Question
Asked Oct 22, 2019
1 views

Data is collected on 30 adults to see if there is a correlation between age and amount donated to a political party. If r=0.98, atht e 0.05 level is there a correlation between age and donations? Show work.

check_circle

Expert Answer

Step 1

Introduction:

Suppose ρ is the true population correlation coefficient between two variables, and r is the observed sample correlation coefficient.

In order to test whether there is statistically significant correlation between the two variables, based on the sample observations, the null and alternative hypotheses are:

H0: ρ = 0, vs. H1: ρ ≠ 0.

The test statistic for the test is:

t = [r √ (n – 2)] / √ (1 ...

Want to see the full answer?

See Solution

Check out a sample Q&A here.

Want to see this answer and more?

Solutions are written by subject experts who are available 24/7. Questions are typically answered within 1 hour.*

See Solution
*Response times may vary by subject and question.
Tagged in

Math

Statistics

Hypothesis Testing

Related Statistics Q&A

Find answers to questions asked by student like you
Show more Q&A
add
question_answer

Q: ​An independent-measures research study with n = 5 participants in each treatment produces sample va...

A: Given:Sample size (n)=5Sample variance is 8 and 10, and, means difference is 2.Explanation:The formu...

question_answer

Q: A rare form of malignant tumor occurs in 11 children in a​ million, so its probability is 0.000011. ...

A: Thank you for posting the question. Since you have posted a question with more than 3 parts, we have...

question_answer

Q: Use the data in the following​ table, which lists​ drive-thru order accuracy at popular fast food ch...

A: Given Data

question_answer

Q: What is the average daily sale expected? What is the standard deviation? Give two reasons why the ta...

A: Given data and calculation for average and standard deviation is shown below

question_answer

Q: 6.3.19           Assume that adults have IQ scores that are normally distributed w...

A: 6.3.19)From the given information, let us define the random variable X as the IQ scores follows norm...

question_answer

Q: Assume that adults have IQ scores that are normally distributed with a mean of mu equals 100μ=100 an...

A: The probability that a randomly selected adult has in IQ between 84 and 116 is obtained below:Let X ...

question_answer

Q: 4.A college student is interested in whether there is a difference between male and female students ...

A: 1.Here the samples are drawn from the normal population and the population standard deviations are u...

question_answer

Q: The lifetime of a particular component is normally distributed, with a mean of 1000 hours, and a sta...

A: From the given information, let us define the random variable X as lifetime of a particular componen...

question_answer

Q: A moving target at a police academy target range can be hit 78% of the time by a particular individu...

A: According to the provided data, the number of trials, n = 8 and probability of hitting target, p = 0...