Compute the Pearson Correlation Coefficient for these data. r = The correlation is: Medium and negative Large and negative Large and positive Medium and positive The alternative hypothesis in words for a two-tailed test is The correlation between the scores on the 7-minute screen test and the scores on the cognitive series is significant The correlation between the scores on the 7-minute screen test and the scores on the cognitive series is not significant The correlation between the scores on the 7-minute screen test and the scores on the cognitive series is less than zero The correlation between the scores on the 7-minute screen test and the scores on the cognitive series is greater than zero The null hypothesis in symbols for a two-tailed test is H0: ρ = 0 H0: ρ ≠ 0 H0: r = 0 H0: r ≠ 0 If we use a two-tailed test with α = .01, the critical r values are: ±0.833 ±0.874 ±0.754 ±0.669 Your decision is: Reject the null hypothesis and conclude that there is a significant correlation between the scores on the 7-minute screen test and the scores on the cognitive series Fail to reject the null hypothesis and conclude that there is a significant correlation between the scores on the 7-minute screen test and the scores on the cognitive series Reject the null hypothesis and conclude that there is no significant correlation between the scores on the 7-minute screen test and the scores on the cognitive series Fail to reject the null hypothesis and conclude that there is no significant correlation between the scores on the 7-minute screen test and the scores on the cognitive series

Name: Identifying individuals with a high risk of Alzheimer’s disease usuall
Uploaded: 2024-03-20T07:07:12.000Z
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Description: Identifying individuals with a high risk of Alzheimer’s disease usually involves a long series of cognitive tests. However, researchers have developed a 7-Minute Screen, which is a quick and easy way to accomplish the same goal. The question is wheth

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Identifying individuals with a high risk of Alzheimer’s disease usually involves a long series of cognitive tests. However, researchers have developed a 7-Minute Screen, which is a quick and easy way to accomplish the same goal. The question is whether the 7-Minute Screen is as effective as the complete series of tests. To address this question, Ijuin et al. (2008) administered both tests to a group of patients and compared the results. The following data represent results similar to those obtained in the study.

Patient	7-Minute Screen	Cognitive Series
A	3	7
B	7	15
C	4	14
D	5	13
E	7	9
F	5	15
G	11	25

Compute the Pearson Correlation Coefficient for these data.

r =

The correlation is:

Medium and negative

Large and negative

Large and positive

Medium and positive

The alternative hypothesis in words for a two-tailed test is

The correlation between the scores on the 7-minute screen test and the scores on the cognitive series is significant

The correlation between the scores on the 7-minute screen test and the scores on the cognitive series is not significant

The correlation between the scores on the 7-minute screen test and the scores on the cognitive series is less than zero

The correlation between the scores on the 7-minute screen test and the scores on the cognitive series is greater than zero

The null hypothesis in symbols for a two-tailed test is

H0: ρ = 0

H0: ρ ≠ 0

H0: r = 0

H0: r ≠ 0

If we use a two-tailed test with α = .01, the critical r values are:

±0.833

±0.874

±0.754

±0.669

Your decision is:

Reject the null hypothesis and conclude that there is a significant correlation between the scores on the 7-minute screen test and the scores on the cognitive series

Fail to reject the null hypothesis and conclude that there is a significant correlation between the scores on the 7-minute screen test and the scores on the cognitive series

Reject the null hypothesis and conclude that there is no significant correlation between the scores on the 7-minute screen test and the scores on the cognitive series

Fail to reject the null hypothesis and conclude that there is no significant correlation between the scores on the 7-minute screen test and the scores on the cognitive series

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