The exercises arc based on the following sample data obtained from different second-year medical students who took blood pressure measurements of the same person (based on data from Marc Triola, MD). Systolic 138 130 135 140 120 Diastolic 82 91 100 100 80 1. If you plan to use a 0.05 significance level in a test of a correlation between the systolic and diastolic readings, what are the critical values of r ?

Question

Want to see more full solutions like this?

Answer 1

Textbook Question

Chapter 10, Problem 1CQQ

The exercises arc based on the following sample data obtained from different second-year medical students who took blood pressure measurements of the same person (based on data from Marc Triola, MD).

Systolic	138	130	135	140	120
Diastolic	82	91	100	100	80

1. If you plan to use a 0.05 significance level in a test of a correlation between the systolic and diastolic readings, what are the critical values of r?

Expert Solution & Answer

To determine

To find: The critical values of r.

Answer to Problem 1CQQ

The critical value of r is±0.878.

Explanation of Solution

Given info:

The data shows that the measurements of systolic and diastolic blood pressures. The level of significance is α=0.05 .

Calculation:

Critical value:

The degrees of freedom (n) is 5. From the TABLE A-6 “Critical Values of the Pearson Correlation Coefficient r”, the critical value for 5 degrees of freedom and α=0.05 level of significance is ±0.878.

Conclusion:

Thus, the critical value of r is±0.878.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Students have asked these similar questions

In order to find probability, you can use this formula in Microsoft Excel: The best way to understand and solve these problems is by first drawing a bell curve and marking key points such as x, the mean, and the areas of interest. Once marked on the bell curve, figure out what calculations are needed to find the area of interest. =NORM.DIST(x, Mean, Standard Dev., TRUE). When the question mentions “greater than” you may have to subtract your answer from 1. When the question mentions “between (two values)”, you need to do separate calculation for both values and then subtract their results to get the answer. 1. Compute the probability of a value between 44.0 and 55.0. (The question requires finding probability value between 44 and 55. Solve it in 3 steps. In the first step, use the above formula and x = 44, calculate probability value. In the second step repeat the first step with the only difference that x=55. In the third step, subtract the answer of the first part from the…

If a uniform distribution is defined over the interval from 6 to 10, then answer the followings: What is the mean of this uniform distribution? Show that the probability of any value between 6 and 10 is equal to 1.0 Find the probability of a value more than 7. Find the probability of a value between 7 and 9. The closing price of Schnur Sporting Goods Inc. common stock is uniformly distributed between $20 and $30 per share. What is the probability that the stock price will be: More than $27? Less than or equal to $24? The April rainfall in Flagstaff, Arizona, follows a uniform distribution between 0.5 and 3.00 inches. What is the mean amount of rainfall for the month? What is the probability of less than an inch of rain for the month? What is the probability of exactly 1.00 inch of rain? What is the probability of more than 1.50 inches of rain for the month? The best way to solve this problem is begin by creating a chart. Clearly mark the range, identifying the lower and upper…

Problem 1: The mean hourly pay of an American Airlines flight attendant is normally distributed with a mean of 40 per hour and a standard deviation of 3.00 per hour. What is the probability that the hourly pay of a randomly selected flight attendant is: Between the mean and $45 per hour? More than $45 per hour? Less than $32 per hour? Problem 2: The mean of a normal probability distribution is 400 pounds. The standard deviation is 10 pounds. What is the area between 415 pounds and the mean of 400 pounds? What is the area between the mean and 395 pounds? What is the probability of randomly selecting a value less than 395 pounds? Problem 3: In New York State, the mean salary for high school teachers in 2022 was 81,410 with a standard deviation of 9,500. Only Alaska’s mean salary was higher. Assume New York’s state salaries follow a normal distribution. What percent of New York State high school teachers earn between 70,000 and 75,000? What percent of New York State high school…

Answer 2

Textbook Question

Chapter 10, Problem 1CQQ

The exercises arc based on the following sample data obtained from different second-year medical students who took blood pressure measurements of the same person (based on data from Marc Triola, MD).

Systolic	138	130	135	140	120
Diastolic	82	91	100	100	80

1. If you plan to use a 0.05 significance level in a test of a correlation between the systolic and diastolic readings, what are the critical values of r?

Expert Solution & Answer

To determine

To find: The critical values of r.

Answer to Problem 1CQQ

The critical value of r is±0.878.

Explanation of Solution

Given info:

The data shows that the measurements of systolic and diastolic blood pressures. The level of significance is α=0.05 .

Calculation:

Critical value:

The degrees of freedom (n) is 5. From the TABLE A-6 “Critical Values of the Pearson Correlation Coefficient r”, the critical value for 5 degrees of freedom and α=0.05 level of significance is ±0.878.

