A study of reading comprehension in children compared three methods of instruction. The three methods of instruction are called Basal, DRTA, and Strategies. Basal is the traditional method of teaching, while DRTA and Strategies are two innovative methods based on similar theoretical considerations. The READING data set includes three response variables that the new methods were designed to improve. Analyze these variables using ANOVA methods. Be sure to include multiple comparisons or contrasts as needed. Write a report summarizing your findings.
Reading:
subject group pre1 pre2 post1 post2 post3 1 B 4 3 5 4 41 2 B 6 5 9 5 41 3 B 9 4 5 3 43 4 B 12 6 8 5 46 5 B 16 5 10 9 46 6 B 15 13 9 8 45 7 B 14 8 12 5 45 8 B 12 7 5 5 32 9 B 12 3 8 7 33 10 B 8 8 7 7 39 11 B 13 7 12 4 42 12 B 9 2 4 4 45 13 B 12 5 4 6 39 14 B 12 2 8 8 44 15 B 12 2 6 4 36 16 B 10 10 9 10 49 17 B 8 5 3 3 40 18 B 12 5 5 5 35 19 B 11 3 4 5 36 20 B 8 4 2 3 40 21 B 7 3 5 4 54 22 B 9 6 7 8 32 23 D 7 2 7 6 31 24 D 7 6 5 6 40 25 D 12 4 13 3 48 26 D 10 1 5 7 30 27 D 16 8 14 7 42 28 D 15 7 14 6 48 29 D 9 6 10 9 49 30 D 8 7 13 5 53 31 D 13 7 12 7 48 32 D 12 8 11 6 43 33 D 7 6 8 5 55 34 D 6 2 7 0 55 35 D 8 4 10 6 57 36 D 9 6 8 6 53 37 D 9 4 8 7 37 38 D 8 4 10 11 50 39 D 9 5 12 6 54 40 D 13 6 10 6 41 41 D 10 2 11 6 49 42 D 8 6 7 8 47 43 D 8 5 8 8 49 44 D 10 6 12 6 49 45 S 11 7 11 12 53 46 S 7 6 4 8 47 47 S 4 6 4 10 41 48 S 7 2 4 4 49 49 S 7 6 3 9 43 50 S 6 5 8 5 45 51 S 11 5 12 8 50 52 S 14 6 14 12 48 53 S 13 6 12 11 49 54 S 9 5 7 11 42 55 S 12 3 5 10 38 56 S 13 9 9 9 42 57 S 4 6 1 10 34 58 S 13 8 13 1 48 REALLY struggling with this thanks! 59 S 6 4 7 9 51 60 S 12 3 5 13 33 61 S 6 6 7 9 44 62 S 11 4 11 7 48 63 S 14 4 15 7 49 64 S 8 2 9 5 33 65 S 5 3 6 8 45 66 S 8 3 4 6 42
In: Statistics and Probability
Given the following grouped frequency distribution
| Data | Frequency |
| 30 - 34 | 15 |
| 35 - 39 | 20 |
| 40 - 44 | 15 |
| 45 - 49 | 10 |
| 50 - 54 | 5 |
| 55 - 59 | 4 |
| 60 - 64 | 3 |
| 65 - 69 | 1 |
| 70 - 74 | 1 |
Find the mean (give you answer to one decimal) =
Find the standard deviation (give your answer to two decimals) =
What is the shape of this distribution?
In: Statistics and Probability
you have a full factorial design with two levels for three factors. every trial had 2 runs. the difference in response values for every trial were [2,5,4,3,2,3,4,5]. calculate standard error for the effects.
how to do this? I tried lots of times.
In: Statistics and Probability
A baseball coach reviews the number of runs hit per game for the past several seasons. Since the team plays so many games, he selects a random sample of 10 games and records the number of runs scored in each game. The average number of runs scored is 9 with a standard deviation of 3.6 runs. Compute the margin of error given a confidence level of 99%. (Use a table or technology. Round your answer to three decimal places.)
In: Statistics and Probability
Perform a Pearson Product Moment Correlation on the following comparisons
|
a = .01/2 |
Step 1: Ho: __ _ ___ Ha: __ _ ___
Step 2: Alpha level = _____
Step 3: Sampling distribution is df = _____
Step 4: Decision Rule: I will reject the Ho if the |_robs_| value falls at or beyond the |_rcrit_| of ____, otherwise I will fail to reject
Step 5: Calculation: \_robs_/ = _____
Step 6: Summary: Since the |_robs_| of ____ _____________ the |_rcrit_| of _____, I therefore reject/fail to reject (choose one) the Ho.
