Question

A researcher was interested in the relationship between an average daily time spent on social media...

A researcher was interested in the relationship between an average daily time spent on social media (i.e., X variable) and social anxiety (i.e., Y variable).

The data collected on a sample of n = 82  undergraduate students produced the following results:        SSx= 49, SSY= 36, SP = 11, MX = 8, MY = 15.

A. Is there a significant correlation between an average daily time spent on social media and social anxiety? Use 2-tailed test, p < .05 to answer this research question.

  • Formulate the null and alternative hypothesis.
  • Compute the Person correlation, r
  • Find the r critical for this study.
  • Make a decision about the null hypothesis.
  • Write the conclusion and report the Pearson's correlation outcome in the APA style format.

B. Find the regression equation for predicting social anxiety (Y variable) from the average daily time spent on social media (X variable).

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A researcher wants to examine the relationship between time spend on social media (variable X) and...
A researcher wants to examine the relationship between time spend on social media (variable X) and loneliness (variable Y) in young adults. A randomly sample of n = 72 young adults was asked how much time in average they spend on social media each day and how lonely day feel on a typical day. The partial computations of collected data produced the following results:                                             SP = 3.5     MX = 5   SSx = 16    MY = 20    SSY= 9 A. Based on these...
A researcher was interested in the relationship between the reported stress level (variable X) and performance...
A researcher was interested in the relationship between the reported stress level (variable X) and performance on memory test (variable Y). The data collected on a sample of n = 62  undergraduate students produced the following results: MX = 4, SSx = 30, MY = 6, SSY= 90, and SP = - 15 A. Is there a significant correlation between stress level and memory performance? Assume 2-tailed test, p < .05. For full credit your answer should include: Null and alternative...
A researcher measures the relationship between sleep medication use (times used per week) and time spent...
A researcher measures the relationship between sleep medication use (times used per week) and time spent working (in hours per week). Are they significantly correlated? Conduct a hypothesis test at the .05 significance level. Sleep Medication Use Time Spent Working Deviation Scores Sum of Squares X Y X-Mx Y-MY (X-Mx) (Y-MY) (X-Mx)2 (Y-MY)2 8 18 3 40 6 20 2 32 Mx= MY = SSXY= SSX= SSY= Hypotheses: Critical Value: r = Decision:
A researcher measures the relationship between education (in years) and investment gains (in thousands of dollars)....
A researcher measures the relationship between education (in years) and investment gains (in thousands of dollars). Are they significantly correlated? Conduct a hypothesis test at the .05 significance level. Education Investment Gains Deviation Scores Sum of Squares X Y X-Mx Y-MY (X-Mx) (Y-MY) (X-Mx)2 (Y-MY)2 14 8 12 11 9 10 18 14 Mx= MY = SSXY= SSX= SSY= Hypotheses: Critical Value: r = Decision:
1.- A researcher obtains t = 2.25 for a repeated-measures study using a sample of n...
1.- A researcher obtains t = 2.25 for a repeated-measures study using a sample of n = 10 participants. Based on this t value, what is the correct decision for a two-tailed test? a. ​Reject the null hypothesis with α = .05 but not with α = .01 b. ​Reject the null hypothesis with both α = .05 and α = .01 c. ​Fail to reject the null hypothesis with both α = .05 and α = .01 d. ​Cannot...
One researcher claims the national average time spent on social media is 4 hours per week....
One researcher claims the national average time spent on social media is 4 hours per week. A random sample of 404 individuals showed a sample of 4.2 hours per week. If national standard deviation is known to be 1.8, test if the true national average is greater than the researcher’s claim when α=.05.
A researcher records the amount of time (in minutes) that parent-child pairs spent on social networking...
A researcher records the amount of time (in minutes) that parent-child pairs spent on social networking sites to test whether they show any generational differences. From the following findings reported in APA format, interpret these results. Parents spent significantly less time on social networking sites compared to their children (MD = 42 minutes), t(29) = 3.225, p < 0.05, d = 0.75. State the research design used (repeated measures or matched pairs). -repeated measures design -matched pairs design    State...
A researcher records the amount of time (in minutes) that parent-child pairs spent on social networking...
A researcher records the amount of time (in minutes) that parent-child pairs spent on social networking sites to test whether they show any generational differences. From the following findings reported in APA format, interpret these results. Parents spent significantly less time on social networking sites compared to their children (MD = 42 minutes), t(29) = 3.343, p < 0.05, d = 0.61. State the research design used (repeated measures or matched pairs). repeated measures designmatched pairs design     State the sample...
Because of the popularity of social media among college students, there is a great deal of...
Because of the popularity of social media among college students, there is a great deal of interest in the relation between Facebook use and academic performance. To investigate this relation, an extensive study of over 1700 students was conducted at a public university in the northeast. For one semester the time (in minutes) spent each day on Facebook was recorded for each student. The students also agreed to allow their GPA for that semester to be used in the study....
A researcher measures the relationship between the number of interruptions during a class and time spent...
A researcher measures the relationship between the number of interruptions during a class and time spent "on task" (in minutes). Answer the following questions based on the results provided. Number of Interruptions Time Spent "On Task" 11 18 5 37 9 18 4 31 Part (a) Compute the Pearson correlation coefficient. (Round your answer to three decimal places.) Part (b) Multiply each measurement of interruptions times 3 and recalculate the correlation coefficient. (Round your answer to three decimal places.) Part...