Conclusion:

Thus, the critical value of r is±0.878.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 3

Textbook Question

Chapter 10, Problem 1CQQ

The exercises arc based on the following sample data obtained from different second-year medical students who took blood pressure measurements of the same person (based on data from Marc Triola, MD).

Systolic	138	130	135	140	120
Diastolic	82	91	100	100	80

1. If you plan to use a 0.05 significance level in a test of a correlation between the systolic and diastolic readings, what are the critical values of r?

Expert Solution & Answer

To determine

To find: The critical values of r.

Answer to Problem 1CQQ

The critical value of r is±0.878.

Explanation of Solution

Given info:

The data shows that the measurements of systolic and diastolic blood pressures. The level of significance is α=0.05 .

Calculation:

Critical value:

The degrees of freedom (n) is 5. From the TABLE A-6 “Critical Values of the Pearson Correlation Coefficient r”, the critical value for 5 degrees of freedom and α=0.05 level of significance is ±0.878.

Conclusion:

Thus, the critical value of r is±0.878.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 4

Textbook Question

Chapter 10, Problem 1CQQ

The exercises arc based on the following sample data obtained from different second-year medical students who took blood pressure measurements of the same person (based on data from Marc Triola, MD).

Systolic	138	130	135	140	120
Diastolic	82	91	100	100	80

1. If you plan to use a 0.05 significance level in a test of a correlation between the systolic and diastolic readings, what are the critical values of r?

Expert Solution & Answer

To determine

To find: The critical values of r.

Answer to Problem 1CQQ

The critical value of r is±0.878.

Explanation of Solution

Given info:

The data shows that the measurements of systolic and diastolic blood pressures. The level of significance is α=0.05 .

Calculation:

Critical value:

The degrees of freedom (n) is 5. From the TABLE A-6 “Critical Values of the Pearson Correlation Coefficient r”, the critical value for 5 degrees of freedom and α=0.05 level of significance is ±0.878.

Conclusion:

Thus, the critical value of r is±0.878.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 5

Textbook Question

Answer 6

Textbook Question

Answer 7

Expert Solution & Answer

To determine

To find: The critical values of r.

Answer to Problem 1CQQ

The critical value of r is±0.878.

Explanation of Solution

Given info:

The data shows that the measurements of systolic and diastolic blood pressures. The level of significance is α=0.05 .

Calculation:

Critical value:

The degrees of freedom (n) is 5. From the TABLE A-6 “Critical Values of the Pearson Correlation Coefficient r”, the critical value for 5 degrees of freedom and α=0.05 level of significance is ±0.878.

Conclusion:

Thus, the critical value of r is±0.878.

Answer 8

Expert Solution & Answer

To determine

To find: The critical values of r.

Answer to Problem 1CQQ

The critical value of r is±0.878.

Explanation of Solution

Given info:

The data shows that the measurements of systolic and diastolic blood pressures. The level of significance is α=0.05 .

Calculation:

Critical value:

The degrees of freedom (n) is 5. From the TABLE A-6 “Critical Values of the Pearson Correlation Coefficient r”, the critical value for 5 degrees of freedom and α=0.05 level of significance is ±0.878.

Conclusion:

Thus, the critical value of r is±0.878.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

To determine

To find: The critical values of r.

Answer 12

Answer to Problem 1CQQ

The critical value of r is±0.878.

Answer 13

Explanation of Solution

Given info:

The data shows that the measurements of systolic and diastolic blood pressures. The level of significance is α=0.05 .

Calculation:

Critical value:

The degrees of freedom (n) is 5. From the TABLE A-6 “Critical Values of the Pearson Correlation Coefficient r”, the critical value for 5 degrees of freedom and α=0.05 level of significance is ±0.878.

Conclusion:

Thus, the critical value of r is±0.878.

Answer 14

Ch. 10.2 - Notation For each of several randomly selected...Ch. 10.2 - Physics Experiment A physics experiment consists...Ch. 10.2 - Cause of High Blood Pressure Some studies have...Ch. 10.2 - Notation What is the difference between the...Ch. 10.2 - Interpreting r. In Exercises 5-8, use a...Ch. 10.2 - Interpreting r. In Exercises 5-8, use a...Ch. 10.2 - Interpreting r. In Exercises 5-8, use a...Ch. 10.2 - Cereal Killers The amounts of sugar (grams of...Ch. 10.2 - Explore! Exercises 9 and 10 provide two data sets...Ch. 10.2 - Explore! Exercises 9 and 10 provide two data sets...

Concept explainers

Videos

Answer to Problem 1CQQ

Explanation of Solution

Want to see more full solutions like this?

Chapter 10 Solutions