Question: (a) Suppose n = 6 and the sample correlation coefficient is r = 0.90. Is r significant at the 1% level of significance (based on

(a) Suppose n = 6 and the sample correlation coefficient is r = 0.90. Is r significant at the 1% level of significance (based on a two-tailed test)?
(b) Suppose n = 10 and the sample correlation coefficient is r = 0.90. Is r signify cant at the 1% level of significance (based on a two-tailed test)?
(c) Explain why the test results of parts (a) and (b) are different even though the sample correlation coefficient r = 0.90 is the same in both parts. Does it appear that sample size plays an important role in determining the significance of a correlation coefficient? Explain.

Step by Step Solution

★★★★★

3.43 Rating (175 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

a 001 df n 2 6 2 4 From Table 4 of the Appendix 4129 falls between entries 3747 and 4604 Use ... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Document Format (1 attachment)

785-M-S-S-I (4835).docx

120 KBs Word File

Students Have Also Explored These Related Statistics Questions!

Suppose that data are obtained from 20 pairs of (x, y) and the sample correlation coefficient is 0.8. (a) Test the hypothesis that H 0 : = 0 against H 1 : 0 with = 0.05. Calculate the P-value....

Suppose that x and y are positive variables and that a sample of n pairs results in r 1. If the sample correlation coefficient is computed for the (x, y2) pairs, will the resulting value also be...

Suppose that we have n pairs of observations (xi, yi) such that the sample correlation coefficient r is unity (approximately). Now let zi = y2i and consider the sample correlation coefficient for the...

(@) Suppose n = 6 and the sample correlation coefficient is r = 0.896. Is / significant at the 1% level of significance (based on a two-tailed test)? (Round your answers to three decimal places.) 1=...

Q #1 10. [0.44/1 Points] DETAILS PREVIOUS ANSWERS BBUNDERSTAT12 9.3.013.MI.S. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER (a) Suppose n = 6 and the sample correlation coefficient is r = 0.888. Is r...

1.) In the least-squares line= 5 +15 x , what is the marginal change infor each unit change in x ? ______ 3.) The following Minitab display gives information regarding the relationship between the...

can you please send the answer a little bit faster please PRACTICE ANOTHER (a) Suppose n = 6 and the sample correlation coefficient is r = 0.904. Is r significant at the 1% level of significance...

In this problem, we use Table 4-6 to explore the significance of r based on different sample sizes. (a) Is a sample correlation coefficient r = 0.820 significant at the = 0.01 level based on a...

Homework: Sec 9.1 Hw Score: 92.86%, 18.57 of 20 points 9 Points: 0.29 of 1 Question 11, 9.1.27-T Part 5 of5 Question list I 0 Question 5 0 Question 6 0 Question 7 0 Question 8 0 Question 9 0 Question...

Light is moving in a glass slab of refractive index n = 3. If the glass slab is moving along (positive).x-axis of another frame S, with speed u=, then the ratio of speed of light as viewed from the...

Below is a table showing 100-meter finish times (in seconds) for 35 competitors at the NCAA Division III Track and Field Championships recently held in Muncie, Indiana. a. Create a stem-and-leaf...

8. Which of the following is true about management by exception? a. Only large favorable variances are investigated b. Management by exception is an economical approach to cost control c. Management...

Which sports do banks usually choose?

Statistical Literacy Does a raw score less than the mean correspond to a positive or negative standard score? What about a raw score greater than the mean?

Statistical Literacy What does a standard score measure?

Uniform Distribution: Measurement Errors Measurement errors from instruments are often modeled using the uniform distribution (see Problem 12). To determine the range of a large public address...

Problem 2 8 - 1 2 ( Future Value of an Annuity ) Future Value of an Annuity Find the future value of the following annuities. The first payment in these annuities is made at the end of Year 1 , so...

Adam Nichols, a former disc golf star, operates Marigold Corp.. At the beginning of the current season on April 1, the ledger of Marigold Corp. showed Cash $1,800, Inventory $2,600, and Common Stock...

Siva, Inc., imposes a payback cutoff of three years for its international investment projects. Year Cash Flow (A) Cash Flow (B) 0 $ 65,000 $ 75,000 1 25,500 17,500 2 33,000 20,500 3 23,500 31,000 4...