Answer the one-way ANOVA questions using the data below. Use α =
0.01.
| 1 | 2 | 3 | 4 |
|---|---|---|---|
| 53 49 47 44 51 34 44 |
44 39 36 36 39 30 12 |
46 42 39 37 36 34 30 |
25 35 30 40 33 28 31 |
Compute the corresponding effect size(s) and indicate
magnitude(s).
η2 = ; ---Select--- na
trivial effect small effect medium effect large effect
Conduct Tukey's Post Hoc Test for the following
comparisons:
3 vs. 4: difference = ;
significant: ---Select--- Yes No
2 vs. 4: difference = ;
significant: ---Select--- Yes No
f) Conduct Scheffe's Post Hoc Test for the
following comparisons:
2 vs. 3: test statistic = ;
significant: ---Select--- Yes No
3 vs. 4: test statistic = ;
significant: ---Select--- Yes No
In: Statistics and Probability
1.
A football team consists of 18 freshmen and 18 sophomores, 15 juniors, and 12 seniors.
Four players are selected at random to serve as captains. Find the probability that at least 1 of the students is a senior.
2.
If a gambler rolls two dice and gets a sum of 10, he wins $10, and if he gets a sum of
three, he wins $20. The cost to play the game is $5. What is the expectation of this game?
3.
Determine the indicated probability for a binomial experiment with the given number of
trials n and the given success probability p.
n=13, p=0.7, P(Fewer than 4)
4.
The Australian sheep dog is a breed renowned for its intelligence and work ethic. It is
estimated that 45% of adult Australian sheep dogs weigh 65 pounds or more. A sample of 18 adult dogs is studied. What is the standard deviation of the number of dogs who weigh 65 lb or more?
5.
If there are 20 typographical errors randomly distributed in a 250-page document, find
the probability that a given page contains exactly two errors.
6.
Last year, a manufacturer produced 1,850,000 DVD players. Of these, approximately 2%
were defective. Assume that a simple random sample of n=220 players is drawn. Use the Poisson approximation to the binomial distribution to compute the probability that exactly fourteen of the 220 DVD players were defective.
7.
The average charitable contribution itemized per income tax return in Pennsylvania is
$792. Suppose that the distribution of contributions is normal with a standard deviation of $103. Find the limits for the middle 50% of contributions
8.
X is a normally distributed random variable with a standard deviation of 3.00. Find the
mean of Xif 12.71% of the area under the distribution curve lies to the right of 11.42. (Note: the diagram is not necessarily to scale.)
ment
9.
A sample of size 36 will be drawn from a population with mean 27 and standard
deviation 13. Find the probability that x will be greater than 30.
10.
A ferry will safely accommodate 70 tons of passenger cars. Assume that the mean weight 17)
of a passenger car is 1.7 tons with standard deviation 0.7 tons. If a random sample of 37 cars are loaded onto the ferry, what is the probability that the maximum safe weight will be exceeded?
11.
A ferry will safely accommodate 82 tons of passenger cars. Assume that the mean weight
of a passenger car is 1.9 tons with standard deviation 0.6 tons. If a random sample of 40 cars are loaded onto the ferry, what is the probability that the maximum safe weight will be exceeded?
12.
Use the normal approximation to find the indicated probability. The sample size is n, the
population proportion of successes is p, and X is the number of successes in the sample.
n=90, p=0.53: P(X<50)
13.
A biologist estimates that 40% of the deer in a region carry a certain type of tick. For a
sample of 300 deer selected at random, what is the chance that 124 or fewer deer have this tick?
In: Statistics and Probability
4) Finally, you wish to determine if the mean monthly sales of the shirt in the superstores that comprise part of the chain in four regions of the country that you have defined differ from each other. Random samples of the sales of the item in stores chosen from each region are selected. The sample data comprising these sales figures is shown in appendix four below. At the 1% level of significance, are there any differences in the mean monthly sales of the item in the populations of superstores in the four regions of the country? If you do observe that there are differences in the mean monthly sales of the shirt, perform the necessary additional test to ascertain which pairs of stores exhibit different mean sales at the 1% level of significance. Perform the appropriate test to show whether the desired property of homogeneity of variances exists for this study, also at the 1% level of significance
Region
Store One Two Three Four
1 459 282 545 490
2 490 355 588 402
3 421 348 496 397
4 500 389 439 440
5 489 276 476 501
6 540 430 510 375
7 555 387 519 398
8 421 411 483 490
9 489 443 311 355
10 551 477 390 439
11 490 398 430 503
12 401 375 275 622
Q.01,4, 44 = 4.68
In: Statistics and Probability
4) Finally, you wish to determine if the mean monthly sales of the shirt in the superstores that comprise part of the chain in four regions of the country that you have defined differ from each other. Random samples of the sales of the item in stores chosen from each region are selected. The sample data comprising these sales figures is shown in appendix four below. At the 1% level of significance, are there any differences in the mean monthly sales of the item in the populations of superstores in the four regions of the country? If you do observe that there are differences in the mean monthly sales of the shirt, perform the necessary additional test to ascertain which pairs of stores exhibit different mean sales at the 1% level of significance. Perform the appropriate test to show whether the desired property of homogeneity of variances exists for this study, also at the 1% level of significance
Region
Store One Two Three Four
1 459 282 545 490
2 490 355 588 402
3 421 348 496 397
4 500 389 439 440
5 489 276 476 501
6 540 430 510 375
7 555 387 519 398
8 421 411 483 490
9 489 443 311 355
10 551 477 390 439
11 490 398 430 503
12 401 375 275 622
Q.01,4, 44 = 4.68
In: Statistics and Probability
4 Q5 Total
Marks
8 Marks
8 Marks
8 Marks
8 Marks
8 Marks 40 Marks
Q1: A cantilever beam having span ‘L’ m was subjected to a
uniformly distributed load of magnitude 8 kN/m for a distance of
‘0.6 L’ from the free end and two concentrated loads one of
magnitude 15 kN at a distance ‘0.25 L’ m from the free end while
the other of magnitude ‘22’ kN at a distance ‘0.6 L’ m from the
free end respectively. It was observed that the maximum bending
moment acting on the beam is equal to (-369 kNm). Suggest a
suitable span for the beam based on the loading condition. How it
will change the reaction at the fixed support? What happens to the
shear force and bending moment values at the fixed support, free
end and at the center of the beam? By plotting bending moment and
shear force diagram for the beam briefly conclude the relationship
between the values for shear force and bending moment.
