Coleman

Students with Financial Aid

• Qualitative Data – data

containing no numbers, this is

typical for bar graphs.

No

7

• It is descriptive data,

because it contains facts.

Yes

21

• 70% rule does not apply.

Chris Coleman

Measures of Central Tendency

The results reflect the conclusion of This data is quantitativ

(contains numbers).

a sample of 28 students found at the

P.B.S.C. library.

The data is descriptive...