Question

In: Statistics and Probability

A physiological psychologist wanted to know if there is a gender difference in consuming a sweet...

A physiological psychologist wanted to know if there is a gender difference in consuming a sweet taste in rats. Ten male and ten female rats were allowed to lick on a tube of saccharin-sweetened water for ten minutes. The number of licks were 12, 11, 8, 9, 14, 10, 8, 9, 11, and 12 for the female rats and 6,7, 9, 5, 7, 9, 7, 8, 9, and 10 for the male rats.

Is there a significant difference between males and females in licks of saccharin water?

  • What is the IV? How many levels?
  • What is the DV
  • Construct a frequency distribution with that data above for each group (male/female)
  • What are the means of the 2 groups?
  • What is the df?
  • What type of t test needs to be conducted?
  • What is the calculated t statistic?
  • Is this a one tail or 2 tail test?

Are the findings significant at alpha .05? Explain what this means.

Solutions

Expert Solution


Related Solutions

A personality psychologist wanted to know if men and women differ in their sympathy and compassion...
A personality psychologist wanted to know if men and women differ in their sympathy and compassion expressed to others. She gave a personality test to randomly selected men and women. One component of the test measured empathy, with higher scores indicating more empathy. The data are shown in the spreadsheet. Carry out a t-test on H0: μ M = μ W (population means for Men and Women are the same) vs. Ha: μ M ≠ μ W (population means for...
A behavioral psychologist wanted to know if making a public commitment to lose weight will make...
A behavioral psychologist wanted to know if making a public commitment to lose weight will make a difference in how much weight is actually lost. He obtained 14 volunteers who wanted to lose weight and randomly assigned them to one of two groups. The “commitment” group met together and each participant stood and announced an intent to lose weight and signed a pledge to adhere to the diet and exercise regimen. The “control” was placed on the same diet and...
A psychologist wanted to know if students in her class were more likely to cheat if...
A psychologist wanted to know if students in her class were more likely to cheat if they were low achievers. She divided her 60 students into three groups (low, middle, and high) based on their mean course-testings score on the previous three tests. She then asked them to rate how likely they were to cheat on an course-testings if the opportunity presented itself with very limited chance for consequences. The students rated their desire to cheat on a scale ranging...
A psychologist wanted to know if students in her class were more likely to cheat if...
A psychologist wanted to know if students in her class were more likely to cheat if they were low achievers. She divided her 60 students into three groups (low, middle, and high) based on their mean course-testings score on the previous three tests. She then asked them to rate how likely they were to cheat on a course-testings if the opportunity presented itself with very limited chance for consequences. The students rated their desire to cheat on a scale ranging...
A psychologist wanted to know if students in her class were more likely to cheat if...
A psychologist wanted to know if students in her class were more likely to cheat if they were low achievers. She divided her 60 students into three groups (low, middle, and high) based on their mean course-testings score on the previous three tests. She then asked them to rate how likely they were to cheat on a course-testings if the opportunity presented itself with very limited chance for consequences. The students rated their desire to cheat on a scale ranging...
A psychologist wanted to know if students in her class were more likely to cheat if...
A psychologist wanted to know if students in her class were more likely to cheat if they were low achievers. She divided her 60 students into three groups (low, middle, and high) based on their mean course score on the previous three course-testings. She then asked them to rate how likely they were to cheat on an course-testings if the opportunity presented itself with very limited chance for consequences. The students rated their desire to cheat on a scale ranging...
A psychologist wanted to know if students in her class were more likely to cheat if...
A psychologist wanted to know if students in her class were more likely to cheat if they were low achievers. She divided her 60 students into three groups (low, middle, and high) based on their mean course-testings score on the previous three tests. She then asked them to rate how likely they were to cheat on a course-testings if the opportunity presented itself with very limited chance for consequences. The students rated their desire to cheat on a scale ranging...
A behavioral psychologist wanted to know if making a public commitment to lose weight will make...
A behavioral psychologist wanted to know if making a public commitment to lose weight will make a difference in how much weight is actually lost. He obtained 14 volunteers who wanted to lose weight and randomly assigned them to one of two groups. The “commitment” group met together and each participant stood and announced an intent to lose weight and signed a pledge to adhere to the diet and exercise regimen. The “control” was placed on the same diet and...
A researcher wanted to know if there is an age difference in the amount of time...
A researcher wanted to know if there is an age difference in the amount of time spent on social media. They collected data from 8 teenagers (13-18 years old) and 8 young adults (21-26 years old); they measured the average number of hours spent using all social media platforms over the course of a day. The mean hours spent on social media for teenage participants was 2.9750 with a variance of 1.0630 and the mean hours spent on social media...
A developmental psychologist wanted to know whether watching videos aimed at increasing the cognitive abilities of...
A developmental psychologist wanted to know whether watching videos aimed at increasing the cognitive abilities of toddlers (e.g., Baby Einstein) really helped.  He recruited 30 families from the local community with a child from 18 months to 24 months in the home.    Parents in the experimental group were instructed to have their toddler watch the video for 10 minutes per day for 4 weeks.   Parents in the control condition spent the same amount of time playing with their toddlers.    The psychologist was also interested...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT