Statistics Projects for High School Students
Ernstfalld 2021-07-20Researchers carried our a survey of fourth-, fifth-, and sixth-grade students in Michigan. Students were asked if good grades, athletic ability, or being popular was most important to them. The two-way table summarizes the survey data.
Cem Hayes 2021-07-20Make a scatterplot of the data with two new points added. Point A: 10% return, 25 new birds. Point B: 40% return, 5 new birds. Find two new correlations: for the original data plus Point A and for the original data plus Point B.
Daniaal Sanchez 2021-07-19Graph the following data on a scatterplot. a. Does the graph show either a positive or a negative association? b. Does there appear to be a connection between height and spelling ability? c. Does greater height cause better spelling ability? d. What other factors could create the association you see?
Wotzdorfg 2021-07-19Construct a scatterplot and identify the mathematical model that best fits the given data.
Construct a scatterplot and identify the mathematical model that best fits the given data.
Dillard 2021-07-16"It is right to use animals for medical testing if it might save human lives." The General Social Survey asked 1152 adults to react to this statement Here is the two-way table of their responses:
boitshupoO 2021-07-13Sketch a scatterplot showing data for which the correlation is r = -1.
fortdefruitI 2021-07-05When two targets are presented close together in a rapid visual stream, the second target is often missed. Psychologists call this phenomenon the attentional blink (AB). A study published in Advances in Cognitive Psychology (July 2013) investigated whether simultaneous or preceding sounds could reduce AB. Twenty subjects were presented a rapid visual stream of symbols and letters on a computer screen and asked to identify the first and second letters (the targets). After several trials, the subject's AB magnitude was measured as the difference between the percentages of first target and second target letters correctly identified. Each subject performed the task under each of three conditions. In the Simultaneous condition, a sound (tone) was presented simultaneously with the second target; in the Alert condition, a sound was presented prior to the coming of the second target; and in the No-Tone condition, no sound was presented with the second target. Scatterplots of AB magnitude for each possible pair of conditions are shown below as well as the least squares line for each.
a. Which pair of conditions produces the least squares line with the steepest estimated slope?
b. Which pair of conditions produces the least squares line with the largest SSE?
c. Which pair of conditions produces the least squares line with the smallest estimate of
When two targets are presented close together in a rapid visual stream, the second target is often missed. Psychologists call this phenomenon the attentional blink (AB). A study published in Advances in Cognitive Psychology (July 2013) investigated whether simultaneous or preceding sounds could reduce AB. Twenty subjects were presented a rapid visual stream of symbols and letters on a computer screen and asked to identify the first and second letters (the targets). After several trials, the subject's AB magnitude was measured as the difference between the percentages of first target and second target letters correctly identified. Each subject performed the task under each of three conditions. In the Simultaneous condition, a sound (tone) was presented simultaneously with the second target; in the Alert condition, a sound was presented prior to the coming of the second target; and in the No-Tone condition, no sound was presented with the second target. Scatterplots of AB magnitude for each possible pair of conditions are shown below as well as the least squares line for each.
a. Which pair of conditions produces the least squares line with the steepest estimated slope?
b. Which pair of conditions produces the least squares line with the largest SSE?
c. Which pair of conditions produces the least squares line with the smallest estimate of
Chardonnay Felix 2021-07-05HOW can you use technology to describe associations in scatter plots?
Khaleesi Herbert 2021-07-02How can you use a scatterplot to describe the relationship between two data sets?
Annette Arroyo 2021-07-02One bushel of apples from a dwarf apple tree is equal to 42 pounds. Write an expression to find the number of pounds of apples in any number of bushels. If one tree can produce 6 bushels, how many pounds of apples will an orchard of 100 trees produce?
cistG 2021-06-30The _______ relative frequencies are the sums of each row and column in a two-way table. (joint, marginal, or conditional)
Falak Kinney 2021-06-29Do men and women differ in their attitudes toward public corruption and tax evasion? This was the question of interest in a study published in Contemporary Economic Policy (Oct. 2010). The data for the analysis were obtained from a representative sample of over 30,000 Europeans. Each person was asked how justifiable it is for someone to (1) accept a bribe in the course of their duties and (2) cheat on their taxes. Responses were measured as 0, 1, 2, or 3, where O = "always justified" and 3 = "never justified." The large-sample Wilcoxon rank sum test was applied in order to compare the response distributions of men and women.
a. Give the null hypothesis for the test in the words of the problem.
b. An analysis of the "justifiability of corruption" responses yielded a large-sample test statistic of
c. Refer to part b. Women had a larger rank sum statistic than men. What does this imply about gender attitudes. toward corruption?
d. An analysis of the "justifiability of tax evasion" responses yielded a large-sample test statistic of
e. Refer to part d. Again, women had a larger rank sum statistic than men. What does this imply about gender attitudes toward tax evasion?
