Question

For a sample of 50 participants, SP = -20, SSX = 20, and SSY = 45...

For a sample of 50 participants, SP = -20, SSX = 20, and SSY = 45 . Given a Type I error rate of .05, test the hypothesis that the correlation is zero (use the 4 steps). What is the value of the coefficient of determination?

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

The solution to this problem is given by

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
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...
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 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...
A hypothesis test using a Pearson’s correlation coefficient is an example of what? A nonparametric statistic...
A hypothesis test using a Pearson’s correlation coefficient is an example of what? A nonparametric statistic A descriptive statistic An inferential statistic A power statistic 1 points    QUESTION 48 What would the scatter plot show for data that produce a Pearson correlation of r = +0.88? Points clustered close to a line that slopes down to the right Points clustered close to a line that slopes up to the right Points widely scattered around a line that slopes up...
Research Scenario #1 A researcher hypothesizes that zylex, a new antidepressant, will affect concentration. It is...
Research Scenario #1 A researcher hypothesizes that zylex, a new antidepressant, will affect concentration. It is known that scores on a standardized concentration test is normally distributed with a µ= 50 and a σ= 12. A random sample of n=16 participants, aged 19-35, are chosen from the State of New Jersey. The sample is put on a six month dosage plan of zylex. After six months, all the participants are given a standardized concentration test. The researcher records the data...
Problem I. An experiment was done with 30 participants to test the effect of the type...
Problem I. An experiment was done with 30 participants to test the effect of the type of attachment style that one has (i.e., secure, anxious, or avoidant) on how long one (in years) is married to her/his spouse. Higher scores below indicate a greater number of years. Use an alpha level of .05 (p = .05).                Secure                  Anxious               Avoidant                M1 = 10                M2 = 9                  M3= 5                   k =                               n1 = 10                  n2 =...
Problem I. An experiment was done with 30 participants to test the effect of the type...
Problem I. An experiment was done with 30 participants to test the effect of the type of attachment style that one has (i.e., secure, anxious, or avoidant) on how long one (in years) is married to her/his spouse. Higher scores below indicate a greater number of years. Use an alpha level of .05 (p = .05).                Secure                  Anxious               Avoidant                M1 = 10                M2 = 9                  M3= 5                   k =                               n1 = 10                  n2 =...
Consider the following hypothesis test: H 0: 50 H a: > 50 A sample of 50...
Consider the following hypothesis test: H 0: 50 H a: > 50 A sample of 50 is used and the population standard deviation is 9. Use the critical value approach to state your conclusion for each of the following sample results. Use = .05. a. With = 52.5, what is the value of the test statistic (to 2 decimals)? Can it be concluded that the population mean is greater than 50? b. With = 51, what is the value of...
Consider the following hypothesis test: H 0:   50 H a:  > 50 A sample of 70 is used...
Consider the following hypothesis test: H 0:   50 H a:  > 50 A sample of 70 is used and the population standard deviation is 6. Use the critical value approach to state your conclusion for each of the following sample results. Use  = .05. a. With  = 52.5, what is the value of the test statistic (to 2 decimals)? Can it be concluded that the population mean is greater than 50? SelectYesNoItem 2 b. With  = 51, what is the value of the test statistic...
. Consider the following hypothesis test: H0 : µ ≥ 20 H1 : µ < 20...
. Consider the following hypothesis test: H0 : µ ≥ 20 H1 : µ < 20 A sample of 40 observations has a sample mean of 19.4. The population standard deviation is known to equal 2. (a) Test this hypothesis using the critical value approach, with significance level α = 0.01. (b) Suppose we repeat the test with a new significance level α ∗ > 0.01. For each of the following quantities, comment on whether it will change, and if...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT