A realtor studies the relationship between the size of a house (in square feet) and the...

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A realtor studies the relationship between the size of a house(in square feet) and the property taxes (in $) owed by the owner.The table below shows a portion of the data for 20 homes in asuburb 60 miles outside of New York City. [You may find ituseful to reference the t table.]

Property Taxes

Size

21892

2498

17421

2419

18170

1877

15679

1011

43962

5607

33657

2575

15300

2248

16789

1984

18108

2021

16794

1311

15113

1327

36069

3033

31058

2871

42126

3346

14392

1533

38911

4032

25323

4041

22972

2446

16160

3596

29215

2871

a-1. Calculate the sample correlationcoefficient rxy. (Round intermediatecalculations to at least 4 decimal places and final answers to 4decimal places.)

a-2. Interpret rxy.

a. The correlation coefficient indicates a positive linearrelationship.

b. The correlation coefficient indicates a negative linearrelationship.

c. The correlation coefficient indicates no linearrelationship.

b. Specify the competing hypotheses in order todetermine whether the population correlation coefficient betweenthe size of a house and property taxes differs from zero.

a. H0: ρxy = 0;HA: ρxy ≠ 0

b. H0: ρxy ≥ 0;HA: ρxy < 0

c. H0: ρxy ≤ 0;HA: ρxy > 0

c-1. Calculate the value of the test statistic.(Round intermediate calculations to at least 4 decimalplaces and final answer to 3 decimal places.)

c-2. Find the p-value.

a. p-value < 0.01

b. p-value  0.10

c. 0.05  p-value < 0.10

d. 0.02  p-value < 0.05

e. 0.01  p-value < 0.02

d. At the 5% significance level, what is theconclusion to the test?

a. Reject H0; we can state size and propertytaxes are correlated.

b. Reject H0; we cannot state size andproperty taxes are correlated.

c. Do not reject H0; we can state size andproperty taxes are correlated.

d. Do not reject H0; we cannot state sizeand property taxes are correlated.

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