A clinic developed a diet to impact body mass (fat and muscle).
A nutritionist in the clinic hypothesizes that heavier individuals
on the diet will predict more body fat. Below are the data for a
sample of clients from the clinic. Weight is measured in kilograms
(kg) and percentage body fat is estimated through skinfold
measurement. What can the nutritionist conclude with α =
0.01?
| Weight | Fat |
|---|---|
| 67 68 94 101 67 81 74 78 60 89 90 |
29 28 25 24 30 26 30 26 31 24 30 |
a.) Compute the statistic selected:
b.) Compute the appropriate test statistic(s) to make a decision
about H0.
(Hint: Make sure to write down the null and alternative hypotheses
to help solve the problem.)
Critical value =
Make an interpretation based on the results.
More weight of individuals on the diet significantly predicts more body fat.
The weight of individuals on the diet does not significantly predict body fat.
In: Math
Windows monitoring tools are essential to the Windows Systems Administrator. Three software tools that are essential are: Task Manager, Event Viewer and Resource Monitor. Create a short PPT presentation of at least six slides (or more) for a 15-minute Windows Administrators Lunch and Learn session on the use of these three tools using the following requirements:
1) A slide with the description of each tool (one slide per tool)
2) Show how to measure CPU, Memory and Network Activity in Task Manager
3) Demonstrate how to find different events of different severities in Event Viewer.
4) Discuss the four elements of Resource Monitor – CPU, Disk, Network and Memory and how it can be used in real time and to review historical logs.
In: Computer Science
(1) Which pattern, single-slit or double-slit, gives a more accurate determination of wavelength or do they both give equally accurate values? Defend your answer.
(2) From you superimposed single and double slit patterns, what can you conclude about the influences of the slit width, and the slit separation, or the double slit pattern?
In: Physics
QUESTION 6
Suppose a monopsonist is currently employing 10 workers and pays each of them $5. The wage paid to the additional worker is $7, and then the marginal expense of the 11th worker is.
|
$50 |
||
|
$70 |
||
|
$77 |
||
|
$27 |
2 points
QUESTION 7
Consider the simple leisure model in which the individual chooses between leisure (L) and money income (M). The marginal utility of leisure (MUL) is 15 and the marginal utility of money (MUM) is 3. At the optimum, the wage rate
|
$45 |
||
|
$0.20 |
||
|
$5 |
||
|
$15 |
2 points
QUESTION 8
A curve that shows all of the alternative consumption bundles that the worker likes equally well is called
|
A budget constraint. |
||
|
An indifference curve |
||
|
An individual demand curve |
||
|
A consumption bundle curve |
2 points
QUESTION 9
The budget set is _________ related to the nonlabor income and is __________ related to the wage.
|
positively and positively. |
||
|
positively and negatively |
||
|
negatively and positively. |
||
|
negatively and negatively. |
2 points
QUESTION 10
The theory of household production assumes that the family derives utility from
|
income. |
||
|
time spent in home production. |
||
|
market purchased goods. |
||
|
commodities ( meals, clean house, growth of children) produced by the family or purchased with family income. |
2 points
QUESTION 11
Marginal utility is
|
the change in a consumer's utility resulting from the addition of a very small amount of some good. |
||
|
the total utility a resulting from consuming some good, divided by the amount consumed. |
||
|
the change in a consumer's utility resulting from the addition of a very small amount of some good, divided by the amount added. |
||
|
the change in a consumer's utility resulting from the addition of a very small amount of some good, divided by the total amount being consumed. |
In: Economics
The relation between the real and the nominal interest rates is given by
r=i-πe
In: Economics
The nucleus of the hydrogen atom has a radius of about
1 x 10^-15 m. The electron is normally at a distance of about 5.3 x
10^-11 m
from the nucleus. Assuming that the hydrogen atom is a sphere with
a
radius of 5.3 x 10^-11 m, find (a) the volume of the atom, (b)
the
volume of the nucleus, and (c) the percentage of the volume of
the
atom that is occupied by the nucleus.The nucleus of the hydrogen
atom has a radius of about
1 x 10^-15 m. The electron is normally at a distance of about 5.3 x
10^-11 m
from the nucleus. Assuming that the hydrogen atom is a sphere with
a
radius of 5.3 x 10^-11 m, find (a) the volume of the atom, (b)
the
volume of the nucleus, and (c) the percentage of the volume of
the
atom that is occupied by the nucleus.
In: Physics
Write a java program, creating three threads, to sort two arrays and merge them into a third array. More specifically:
Create a thread to sort the first array. Create a thread to sort the second array. Create a thread to merge the arrays into the third array. Let the main method prints the merged array.
i want three threads to be created .
