Ebram Kerolos
Computer Science 101
Homework 6#2
HWCh6Part2
R6.4, 6.10, 6.15, 6.18 on pp. 294-296
R6.4)
a)
123456789
b)
24689
c)
10 9 8 7 6 5 4 3 2
d)
0, 1, 2, 3, 4, 5, 6, 7, 8, 9
e)
2
f)
2468
R6.10
a)
goes from 1 to 10 one by one, so 10 times.
b)
i goes f
Title
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HEADING
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Statistics
Section 10.3 t Test for a Mean
Assignment
Find the critical value (or values) for the t test for each.
1. n = 10,
, right-tailed
2. n = 18,
, two-tailed
3. n = 6,
, left-tailed
4. n = 9,
, right-tailed
5. n = 15,
, two-tailed
Find the P-value i
Hypothesis Testing Examples:
(1) The average production of peanuts in the state of Virginia is 3000 pounds per acre. A
new plant food has been developed and is tested on 60 individual plots of land. The mean
yield with the new plant food is 3120 pounds of
Chapter 6 Review Exercise Solutions
R6.1
a)
int i = 0;
while (i * i < n)
cfw_
System.out.println(i * i);
i+;
b)
int i = 10;
while (i < n)
cfw_
System.out.println(i);
i = i + 10;
c)
int i = 1;
while (i < n)
cfw_
System.out.println(i);
i = i * 2;
R6.2
a)
Practice for Ch. 7 and Ch. 8, MAT 120
(1) General questions
(a) In a statistics experiment, what stats are denoted by X and . Are these always
exactly the same?
(b) In constructing a confidence interval for the mean, what makes us decide whether to
use th
Hypothesis Testing Summary
Problem:
a) State null and alternative hypotheses:
Ho :
H1 :
b) Type of test:
c) Hypothesis test results:
Statistics (t, F or 2 )
p
d) Decision: Reject (fail to) null hypothesis ( =
e) Conclusion
df (if applicable)
)
Hypothesis
1
On Line Assignments/Projects Report
NJCU Mathematics Department / Statistics
Fall 2015, Sections 1484, 1487
Name
Ebram Kerolos
GRADE
Class
Section
1484 /
1487
Date
11/13/15
Lesson
4
COMMENTS
PLEASE SHOWWORK AND ANSWERS BELOW (Answers only: 40%)
-Page 37
1
On Line Assignments/Projects Report
NJCU Mathematics Department / Statistics
Fall 2015, Sections 1484, 1487
Nam
e
Ebram Kerolos
GRADE
Class
Section
1484 /
1487
Dat
e
11/13/15
Lesson
4
COMMENTS
PLEASE SHOWWORK AND ANSWERS BELOW (Answers only: 40%)
-Page
Page 433 # 11
18) A.
State the hypotheses and identify the claim
For the sample, n=8, mean=8.25, s=5.06.
H0: m=9.2 (claim)
Ha: m9.2
B.
Find the critical value(s)
The sample is small (n=8), so t-statistic should be used; n=8, so critical value for 8-1=7 de
Wedding Calendar
Checklist
The following checklist is designed with the (ideal) timetable of twelve
months. If youre planning your wedding on a shorter schedule, just start at
the beginning of the list and try to catch up as quickly as possible. Use the
b