BASIC PRACTICE OF STATISTICS+LAUNCHPAD
8th Edition
ISBN: 9781319053093
Author: Moore
Publisher: MAC HIGHER
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Chapter 29.3, Problem 7AYK
a.
To determine
To identify: The estimated regression model for predicting the nestling mass using nest humidity and exposure to fleas..
b.
To determine
To suggest: Whether nestling mass was higher as the eggs are exposed to fleas by using the regression models obtained in part (a).
.
c.
To determine
To identify: The standard error value for the given regression model.
To interpret: The value of standard error.
.
d.
To determine
To identify: The R-square value for the given multiple regression model.
To interpret: The value of R-square.
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Microsoft Excel snapshot for random sampling: Also note the formula used for the last
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02
x✓ fx =INDEX(5852:58551, RANK(C2, $C$2:$C$51))
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ALABAMA
Rand No.
0.925957526
3
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ALASKA
0.372999976
4
3
ARIZONA
0.941323044
5
4 ARKANSAS
0.071266381
Random Sample
CALIFORNIA
NORTH CAROLINA
ARKANSAS
WASHINGTON
G7
Microsoft Excel snapshot for systematic sampling:
xfx INDEX(SD52:50551, F7)
A
B
E
F
G
1
No.
States
Rand No. Random Sample
population
50
2
1 ALABAMA
0.5296685 NEW HAMPSHIRE
sample
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2 ALASKA
0.4493186 OKLAHOMA
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3 ARIZONA
0.707914 KANSAS
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4 ARKANSAS 0.4831379 NORTH DAKOTA
6
5 CALIFORNIA 0.7277162 INDIANA
Random Sample
Sample Name
7
6 COLORADO 0.5865002 MISSISSIPPI
8
7:ONNECTICU 0.7640596 ILLINOIS
9
8 DELAWARE 0.5783029 MISSOURI
525
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INDIANA
MARYLAND
COLORADO
Suppose the Internal Revenue Service reported that the mean tax refund for the year 2022 was $3401. Assume the standard deviation is $82.5 and that the amounts refunded follow a normal probability distribution. Solve the following three parts? (For the answer to question 14, 15, and 16, start with making a bell curve. Identify on the bell curve where is mean, X, and area(s) to be determined.
1.What percent of the refunds are more than $3,500?
2. What percent of the refunds are more than $3500 but less than $3579?
3. What percent of the refunds are more than $3325 but less than $3579?
A normal distribution has a mean of 50 and a standard deviation of 4. Solve the following three parts?
1. Compute the probability of a value between 44.0 and 55.0.
(The question requires finding probability value between 44 and 55. Solve it in 3 steps.
In the first step, use the above formula and x = 44, calculate probability value.
In the second step repeat the first step with the only difference that x=55.
In the third step, subtract the answer of the first part from the answer of the second part.)
2. Compute the probability of a value greater than 55.0.
Use the same formula, x=55 and subtract the answer from 1.
3. Compute the probability of a value between 52.0 and 55.0.
(The question requires finding probability value between 52 and 55. Solve it in 3 steps.
In the first step, use the above formula and x = 52, calculate probability value.
In the second step repeat the first step with the only difference that x=55.
In the third step, subtract the answer of the first part from the…
Chapter 29 Solutions
BASIC PRACTICE OF STATISTICS+LAUNCHPAD
Ch. 29.1 - Prob. 1AYKCh. 29.1 - Prob. 2AYKCh. 29.2 - Prob. 3AYKCh. 29.2 - Prob. 4AYKCh. 29.2 - Prob. 5AYKCh. 29.3 - Prob. 6AYKCh. 29.3 - Prob. 7AYKCh. 29.4 - Prob. 8AYKCh. 29.4 - Prob. 9AYKCh. 29.6 - Prob. 11AYK
Ch. 29.6 - Prob. 13AYKCh. 29.6 - Prob. 15AYKCh. 29.6 - Prob. 17AYKCh. 29.7 - Prob. 18AYKCh. 29.7 - Prob. 19AYKCh. 29.7 - Prob. 20AYKCh. 29.8 - Prob. 22AYKCh. 29.8 - Prob. 23AYKCh. 29.9 - Prob. 24AYKCh. 29.9 - Prob. 25AYKCh. 29.9 - Prob. 26AYKCh. 29.10 - Prob. 27AYKCh. 29.10 - Prob. 28AYKCh. 29.11 - Prob. 30AYKCh. 29.11 - Prob. 31AYKCh. 29 - Prob. 29.32CYSCh. 29 - Prob. 29.33CYSCh. 29 - Prob. 29.34CYSCh. 29 - Prob. 29.35CYSCh. 29 - Prob. 29.36CYSCh. 29 - Prob. 29.37CYSCh. 29 - Prob. 29.38CYSCh. 29 - Prob. 29.39CYSCh. 29 - Prob. 29.40CYSCh. 29 - Prob. 29.41CYSCh. 29 - Prob. 29.46ECh. 29 - Prob. 29.47ECh. 29 - Prob. 29.48ECh. 29 - Prob. 29.49ECh. 29 - Prob. 29.51ECh. 29 - Prob. 29.52ECh. 29 - Prob. 29.53ECh. 29 - Prob. 29.54E
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