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A a. A high school counselor wants to determine if there is a difference in SAT scores for students who take the test as a freshman, sophomore, junior, or senior. A random sample of 25 students from each class was asked to take the SAT and their scores were recorded. P b. A marketing director developed a short television commercial to improve the image of a company. The commercial was tested on 20 people. People's attitudes about the company were measured with a questionnaire when they first came in for the experiment and then again after viewing the commercial. c. A researcher wants to examine the accuracy of people's judgment of time. Individuals were placed in a waiting room with no time cues for 15 minutes. After this time, the researcher asked the participants to judge how much time had passed. U d. An I/O psychologist wants to know if there is a difference in worker evaluations depending if the evaluator is a male or female. 15 men and 15 women managers were asked to evaluate the same group worker files. The scores on the worker evaluations were recorded for each manager. e. A psychologist wants to determine the effect of relaxing music on a person's reaction to a stressful event. Participants were randomly assigned to one of three groups. A participant was brought into a room with no windows and only one door. In the background, soft classical music, heavy rock music, or no music at all was playing. After a set amount of time, a fire alarm went off, and smoke started coming from under the door. A hidden video camera records the participant's behavior that is later scored by the experimenter. Time for the participant to exit the room was recorded. B. f. A social worker wants to know if there is a relationship between the number of foster children living with a family and a child's academic success in elementary school. The school GPA and number of children living in the household was recorded for 50 foster children.

A a. A high school counselor wants to determine if there is a difference in SAT scores for students who take the test as a freshman, sophomore, junior, or senior. A random sample of 25 students from each class was asked to take the SAT and their scores were recorded. P b. A marketing director developed a short television commercial to improve the image of a company. The commercial was tested on 20 people. People's attitudes about the company were measured with a questionnaire when they first came in for the experiment and then again after viewing the commercial. c. A researcher wants to examine the accuracy of people's judgment of time. Individuals were placed in a waiting room with no time cues for 15 minutes. After this time, the researcher asked the participants to judge how much time had passed. U d. An I/O psychologist wants to know if there is a difference in worker evaluations depending if the evaluator is a male or female. 15 men and 15 women managers were asked to evaluate the same group worker files. The scores on the worker evaluations were recorded for each manager. e. A psychologist wants to determine the effect of relaxing music on a person's reaction to a stressful event. Participants were randomly assigned to one of three groups. A participant was brought into a room with no windows and only one door. In the background, soft classical music, heavy rock music, or no music at all was playing. After a set amount of time, a fire alarm went off, and smoke started coming from under the door. A hidden video camera records the participant's behavior that is later scored by the experimenter. Time for the participant to exit the room was recorded. B. f. A social worker wants to know if there is a relationship between the number of foster children living with a family and a child's academic success in elementary school. The school GPA and number of children living in the household was recorded for 50 foster children.

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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significantly different from the distribution for the population of licensed drivers? bunger. Is the age distribution for this sample Use α-.05. %3D Extra credit: for Were then erapy A) z-test B) t-test C) t-test independent samples D) t-test related samples E) ANOVA F) Factorial ANOVA G) Repeated Measures ANOVÁ H) Pearson Correlation I) Chi Square(1 Read the following experiments and match the most appropriate statistical test: point each) A a. A high school counselor wants to determine if there is a difference in SAT scores for students who take the test as a freshman, sophomore, junior, or senior. A random sample of 25 students from each class was asked to take the SAT and their scores were recorded. P b. A marketing director developed a short television commercial to improve the image of a company. The commercial was tested on 20 people. People's attitudes about the company were measured with a questionnaire when they first came in for the experiment and then again after viewing the commercial. c. A researcher wants to examine the accuracy of people's judgment of time. Individuals were placed in a waiting room with no time cues for 15 minutes. After this time, the researcher asked the participants to judge how much time had passed. U d. An I/O psychologist wants to know if there is a difference in worker evaluations depending if the evaluator is a male or female. 15 men and 15 women managers were asked to evaluate the same group worker files. The scores on the worker evaluations were recorded for each manager. e. A psychologist wants to determine the effect of relaxing music on a person's reaction to a stressful event. Participants were randomly assigned to one of three groups. A participant was brought into a room with no windows and only one door. In the background, soft classical music, heavy rock music, or no music at all was playing. After a set amount of time, a fire alarm went off, and smoke started coming from under the door. A hidden video camera records the participant's behavior that is later scored by the experimenter. Time for the participant to exit the room was B recorded. f. A social worker wants to know if there is a relationship between the number of foster children living with a family and a child's academic success in elementary school. The school GPA and number of children living in the household was recorded for 50 foster children.
