Assume that the Richter scale magnitudes of earthquakes are normally distributed with a mean of 1.157 and astandard deviation of 0.532. Complete parts a through c below.a. Earthquakes with magnitudes less than 2.000 are considered "microearthquakes" that are not felt. Whatpercentage of earthquakes fall into this category?94.35 %(Round to two decimal places as needed.)b. Earthquakes above 4.0 will cause indoor items to shake. What percentage of earthquakes fall into this category?0%(Round to two decimal places as needed.)c. Find the 95th percentile.(Round to three decimal places as needed.)

Given information: μ=mean=1.157σ=standard deviation=0.532 Let us denote X as the magnitudes follows…

Answered: Assume that the Richter scale…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

3.The standard deviation of a normal frequency curve is doubled. Match each parameter to what happens as a result One answer for each. A.width B.peak height C.area under the curve more information needed decreases increases stays the same
A set of data items is normally distributed with a mean of 60 and a standard deviation of 8. Convert 36 to a z-score. ard Z30 (Type an integer or a decimal. Do not round until the final answer. Then round to the nearest hundredth as needed.) cen
Assume that adults have IQ scores that normally distributed with a mean of 99.2 and a standard deviation of 24.2. Find the first quartile Q1. Which is the IQ score separating the bottom 25% from the top 75%. ( hint . Draw a graph ). The first quartile is ____ ( type an integer or decimal rounded to one decimal place as needed .)
Claim: The mean systolic blood pressure of all healthy adults is less than 122 mm Hg. Sample data: For 269 healthy adults, the mean systolic blood pressure level is 121.74 mm Hg and the standard deviation is 15.02 mm Hg. Complete parts (a) and (b). a. Express the original claim in symbolic form. Let the parameter represent a value with respect to systolic blood pressure of a healthy adult.
Scores on a standardized exam are normally distributed with a mean of 529 and a standard deviation of 50. The figure below shows the distribution of the scores on a standardized exam. Calculate the shaded area under the curve. Express your answer in decimal form accurate to at least two decimal places. Answer: 562.5 The Scores on a Standardized Exan 629
Thermometers used at the Tongas National Park in Alaska are supposed to give readings of 0° C at the freezing point of water. However, not all thermometers do, some give readings below 0°C (denoted by negative numbers) and some give readings above 0° C (denoted by positive numbers). Assume that the mean reading is 0° C and the standard deviation is 1.00° C. Also assume that these readings are normally distributed. A thermometer is randomly selected and tested. If 2% of the thermometers are rejected because they have readings that are too high (but all other thermometers are acceptable), find the the temperature that separates the rejected thermometers from the others. Round your answer to two decimal places. Temperature = Shade the appropriate region be sure to round you previous answer to one decimal place in order to graph: Shade: Left of a value Click and drag the arrows to adjust the values. -3 1 -/ 2 -1.5
The brain volumes (cm3) of 50 brains vary from a low of 908 cm3 to a high of 1478 cm3. Use the range rule of thumb to estimate the standard deviation s and compare the result to the exact standard deviation of 174.7 cm3, assuming the estimate is accurate if it is within 15 . The estimated standard deviation is nothing cm3. (Type an integer or a decimal. Do not round.) Compare the result to the exact standard deviation. A. The approximation is not accurate because the error of the range rule of thumb's approximation is greater than 15 cm3. B. The approximation is accurate because the error of the range rule of thumb's approximation is less than 15 cm3. C. The approximation is not accurate because the error of the range rule of thumb's approximation is less than 15 cm3. D. The approximation is accurate because the error of the range rule of thumb's approximation is greater than 15 cm3.
Assume that thermometer readings are normally distributed with a mean of 0degrees°C and a standard deviation of 1.00degrees°C. A thermometer is randomly selected and tested. (The given values are in Celsius degrees.) Between -1.47and 1.76
Claim: The mean systolic blood pressure of all healthy adults is less than 122 mm Hg. Sample data: For 278 healthy adults, the mean systolic blood pressure level is 119.95 mm Hg and the standard deviation is 15.39 mm Hg. Complete parts (a) and (b). C a. Express the original claim in symbolic form. Let the parameter represent a value with respect to systolic blood pressure of a healthy adult. (Type an integer or a decimal. Do not round.)
To gauge their fear of going to a dentist, a random sample of adults completed the Modified Dental Anxiety Scale questionnaire (BMC Oral Health, Vol. 9, 2009). Scores on the scale range from zero (no anxiety) to 25 (extreme anxiety). The mean score was 11 and the standard deviation was 4. Assume that the distribution of all scores on the Modified Dental Anxiety Scale is approximately normal with μ = 11 and o=4. Complete parts a through c below. a. Suppose you score a 10 on the Modified Dental Anxiety Scale. Find the z-value for this score. Z= (Round to two decimal places as needed.) b. Find the probability that someone scores between 10 and 19 on the Modified Dental Anxiety Scale. The probability is (Round to four decimal places as needed.) c. Find the probability that someone scores above 20 on the Modified Dental Anxiety Scale. The probability is (Round to four decimal places as needed.) B **** 4
Claim: The mean systolic blood pressure of all healthy adults is less than 122 mm Hg. Sample data: For 277 healthy adults, the mean systolic blood pressure level is 121.89 mm Hg and the standard deviation is 15.88 mm Hg. Complete parts (a) and (b). a. Express the original claim in symbolic form. Let the parameter represent a value with respect to systolic blood pressure of a healthy adult. (Type an integer or a decimal. Do not round.)
Claim: The mean systolic blood pressure of all healthy adults is less than 125 mm Hg. Sample data: For 272 healthy adults, the mean systolic blood pressure level is 123.92 mm Hg and the standard deviation is 15.65 mm Hg. Complete parts (a) and (b). a. Express the original claim in symbolic form. Let the parameter represent a value with respect to systolic blood pressure of a healthy adult. ▼ (Type an integer or a decimal. Do not round.) b. Identify the null and alternative hypotheses. ▼ ▼ C Ho H₁: (Type integers or decimals. Do not round.)

SEE MORE QUESTIONS

Recommended textbooks for you

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

Elementary Statistics: Picturing the World (7th E…

Statistics

ISBN:

9780134683416

Author:

Ron Larson, Betsy Farber

Publisher:

PEARSON

The Basic Practice of Statistics

Statistics

ISBN:

9781319042578

Author:

David S. Moore, William I. Notz, Michael A. Fligner

Publisher:

W. H. Freeman

Introduction to the Practice of Statistics

Statistics

ISBN:

9781319013387

Author:

David S. Moore, George P. McCabe, Bruce A. Craig

Publisher:

W. H. Freeman

SEE MORE TEXTBOOKS

Assume that the Richter scale magnitudes of earthquakes are normally distributed with a mean of 1.157 and a standard deviation of 0.532. Complete parts a through c below. Earthquakes with magnitudes less than 2.000 are considered "microearthquakes" that are not falt What