You must call the two sorter threads together. In other words, if we name these threads sorta, sortb, and merge, you must call the start methods in the following sequence: sorta.start(); sortb.start(); Some java code merge.start();
I post the sequential program for this assignment. Note that you need to change the classes Sorter and Merger to make them suitable for threads.
import java.util.Random;
public class Main{
public static void main(String[] args) {
Random rand = new Random();
int size = rand.nextInt(50) + 1;
int a[] = new int[size];
size = rand.nextInt(50) + 1;
int b[] = new int[size];
for(int i = 0; i < a.length; i++)
a[i] = rand.nextInt(999);
for(int i = 0; i < b.length; i++)
b[i] = rand.nextInt(999);
new Sorter(a);
new Sorter(b);
int[] c = new int[a.length + b.length];
new Merger(a, b, c);
for(int i = 0; i < c.length; i++)
System.out.print(c[i] + " ");
}
}
-------------------------------------------------------------------
public class Merger{
public Merger(int[]a, int[] b, int[] c){
merge(a, b, c);
}
private void merge(int[] a, int[] b, int[] c){
int index = 0, i = 0, j = 0;
while(i < a.length && j < b.length)
if(a[i] < b[j])
c[index++] = a[i++];
else
c[index++] = b[j++];
if(i < a.length)
for(int k = i; i < a.length; i++)
c[index++] = a[i];
if(j < b.length)
for(int k = j; j < b.length; j++)
c[index++] = b[j];
}
}
----------------------------------------------------------------------------------------------------------------
public class Sorter{
public Sorter(int[] a){
sort(a);
}
private void sort(int[] a){
for(int i = 0; i < a.length; i++){
int pos = i;
int min = a[i];
for (int j = i + 1; j < a.length; j++)
if(a[j] < min){
min = a[j];
pos = j;
}
a[pos] = a[i];
a[i] = min;
}
}
}
In: Computer Science
On planet Tehar, the free-fall acceleration is the same as that on Earth, but there is also a strong downward electric field that is uniform close to the planet's surface. A 1.86-kg ball having a charge of 5.04 μC is thrown upward at a speed of20.1 m/s. It hits the ground after an interval of 4.10 s. What is the potential difference between the starting point and the top point of the trajectory? (Use 9.8 m/s2 for the acceleration due to gravity.)
In: Physics
Why as a Finance Major do you have to understand corporate finance? why should every finance student know this course?
In: Finance
A small start up company is planning to launch their first new electric scooter model. Explain the implications of industry structure & performance for the industry/market as a whole.
In: Operations Management
In: Computer Science
A: equilibrium price increases
B: equilibrium price decreases
In column II, answer with the following key:
A: equilibrium quantity increases
B: equilibrium quantity decreases
Col. I Col. II
_____ _____ a. Consumer incomes decrease (electricity is a normal good).
____ ____ b. Taxes are increased on electrical utilities (utilities produce electricity).
____ ____c. The price of coal rises (coal is an input in producing electricity).
____ ____ d. The population grows.
____ _____ e. The price of electrical appliances increases (appliances and electricity are complements).
____ ____ f. The price of natural gas decreases (natural gas and electricity are complements).
____ _____ g. Subsidies are reduced to electric utilities.
____ _____ h. A new technology makes it cheaper to produce electricity.
____ _____ i. A negative (adverse) supply shock hits the electricity market.
____ _____ j. It is summertime, and there is a seasonal increase in the demand for electricity.
In: Economics
Stoichiometry Problems for Reaction in Aqueous Solutions
-.The quantity of Cl– in a municipal water supply is determined by titrating the sample with Ag+. The precipitation reaction taking place during the titration is Ag(aq) + Cl(aq) ->AgCl(s)
The end point in this type of titration is marked by a change in color of a special type of indicator. (a) How many grams of chloride ion are in a sample of the water if 20.2 mL of 0.200 M Ag+ is needed to react with all the chloride in the sample? (b) If the sample has a mass of 15.0 g, what percentage of Cl– does it contain?
-.A mysterious white powder is found at a crime scene. A simple chemical analysis concludes that the powder is a mixture of sugar and morphine (C17H19NO3), a weak base similar to ammonia. The crime lab takes 10.00 g of the mysterious white powder, dissolves it in 100.00 mL water, and titrates it to the equivalence point with 2.84 mL of a standard 0.100 M HCl solution. What is the percentage of morphine in the white powder?
-.A sample of an iron ore is dissolved in acid, and the iron is converted to Fe2+. The sample is then titrated with 57.20 mL of 0.05240 M MnO4– solution. The oxidation-reduction reaction that occurs during titration is
MnO4(aq) + Fe^2+(aq) +8H(aq) -> Mn^2+(aq) +5Fe^3+(aq) + 4H2O(l)
How many moles of MnO4– were added to the solution? (b) How many moles of Fe2+ were in the sample? (c) How many grams of iron were in the sample? (d) If the sample had a mass of 2.8890 g, what is the percentage of iron in the sample?
-A sample of 70.5 mg of potassium phosphate is added to 25.0 mL of 0.050 M silver nitrate, resulting in the formation of a precipitate. (a) Write the molecular equation for the reaction. (b) What is the limiting reactant in the reaction? (c) Calculate the theoretical yield, in grams, of the precipitate that forms.
In: Chemistry
Exercise 13.97
The kinetics of the following second-order reaction were studied
as a function of temperature:
C2H5Br(aq)+OH?(aq)?C2H5OH(l)+Br?(aq)
|
Temperature (?C) |
k (L/mol?s) |
|
25 |
8.81 |
In: Chemistry
Calculate the number of pounds of CO2 released into the atmosphere when a 25.0-gallon tank of gasoline is burned in an automobile engine. Assume that gasoline is primarily octane, C8H18, and that the density of gasoline is 0.692 g·mL–1 (this assumption ignores additives). Also assume complete combustion.
In: Chemistry