Step 7: Conclusion: Since _______ occurred, I conclude ___________________________________________________________________.
| Weight | Age |
| 180 | 39 |
| 140 | 31 |
| 130 | 31 |
| 125 | 36 |
| 155 | 24 |
| 129 | 42 |
| 173 | 30 |
| 102 | 26 |
| 180 | 33 |
| 130 | 31 |
| 125 | 32 |
| 145 | 33 |
| 235 | 44 |
| 138 | 43 |
| 165 | 55 |
| 140 | 24 |
| 240 | 40 |
| 163 | 28 |
| 195 | 24 |
| 122 | 33 |
| 115 | 25 |
| 210 | 30 |
| 108 | 23 |
| 126 | 23 |
| 215 | 24 |
| 125 | 23 |
| 105 | 50 |
| 126 | 42 |
| 140 | 42 |
| 145 | 30 |
In: Statistics and Probability
3) You are rolling a 12 sided die 8 times.
a) What is the size for the sample space? Write 3 different outcomes
Find the probability for the following
b) All of them are different
c) All of them are consecutive
d) Exactly four 9s and exactly five 12s
e) At least one 11
In: Math
| In the
rainy season, the Amazon flows fast and runs deep. In one location,
the river is 25 m deep and moves at a speed of 4.0 m/s toward the
east. The earth's 50 ?T magnetic field is parallel to the
ground and directed northward.
You may want to review (Pages 806 - 809) . |
Part A If the bottom of the river is at 0 V, what is the potential (magnitude and sign) at the surface? |
In: Physics
20. A scientist believes that the frequency of cricket chirping is a good predictor of the ambient temperature. A random sample produced the following data where x is the number of cricket chirps in one minute and y is the ambient temperature in Fahrenheit.
| X | Y |
| 128 | 70 |
| 227 | 93 |
| 188 | 84 |
| 150 | 76 |
| 210 | 89 |
| 185 | 83 |
| 137 | 72 |
| 171 | 80 |
(a) Find an equation of the least squares regression line. Round the slope and y-intercept value to two decimal places. Describe method for obtaining results.
(b) Based on the equation from part (a), what is the predicted temperature when a cricket chirps 300 times in one minute? Show all work and justify your answer.
(c) Based on the equation from part (a), what is the predicted temperature when a cricket chirps 140 times in one minute? Show all work and justify your answer.
(d) Which predicted temperature that you calculated for (b) and
(c) do you think is closer to the true temperature and why?
In: Statistics and Probability
A scientist believes that the frequency of cricket chirping is a good predictor of the ambient temperature. A random sample produced the following data where x is the number of cricket chirps in one minute and y is the ambient temperature in Fahrenheit.
x 128 227 188 150 210 185 137 171
y 70 93 84 76 89 83 72 80
(a) Find an equation of the least squares regression line. Round the slope and y-intercept value to two decimal places. Describe the method for obtaining results.
(b) Based on the equation from part (a), what is the predicted temperature when a cricket chirps 300 times in one minute? Show all work and justify your answer.
(c) Based on the equation from part (a), what is the predicted temperature when a cricket chirps 140 times in one minute? Show all work and justify your answer.
(d) Which predicted temperature that you calculated for (b) and (c) do you think is closer to the true temperature and why?
In: Statistics and Probability
Identify which of the following statements will generate an error. If there is an error, which phase of compiler construction (if any) will be suitable to detect the following errors and why?
1. A function is defined with the same signature as the previous one.
2. A variable named ‘new’ is defined and initialized two times. Once in main function and second in a “for” loop inside main function.
3. A multi-line comment that starts but not ends.
4. The following assignment expression is made where “var” is of Boolean datatype. var=10;
5. A function named “func1” is defined as follows public abstract protected int func1(float x,int y){…}
6. A class named “demo_class” is defined that implements an interface “X” demo_class Class implements X{…}
7. A while loop is defined that runs infinitely.
8. A string constant that starts with an inverted comma but does not end.
9. The following do- while loop is created without any statement. int x=1; do{ }while(x>10)
10. An interface “Int1” is created that inherits another interface “Int2” and contains two variables as follows interface Int1 inherits Int2 { int var1, var2; }
In: Computer Science