Transcribed Image Text:significantly different from the distribution for the population of licensed drivers? bunger. Is the age distribution for this sample Use α-.05. %3D Extra credit: for Were then erapy A) z-test B) t-test C) t-test independent samples D) t-test related samples E) ANOVA F) Factorial ANOVA G) Repeated Measures ANOVÁ H) Pearson Correlation I) Chi Square(1 Read the following experiments and match the most appropriate statistical test: point each) A a. A high school counselor wants to determine if there is a difference in SAT scores for students who take the test as a freshman, sophomore, junior, or senior. A random sample of 25 students from each class was asked to take the SAT and their scores were recorded. P b. A marketing director developed a short television commercial to improve the image of a company. The commercial was tested on 20 people. People's attitudes about the company were measured with a questionnaire when they first came in for the experiment and then again after viewing the commercial. c. A researcher wants to examine the accuracy of people's judgment of time. Individuals were placed in a waiting room with no time cues for 15 minutes. After this time, the researcher asked the participants to judge how much time had passed. U d. An I/O psychologist wants to know if there is a difference in worker evaluations depending if the evaluator is a male or female. 15 men and 15 women managers were asked to evaluate the same group worker files. The scores on the worker evaluations were recorded for each manager. e. A psychologist wants to determine the effect of relaxing music on a person's reaction to a stressful event. Participants were randomly assigned to one of three groups. A participant was brought into a room with no windows and only one door. In the background, soft classical music, heavy rock music, or no music at all was playing. After a set amount of time, a fire alarm went off, and smoke started coming from under the door. A hidden video camera records the participant's behavior that is later scored by the experimenter. Time for the participant to exit the room was B recorded. f. A social worker wants to know if there is a relationship between the number of foster children living with a family and a child's academic success in elementary school. The school GPA and number of children living in the household was recorded for 50 foster children.
Fg. A school psychologist is interested in the effect of violent television programs on a child's aggression depending on if the show is a cartoon or not. Eighty children were recruited and were divided into equal groups. Half of the children watched a violent television program while the other half watched a non-violent program. Half of the children watched a cartoon while the other half watched a show that was not a cartoon. The children were then placed in a small group and the researcher measured the level of aggressiveness of each child. h. A social psychologist wants to know if people are more or less likely to help a person that appears poor. A person driving either a new sports car or an old, beat-up hatchback pulled up to people on a college campus and asked for directions. The number of people that helped in each condition was recorded. l i. A psychiatrist wants to know at what point during treatment does therapy for depression have its greatest effect. 30 people who were seeking treatment for depression were asked to take the Beck Depression Inventory (BDI). They were then asked to take the BDI once a week for the next 6 weeks while they were in therapy. wh ety and of ce that es cha Wh plain oser Wenk akp
Transcribed Image Text:Fg. A school psychologist is interested in the effect of violent television programs on a child's aggression depending on if the show is a cartoon or not. Eighty children were recruited and were divided into equal groups. Half of the children watched a violent television program while the other half watched a non-violent program. Half of the children watched a cartoon while the other half watched a show that was not a cartoon. The children were then placed in a small group and the researcher measured the level of aggressiveness of each child. h. A social psychologist wants to know if people are more or less likely to help a person that appears poor. A person driving either a new sports car or an old, beat-up hatchback pulled up to people on a college campus and asked for directions. The number of people that helped in each condition was recorded. l i. A psychiatrist wants to know at what point during treatment does therapy for depression have its greatest effect. 30 people who were seeking treatment for depression were asked to take the Beck Depression Inventory (BDI). They were then asked to take the BDI once a week for the next 6 weeks while they were in therapy. wh ety and of ce that es cha Wh plain oser Wenk akp
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