Question

The accompanying data have a sample correlation? coefficient, rounded to three decimal? places, of negative 0.583....

The accompanying data have a sample correlation? coefficient, rounded to three decimal? places, of negative 0.583. Perform a hypothesis test with the data to determine if the population correlation coefficient rho is less than zero using alphaequals0.01.
x
8
5
3
2
5

y
5
9
9
7
6
What are the correct null and alternative? hypotheses?
A.
Upper H 0?: rho greater than or equals 0
Upper H 1?: rho less than 0
B.
Upper H 0?: rho equals 0
Upper H 1?: rho not equals 0
C.
Upper H 0?: rho not equals 0
Upper H 1?: rho equals 0
D.
Upper H 0?: rho less than or equals 0
Upper H 1?: rho greater than 0
What is the test? statistic?
tequals
nothing ?(Round to two decimal places as? needed.)
What is the? p-value?
?p-valueequals
nothing ?(Round to three decimal places as? needed.)
State the conclusion.
?
Reject
Do not reject
Upper H 0. There
?
is
is not
enough evidence from the sample to conclude that rho is
?
not equal to
greater than
less than
zero.

Homework Answers

Answer #1

The statistical software output for this problem is:

Hence,

Hypotheses: Option A is correct.

Test statistic = -1.24

p-value = 0.151

Conclusion: Do not reject; is not; Less than

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 simple random sample of size nequals15 is drawn from a population that is normally distributed....
A simple random sample of size nequals15 is drawn from a population that is normally distributed. The sample mean is found to be x overbarequals19.6 and the sample standard deviation is found to be sequals6.3. Determine if the population mean is different from 26 at the alpha equals 0.01 level of significance. Complete parts ​(a) through ​(d) below. ​(a) Determine the null and alternative hypotheses. Upper H 0​: ▼ sigma mu p ▼ equals greater than not equals less than...
A simple random sample of size nequals15 is drawn from a population that is normally distributed....
A simple random sample of size nequals15 is drawn from a population that is normally distributed. The sample mean is found to be x overbarequals21.8 and the sample standard deviation is found to be sequals6.3. Determine if the population mean is different from 24 at the alpha equals 0.01 level of significance. Complete parts ​(a) through ​(d) below. ​(a) Determine the null and alternative hypotheses. Upper H 0​: ▼ mu sigma p ▼ less than equals greater than not equals...
In a previous​ year, 51​% of females aged 15 and older lived alone. A sociologist tests...
In a previous​ year, 51​% of females aged 15 and older lived alone. A sociologist tests whether this percentage is different today by conducting a random sample of 550 females aged 15 and older and finds that 287 are living alone. Is there sufficient evidence at the alphaequals0.01 level of significance to conclude the proportion has​ changed? Because np 0 left parenthesis 1 minus p 0 right parenthesisequals nothing ▼ greater than less than not equals equals ​10, the sample...
Listed below are amounts of court income and salaries paid to the town justices. All amounts...
Listed below are amounts of court income and salaries paid to the town justices. All amounts are in thousands of dollars. Construct a​ scatterplot, find the value of the linear correlation coefficient​ r, and find the​ P-value using alpha equals0.05 . Is there sufficient evidence to conclude that there is a linear correlation between court incomes and justice​ salaries? Based on the​ results, does it appear that justices might profit by levying larger​ fines? Court Income 64.0 402.0 1568.0 1130.0...
Test the hypothesis using the​ P-value approach. Be sure to verify the requirements of the test....
Test the hypothesis using the​ P-value approach. Be sure to verify the requirements of the test. Upper H 0​: pequals0.5 versus Upper H 1​: pgreater than0.5 nequals250​; xequals140​; alphaequals0.01 Click here to view page 1 of the table.LOADING...   Click here to view page 2 of the table.LOADING... Calculate the test​ statistic, z 0. z 0equals nothing ​(Round to two decimal places as​ needed.) Identify the​ P-value. ​P-valueequals nothing ​(Round to three decimal places as​ needed.) Choose the correct result of...
It has long been stated that the mean temperature of humans is 98.6degreesF. ​However, two researchers...
It has long been stated that the mean temperature of humans is 98.6degreesF. ​However, two researchers currently involved in the subject thought that the mean temperature of humans is less than 98.6degreesF. They measured the temperatures of 67 healthy adults 1 to 4 times daily for 3​ days, obtaining 300 measurements. The sample data resulted in a sample mean of 98.3degreesF and a sample standard deviation of 1degreesF. Use the​ P-value approach to conduct a hypothesis test to judge whether...
Assume that you have a sample of n 1 equals 5​, with the sample mean Upper...
Assume that you have a sample of n 1 equals 5​, with the sample mean Upper X overbar 1 equals 48​, and a sample standard deviation of Upper S 1 equals 6​, and you have an independent sample of n 2 equals 4 from another population with a sample mean of Upper X overbar 2 equals 30 and the sample standard deviation Upper S 2 equals 7. Assuming the population variances are​ equal, at the 0.01 level of​ significance, is...
Test the hypothesis using the​ P-value approach. Be sure to verify the requirements of the test....
Test the hypothesis using the​ P-value approach. Be sure to verify the requirements of the test. Upper H 0​: pequals0.9 versus Upper H 1​: pgreater than0.9 nequals200​; xequals185​, alphaequals0.1 Is np 0 left parenthesis 1 minus p 0 right parenthesisgreater than or equals​10? Yes No Use technology to find the​ P-value. ​P-valueequals nothing ​(Round to three decimal places as​ needed.) ▼ Do not reject Reject the null​ hypothesis, because the​ P-value is ▼ less greater than alpha.
Consider the hypothesis statement shown below using alphaequals0.05 and the data to the right from two...
Consider the hypothesis statement shown below using alphaequals0.05 and the data to the right from two independent samples. Upper H 0 : mu 1 minus mu 2 greater than or equals 0 Upper H 1 : mu 1 minus mu 2 less than 0 ?a) Calculate the appropriate test statistic and interpret the result. ?b) Calculate the? p-value and interpret the result. x overbar1 equals 121 x overbar2 equals 137 sigma1 equals 40 sigma2 equals 34 n1 equals 45 n2...
14)In a​ study, researchers wanted to measure the effect of alcohol on the hippocampal​ region, the...
14)In a​ study, researchers wanted to measure the effect of alcohol on the hippocampal​ region, the portion of the brain responsible for​ long-term memory​ storage, in adolescents. The researchers randomly selected 24 adolescents with alcohol use disorders to determine whether the hippocampal volumes in the alcoholic adolescents were less than the normal volume of 9.02 cm cubed. An analysis of the sample data revealed that the hippocampal volume is approximately normal with x overbarequals8.05 cm cubed and sequals0.7 cm cubed....