STAT. FOR BEHAVIORAL SCIENCES WEBASSIGN
3rd Edition
ISBN: 9781544317823
Author: PRIVITERA
Publisher: Sage Publications
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Chapter 1, Problem 28PR
To determine
Identify the type of definition, according to the authors, is need for the term curiosity.
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The number of successes and the sample size for a simple random sample from a population are given below.
x = 6, n = 200, Ho:p= 0.02, Hạ: p# 0.02, a = 0.05
a. Determine the sample proportion.
b. Decide whether using the one-proportion z-test is appropriate.
c. If appropriate, use the one-proportion z-test to perform the specified hypothesis test.
Click here to view a table of areas under the standard normal curve for negative values of z.
Click here to view a table of areas under the standard normal curve for positive values of z.
a. The sample proportion is.
(Type an integer or a decimal. Do not round.)
Some researchers investigate whether playing construction toys helps children to develop spatial intelligence. The study involved 153 randomly selected preschool children.
Answer the following questions:
i)What is the explanatory variable in this research?
ii)What is the response variable in this research?
iii)Is this relationship likely to be an association or causation? Explain your answer using a couple of sentences.
Would observations or interviews be more appropriate to research the following topic?How bullying affects gay teensO ObservationsO Interviews
Chapter 1 Solutions
STAT. FOR BEHAVIORAL SCIENCES WEBASSIGN
Ch. 1.2 - Prob. 1.1LCCh. 1.2 - Prob. 1.2LCCh. 1.2 - Prob. 1.3LCCh. 1.2 - Prob. 1.4LCCh. 1.3 - Prob. 2.1LCCh. 1.3 - Prob. 2.2LCCh. 1.3 - Prob. 2.3LCCh. 1.4 - Prob. 3.1LCCh. 1.4 - Prob. 3.2LCCh. 1.4 - Prob. 3.3LC
Ch. 1.4 - Prob. 3.4LCCh. 1.5 - Prob. 4.1LCCh. 1.5 - Prob. 4.2LCCh. 1.5 - Prob. 4.3LCCh. 1.5 - Prob. 4.4LCCh. 1.5 - Prob. 4.5LCCh. 1 - Prob. 1FPCh. 1 - Prob. 2FPCh. 1 - Prob. 3FPCh. 1 - Prob. 4FPCh. 1 - Prob. 5FPCh. 1 - Prob. 6FPCh. 1 - Prob. 7FPCh. 1 - Prob. 8FPCh. 1 - Prob. 9FPCh. 1 - Prob. 10FPCh. 1 - Prob. 11CAPCh. 1 - Prob. 12CAPCh. 1 - Prob. 13CAPCh. 1 - Prob. 14CAPCh. 1 - Prob. 15CAPCh. 1 - Prob. 16CAPCh. 1 - Prob. 17CAPCh. 1 - Prob. 18CAPCh. 1 - Prob. 19CAPCh. 1 - Prob. 20CAPCh. 1 - Prob. 21CAPCh. 1 - Prob. 22CAPCh. 1 - Prob. 23CAPCh. 1 - Prob. 24CAPCh. 1 - Prob. 25CAPCh. 1 - Prob. 26CAPCh. 1 - Prob. 27PRCh. 1 - Prob. 28PRCh. 1 - Prob. 29PRCh. 1 - Prob. 30PRCh. 1 - Prob. 31PRCh. 1 - Prob. 32PR
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- “The rapid growth of video game popularity has generated concern among practitioners, parents, scholars, and politicians,” wrote researchers Hope M. Cummings and Elizabeth A. Vandewater. In their study, Cummings and Vandewater measured the time adolescents spent playing video games as well as time spent doing other activities, such as interacting with family and friends, reading or doing homework, or playing sports. [Source: Cummings, H., & Vandewater, E. (2007). Relation of adolescent video game play to time spent in other activities. Archives of Pediatrics & Adolescent Medicine, 161(7), 684–689.] After reading about the study conducted by Cummings and Vandewater, you decide to conduct a similar study among a sample of 10 teenage girls. You ask the girls to keep a log of their activities for a day. You want to test whether the amount of time girls spend playing video games is correlated with the amount of time they read for pleasure. You realize that because some of the…arrow_forward“The rapid growth of video game popularity has generated concern among practitioners, parents, scholars, and politicians,” wrote researchers Hope M. Cummings and Elizabeth A. Vandewater. In their study, Cummings and Vandewater measured the time adolescents spent playing video games as well as time spent doing other activities, such as interacting with family and friends, reading or doing homework, or playing sports. [Source: Cummings, H., & Vandewater, E. (2007). Relation of adolescent video game play to time spent in other activities. Archives of Pediatrics & Adolescent Medicine, 161(7), 684–689.] After reading about the study conducted by Cummings and Vandewater, you decide to conduct a similar study among a sample of 10 teenage girls. You ask the girls to keep a log of their activities for a day. You want to test whether the amount of time girls spend playing video games is correlated with the amount of time they read for pleasure. You realize that because some of the…arrow_forwardIn a study examining the effect