A psychologist is interested in knowing whether adults who were bullied as children differ from the...
A psychologist is interested in knowing whether adults who were
bullied as children differ from the general population in terms of
their empathy for others. On a questionnaire designed to measure
empathy, the mean score for the general population is 95.71. Random
sampling of 76 scores obtained from individuals who were bullied
yielded a mean of 75.37 and a standard deviation of 22.87.
(Use these numbers only for this question!)
Suppose you want to calculate the 99% confidence interval.
The mean you will use for this calculation is:
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A psychologist is interested in knowing whether adults who were
bullied as children differ from the...
A psychologist is interested in knowing whether adults who were bullied as children differ from the...
A psychologist is interested in knowing whether adults who were bullied as children differ from the general population in terms of their empathy for others. On a questionnaire designed to measure empathy, the mean score for the general population is 53.48. Random sampling of 25 scores obtained from individuals who were bullied yielded a mean of 97.86 and a standard deviation of 5.44. Calculate the 99% confidence interval. Steps: As you know, two values will be required to complete the...
A psychologist is interested in knowing whether adults who were bullied as children differ from the...
A psychologist is interested in knowing whether adults who were bullied as children differ from the general population in terms of their empathy for others. On a questionnaire designed to measure empathy, the mean score for the general population is 30.6. Random sampling of 25 scores obtained from individuals who were bullied yielded a sample mean of 39.5 and a sample standard deviation of 6.6. Test at the .05 level of significance. Suppose that the value of your calculated (obtained)...
Researchers were interested in the teachers' perceptions of physical activity in children. They asked a sample...
Researchers were interested in the teachers' perceptions of physical activity in children. They asked a sample of 10 elementary school grade 2 teachers to rate the physical activity level of the children in their class by filling in a questionnaire which asked about specific activities that they witness children participating in during a typical week. The questionnaire resulted in a class score out of 50 (scores could range from 0 to 50). The following is the data obtained by the...
Sleep apnea is a disorder characterized by pauses in breathing during sleep. Children who suffer from untreated sleep...
Sleep apnea is a disorder characterized by pauses in breathing during sleep. Children who suffer from untreated sleep apnea often have behavior problems, including hyperactivity, inattention, and aggression. A common treatment for pediatric sleep apnea is the surgical removal of enlarged tonsils and adenoids that are obstructing the airways Suppose researchers at a sleep clinic are interested in the effect of surgical treatment for pediatric sleep apnea on aggressive behavior. They study 11 children without sleep apnea, 11 children with...
Sleep apnea is a disorder characterized by pauses in breathing during sleep. Children who suffer from...
Sleep apnea is a disorder characterized by pauses in breathing during sleep. Children who suffer from untreated sleep apnea often have behavior problems, including hyperactivity, inattention, and aggression. A common treatment for pediatric sleep apnea is the surgical removal of enlarged tonsils and adenoids that are obstructing the airways. Suppose researchers at a sleep clinic are interested in the effect of surgical treatment for pediatric sleep apnea on hyperactive behavior. They study 11 children without sleep apnea, 11 children with...
i need help please 20. A psychologist is interested in the conditions that affect the number...
i need help please
20. A psychologist is interested in the conditions that affect the number of dreams per month that people report in which they are alone. We will assume that based on extensive previous research, it is known that in the general population the number of such dreams per month follows a normal curve, with u = 5 and 0 = 4. The researcher wants to test the prediction that the number of such dreams will be greater...
Sleep apnea is a disorder characterized by pauses in breathing during sleep. Children who suffer from...
Sleep apnea is a disorder characterized by pauses in breathing during sleep. Children who suffer from untreated sleep apnea often have behavior problems, including hyperactivity, inattention, and aggression. A common treatment for pediatric sleep apnea is the surgical removal of enlarged tonsils and adenoids that are obstructing the airways. Suppose researchers at a sleep clinic are interested in the effect of surgical treatment for pediatric sleep apnea on inattentive behavior. They study 11 children without sleep apnea, 11 children with...
2. Hypothesis Testing You are interested in knowing whether the share of people who smoke is...
2. Hypothesis Testing You are interested in knowing whether the share of people who smoke is the same in California and Florida. You collect a random sample of 1,000 California residents and 900 Florida residents. You ask each of them whether they smoke or not and create a binary (dummy) variable smoke if they say "Yes" and smoke -0 if they say "No" a) Write the Stata command you would use to find the mean and standard deviation in smokers...
Suppose that 14 children, who were learning to ride two-wheel bikes, were surveyed to determine how...
Suppose that 14 children, who were learning to ride two-wheel bikes, were surveyed to determine how long they had to use training wheels. It was revealed that they used them an average of seven months with a sample standard deviation of two months. Assume that the underlying population distribution is normal. a.) Construct a 99% confidence interval for the population mean length of time using training wheels. b.) (iii) Calculate the error bound. (Round your answer to two decimal places.)
A psychologist was interested in the effects of different fear information on children’s beliefs about an animal. Three groups of children were shown a picture of an animal that they had never seen be...
A psychologist was interested in the effects of different fear information on children’s beliefs about an animal. Three groups of children were shown a picture of an animal that they had never seen before (a quoll). Then one group was told a negative story (in which the quoll is described as a vicious, disease-ridden bundle of nastiness that eats children’s brains), one group a positive story (in which the quoll is described as a harmless, docile creature who likes nothing...
Sleep apnea is a disorder characterized by pauses in breathing during sleep. Children who suffer from untreated sleep apnea often have behavior problems, including hyperactivity, inattention, and aggression. A common treatment for pediatric sleep apnea is the surgical removal of enlarged tonsils and adenoids that are obstructing the airways Suppose researchers at a sleep clinic are interested in the effect of surgical treatment for pediatric sleep apnea on aggressive behavior. They study 11 children without sleep apnea, 11 children with...
Sleep apnea is a disorder characterized by pauses in breathing during sleep. Children who suffer from untreated sleep apnea often have behavior problems, including hyperactivity, inattention, and aggression. A common treatment for pediatric sleep apnea is the surgical removal of enlarged tonsils and adenoids that are obstructing the airways. Suppose researchers at a sleep clinic are interested in the effect of surgical treatment for pediatric sleep apnea on hyperactive behavior. They study 11 children without sleep apnea, 11 children with...
i need help please
20. A psychologist is interested in the conditions that affect the number of dreams per month that people report in which they are alone. We will assume that based on extensive previous research, it is known that in the general population the number of such dreams per month follows a normal curve, with u = 5 and 0 = 4. The researcher wants to test the prediction that the number of such dreams will be greater...
Sleep apnea is a disorder characterized by pauses in breathing during sleep. Children who suffer from untreated sleep apnea often have behavior problems, including hyperactivity, inattention, and aggression. A common treatment for pediatric sleep apnea is the surgical removal of enlarged tonsils and adenoids that are obstructing the airways. Suppose researchers at a sleep clinic are interested in the effect of surgical treatment for pediatric sleep apnea on inattentive behavior. They study 11 children without sleep apnea, 11 children with...
2. Hypothesis Testing You are interested in knowing whether the share of people who smoke is the same in California and Florida. You collect a random sample of 1,000 California residents and 900 Florida residents. You ask each of them whether they smoke or not and create a binary (dummy) variable smoke if they say "Yes" and smoke -0 if they say "No" a) Write the Stata command you would use to find the mean and standard deviation in smokers...
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