Do men and women differ in their attitudes toward public corruption and tax evasion? This was the question of interest in a study published in Contemporary Economic Policy (Oct. 2010). The data for the analysis were obtained from a representative sample of over 30,000 Europeans. Each person was asked how justifiable it is for someone to (1) accept a bribe in the course of their duties and (2) cheat on their taxes. Responses were measured as 0, 1, 2, or 3, where O = "always justified" and 3 = "never justified." The large-sample Wilcoxon rank sum test was applied in order to compare the response distributions of men and women.
a. Give the null hypothesis for the test in the words of the problem.
b. An analysis of the "justifiability of corruption" responses yielded a large-sample test statistic of
c. Refer to part b. Women had a larger rank sum statistic than men. What does this imply about gender attitudes. toward corruption?
d. An analysis of the "justifiability of tax evasion" responses yielded a large-sample test statistic of
e. Refer to part d. Again, women had a larger rank sum statistic than men. What does this imply about gender attitudes toward tax evasion?
Chaya Galloway 2021-06-26What do you notice about the value that always falls in the cell to the lower right of a two-way table when marginal relative frequencies have been written in? What does this value represent?
Jerold 2021-06-26Make a scatterplot of the data. Use 87 for 1987
.
Make a scatterplot of the data. Use 87 for 1987
.
waigaK 2021-06-25Use a scatterplot and the linear correlation coefficient r to determine whether there is a correlation between the two variables.
x y
1 3
0 1
15 5
2 6
3 8
Annette Arroyo 2021-06-24Maurice and Lester are twins who have just graduated from college. They have both been offered jobs where their take-home pay would be $2500 per month. Their parents have given Maurice and Lester two options for a graduation gift. Option 1: If they choose to pursue a graduate degree, their parents will give each of them a gift of $35,000. However, they must pay for their tuition and living expenses out of the gift. Option 2: If they choose to go directly into the workforce, their parents will give each of them a gift of $5000. Maurice decides to go to graduate school for 2 years. He locks in a tuition rate by paying $11,500 for the 2 years in advance, and he figures that his monthly expenses will be $1000. Lester decides to go straight into the workforce. Lester finds that after paying his rent, utilities, and other living expenses, he will be able to save $200 per month. Their parents deposit the appropriate amount of money in a money market account for each twin. The money market accounts are currently paying a nominal interest rate of 3 percent, compounded monthly. Lester works during the time that Maurice attends graduate school. Each month, Lester saves $200 and deposits this amount into the $5000 money market account that his parents set up for him when he graduated. If Lester's initial balance is
Maurice and Lester are twins who have just graduated from college. They have both been offered jobs where their take-home pay would be $2500 per month. Their parents have given Maurice and Lester two options for a graduation gift. Option 1: If they choose to pursue a graduate degree, their parents will give each of them a gift of $35,000. However, they must pay for their tuition and living expenses out of the gift. Option 2: If they choose to go directly into the workforce, their parents will give each of them a gift of $5000. Maurice decides to go to graduate school for 2 years. He locks in a tuition rate by paying $11,500 for the 2 years in advance, and he figures that his monthly expenses will be $1000. Lester decides to go straight into the workforce. Lester finds that after paying his rent, utilities, and other living expenses, he will be able to save $200 per month. Their parents deposit the appropriate amount of money in a money market account for each twin. The money market accounts are currently paying a nominal interest rate of 3 percent, compounded monthly. Lester works during the time that Maurice attends graduate school. Each month, Lester saves $200 and deposits this amount into the $5000 money market account that his parents set up for him when he graduated. If Lester's initial balance is
kuCAu 2021-06-24Refer to the Journal of Applied Psychology (Jan. 2011) study of the determinants of task performance. In addition to
Conscientiousness
Job Complexity
Emotional Stability
Organizational Citizenship
Counterproductive Work
Refer to the Journal of Applied Psychology (Jan. 2011) study of the determinants of task performance. In addition to
Conscientiousness
Job Complexity
Emotional Stability
Organizational Citizenship
Counterproductive Work
fortdefruitI 2021-06-23A researcher randomly surveys people with a medical condition about whether they received a treatment and whether their condition improved. The results are shown. Make a two-way table that includes the marginal frequencies. Treatment
Improved: 34
Did not improve: 10
Not Treatment
Improved: 12
Did not improve: 29
Albarellak 2021-06-23A group of students were polled to find out how many were planning to major in a scientific field of study in college. The results of the poll are shown in the two-way table. Which of the following statements is true? A. Three hundred sixty students were polled in all. B. A student in the senior class is more likely to be planning on a scientific major than a nonscientific major. C. A student planning on a scientific major is more likely to be a junior than a senior. D. More seniors than juniors plan to enter a scientific field of study.
A group of students were polled to find out how many were planning to major in a scientific field of study in college. The results of the poll are shown in the two-way table. Which of the following statements is true? A. Three hundred sixty students were polled in all. B. A student in the senior class is more likely to be planning on a scientific major than a nonscientific major. C. A student planning on a scientific major is more likely to be a junior than a senior. D. More seniors than juniors plan to enter a scientific field of study.
necessaryh 2021-06-23Some high school physics students dropped a ball and measured the distance fallen (in centimeters) at various times (in seconds) after its release. If you have studied physics, you probably know that the theoretical relationship between the variables is distance
(a) A plot of distance versus
(b) A plot of radic distance versus time
(c) A plot of distance versus radic time
(d) A plot of
(e) A plot of
Some high school physics students dropped a ball and measured the distance fallen (in centimeters) at various times (in seconds) after its release. If you have studied physics, you probably know that the theoretical relationship between the variables is distance
(a) A plot of distance versus
(b) A plot of radic distance versus time
(c) A plot of distance versus radic time
(d) A plot of
(e) A plot of