of humor on interpersonal attractions, McGee and Shevlin (2009) found that a man's sense of humor had significant effect on how he was perceieved by woman. In the study, female college students were given brief descriptions of a po tential romantic partner and then rated the attractiveness of the male on a scale from 1 (low) to 7 (high). The fictitious male was described positively as being single , ambitious, and having good job prospects. In one dition, the description also said that he had a great sense of humor. The results showed that the description was rated significantly higher when "a sense of humor" was included. To further examine this effect, a researcher selected a sample of n = 16colle college males and asked them to read a brief description of a female and then rate the attractiveness of the woman in the description . The description had been used in previous research but was modified by adding a statement describing a good sense of humor…arrow_forward
- It appears that there is some truth to the old adage “That which doesn’t kill us makes us stronger.” Seery, Holman, and Silver (2010) found that indi- viduals with some history of adversity report better mental health and higher well-being compared to people with little or no history of adversity. In an attempt to examine this phenomenon, a researcher surveys a group of college students to determine the negative life events that they experienced in the past 5 years and their current feeling of well-being. For n = 18 participants with 2 or fewer negative experi- ences, the average well-being score is M = 42 with SS = 398, and for n = 16 participants with5 to 10 negative experiences the average score is M = 48.6 with SS = 370.a. Is there a significant difference between the two populations represented by these two samples? Use a two-tailed test with α = .05arrow_forwardWas the study an experiment (see Chapter 11) or quasi-experiment (see Chapter 12)? How do you know? Levine, L. J., Burgess, S. L., & Laney, C. (2008). Effects of discrete emotions on young children’s suggestibility. Developmental Psychology, 44, 681–694. Purpose of the Study. Levine, Burgess, and Laney (2008) conducted a study to investigate the effect of children’s emotions on their memory abilities and the likelihood that their memory accuracy would decline due to leading questions about their memories for a story. This knowledge may be useful in determining the conditions under which children’s memories are less likely to be accurate, which is important in various applied situations, such as when children must testify in court about something they experienced. Method of the Study. Four- and six-year-old children participated in the study. Each child was presented with three stories. A task at the end of each story was designed to elicit happiness, sadness, or anger. This…arrow_forwardIn a study examining the effect of humor on interpersonal attractions, McGee and Shevlin (2009) found that a man’s sense of humor had a significant effect on how he was perceived by women. In the study, female college students were given brief descriptions of a potential romantic partner and then rated the attractiveness of the male on a scale from 1 (low) to 7 (high). The fictitious male was described positively as being single, ambitious, and having good job prospects. In one condition, the description also said that he had a great sense of humor. The results showed that the description was rated significantly higher when “a sense of humor” was included. To examine this effect further, a researcher selected a sample of n = 16 college males and asked them to read a brief description of a female and then rate the attractiveness of the woman in the description. The description had been used in previous research but was modified by adding a statement describing a good sense of humor.…arrow_forward
- In this same passage, answer the third question to the problem.arrow_forwardA group of boys believe that there is a relationship between the act of sending flowers to a girl and texts received as a result. A study was carried out in which a sample of girls were asked whether they received any flowers and how many texts they sent in response. a)What type of variable is the explanatory variable? Quantitative Categorical b) What type of variable is “number of texts sent in response?” Categorical Quantitative c)What type of visual display should be used to summarize this data? Bar chart Side-by-side boxplots Histogram Dot plotarrow_forwardnumber 24arrow_forward
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