In: Civil Engineering
Aydin Ltd uses perpetual inventory in connection with Average costing. The company began the year with zero inventory balance. They had the following transactions during the year: 1 July Purchased 50 units at $3.00 per unit
5 July Sold 10 units at a price of $10.00 per unit
7 July Purchased 130 units at $4.00 per unit
9 July Sold 60 units at a price of $ 11.00 per unit
15 July Purchased 60 units at $5.00 per unit
30 July Sold 50 units at a price of $12.00 per unit
At the end of the year, they counted the inventory and found 125 units remaining. Is this correct? If incorrect, what is the correct number of units remaining in inventory? How much was the Cost of sales for the year? (Round to the nearest whole dollar)
In: Accounting
Type into a character array, or copy from an online source, Lincoln’s Gettysburg Address. Write a C Language Program that will search for the following words and then print out the entire sentence from Lincoln’s Gettysburg Address for every occurrence of each of the specified words:
civil nation nobly people place proper
Your program should search through the Gettysburg Address and find the answers, not pre-load them to print out once a particular word is sought.
This is my current code that I came up with:
#include <stdio.h>
#include <string.h>
int main(void) {
char address[] = "Fourscore and seven years ago our
fathers brought forth on this continent, a new nation, conceived in
Liberty, and dedicated to the proposition that all men are created
equal. Now we are engaged in a great civil war, testing whether
that nation, or any nation so conceived and so dedicated, can long
endure. We are met on a great battlefield of that war. We have come
to dedicate a portion of that field, as a final resting place for
those who here gave their lives that that nation might live. It is
altogether fitting and proper that we should do this. But, in a
larger sense, we cannot dedicate-we cannot consecrate-we cannot
hallow-this ground. The brave men, living and dead, who struggled
here, have consecrated it, far above our poor power to add or
detract. The world will little note, nor long remember what we say
here, but it can never forget what they did here. It is for us the
living, rather, to be dedicated here to the unfinished work which
they who fought here have thus far so nobly advanced. It is rather
for us to be here dedicated to the great task remaining before
us-that from these honored dead we take increased devotion to that
cause for which they gave the last full measure of devotion-that we
here highly resolve that these dead shall not have died in
vain-that this nation, under God, shall have a new birth of
freedom-and that government of the people, by the people, for the
people shall not perish from the earth.";
char line[50], word1 = "civil", word2 = "nation",
word3 = "nobly", word4 = "people", word5 = "place", word6 =
"proper";
int loc, i, j, k=0;
puts("Searching for the sentences that contain the words: civil, nation, nobly, people, place, proper\n");
loc = strstr(address, word1); //searching for
'civil' in the string
if (loc == NULL)
puts("No match found.");
else
printf("%s", line);
loc = strstr(address, word2); //searching
for 'nation' in the string
if (loc == NULL)
puts("No match found.");
else
printf("%s", line);
loc = strstr(address, word3); //searching
for 'nobly' in the string
if (loc == NULL)
puts("No match found.");
else
printf("%s", line);
loc = strstr(address, word4); //searching
for 'people' in the string
if (loc == NULL)
puts("No match found.");
else
printf("%s", line);
loc = strstr(address, word5); //searching
for 'place' in the string
if (loc == NULL)
puts("No match found.");
else
printf("%s", line);
loc = strstr(address, word6); //searching
for 'proper' in the string
if (loc == NULL)
puts("No match found.");
else
printf("%s", line);
return 0;
}
What am I doing wrong here?
In: Computer Science
PHSTAT ONLY!!!
Instructions: Show your complete solution. Simply giving the final answer without showing your calculations will NOT merit any points. If you’re using PhStat or Excel calculations, upload the excel file. You can also cut and paste the Excel work output on a word file, and upload it here.
Given a normal distribution with µ = 47 and σ = 6, what is the probability that:
In: Statistics and Probability
Introduce hydraulic loss into the Bernoulli equation to account for the energy lost by the water flowing through the small horizontal pipe. Derive the expression for the hydraulic loss by considering two points at the inlet and outlet of the small horizontal pipe.
In: Physics
During the process of digital sampling, data can be lost due to aliasing. Analyse this problem and provide at least two possible solutions. Also, determine the rate at which a signal should be sampled, if the highest frequency is 60MHz.
In: Computer Science