An experiment involves 18 participants. From these, a group of 5 participants is to be tested...
An experiment involves 18 participants. From these, a group of 5 participants is to be tested under a special condition. How many groups of 5 participants can be chosen, assuming that the order in which the participants are chosen is irrelevant?
Homework Answers
Total participants = 18
Number of ways to select 5 participants =
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An experiment involves 18 participants. From these, a group of 5
participants is to be tested...
Answer the questions below. (a) From the 12 albums released by a musician, the recording company...
Answer the questions below. (a) From the 12 albums released by a musician, the recording company wishes to release 9 in a boxed set. How many different boxed sets are possible? (b) An experiment involves 31 participants. From these, a group of 5 participants is to be tested under a special condition. How many groups of 5 participants are possible?
You can answer any 18 questions from the 21 questions on an exam. In how many...
You can answer any 18 questions from the 21 questions on an exam. In how many different ways can you choose the 18 questions, assuming that the order in which you choose the questions is irrelevant?
In order to conduct an experiment, 4 subjects are randomly selected from a group of 45...
In order to conduct an experiment, 4 subjects are randomly selected from a group of 45 subjects. How many different groups of 4 subjects are possible? The number of possible different groups is (Type a whole number.)
which of the following is true of focus group interviews? typically made up of 3-5 participants...
which of the following is true of focus group interviews? typically made up of 3-5 participants led by a group leader who is chosen by the participants meet for 90 minutes to 2 hours provide quantitative data
Subject bias can occur in an experiment when the participants are aware of the purpose of...
Subject bias can occur in an experiment when the participants are aware of the purpose of the study and respond in a way that they think the researchers want. For example, if participants believe they are in a study to test if coffee improves your mood, those who drank coffee might claim to be happier than they really are. Based on the information given, which of the following experiments is most likely to have the issue of a control or...
Problem 5. A psychologist will select 5 preschool children from a class of 11 to experiment...
Problem 5. A psychologist will select 5 preschool children from a class of 11 to experiment on. Suppose 4 of the children are male and 7 are female. How many different way could 5 children be chosen out of the 11? How many different ways could 3 male children and 2 female children be chosen for the experiment. What is the probability that 3 male children and 2 female children be chosen for the experiment if the selection was done...
Water Land b/w independent measures t test One group of participants was expected to perform a...
Water Land b/w independent measures t test One group of participants was expected to perform a memory task under water and a second group of participants was expected to perform a memory task on land. 82 84 76 85 86 The data for memory accuracy scores are shown to the right in column Rand S, respectively) 83 80 75 79 78 86 82 Determine the following: 82 82 84 86 Use the appropriate two-tailed statistical test and an alpha level...
Part I. Understanding What Makes an Experiment 1) Please identify the 3 vital components of an experiment. After identifying each component, write at least one sentence elaborating on/explaining each...
Part I. Understanding What Makes an Experiment 1) Please identify the 3 vital components of an experiment. After identifying each component, write at least one sentence elaborating on/explaining each component (10 points) Answer – The most conventional type of experiment involves three major pairs of components: independent and dependent variables, pretesting and post testing, and experimental and control groups. An experiment examines the effects of independent variable on a dependent variable. 1- Manipulate at least one independent variable. This means...
9. A study group is to be selected from a group of 16 students. The group consists of 5 freshmen, 7 sophomores, and 4 juniors. a) In how many ways can a group of 6 students be selected from this gr...
9. A study group is to be selected from a group of 16 students. The group consists of 5 freshmen, 7 sophomores, and 4 juniors. a) In how many ways can a group of 6 students be selected from this group? b) If the study group is to consist of 2 freshmen, 3 sophomores, and 1 junior, how many different groups are possible? c) What is the probability that a group of 6 students will consist of 2 freshmen, 3...
PART I: The Asch (1952) Experiment Solomon Asch (1952) examined the effects of group pressure on...
PART I: The Asch (1952) Experiment Solomon Asch (1952) examined the effects of group pressure on conformity. He expected that individuals would tend to conform to group judgment in a perception task. Subjects were asked to perform a perception task indicating which of three vertical lines on one card was the same length as a single vertical line on another. Each subject performed the task for several sets of lines in two conditions. In the first condition, Condition 1, the...
In order to conduct an experiment, 4 subjects are randomly selected from a group of 45 subjects. How many different groups of 4 subjects are possible? The number of possible different groups is (Type a whole number.)
Problem 5. A psychologist will select 5 preschool children from a class of 11 to experiment on. Suppose 4 of the children are male and 7 are female. How many different way could 5 children be chosen out of the 11? How many different ways could 3 male children and 2 female children be chosen for the experiment. What is the probability that 3 male children and 2 female children be chosen for the experiment if the selection was done...
Water Land b/w independent measures t test One group of participants was expected to perform a memory task under water and a second group of participants was expected to perform a memory task on land. 82 84 76 85 86 The data for memory accuracy scores are shown to the right in column Rand S, respectively) 83 80 75 79 78 86 82 Determine the following: 82 82 84 86 Use the appropriate two-tailed statistical test and an alpha level...
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