The weights for a group of 18-month-old girls are normally distributed with a mean of 24.8 pounds and a standard deviation of 2.5 pounds. Use the given table to find the percentage of18-month-old girls who weigh between 21.8 and 23.1 pounds.z-scorePercentilez-scorePercentilez-scorePercentile-3.00.13-2.02.28-1.015.87-2.90.19-1.92.87-0.918.41-2.80.26-1.83.59-0.821.19-2.70.35-1.74.46-0.724.20C-2.60.47-1.65.48-0.627.43-2.50.62-1.56.68-0.530.85% of 18-month-old girls weigh between 21.8 and 23.1 pounds.(Round the final answer to the nearest hundredth as needed. Round the z-score to the nearest tenth as needed.)-2.40.82-1.48.08-0.434.46-2.31.07-1.39.68-0.338.21-2.21.39-1.211.51-0.242.07-2.11.79-1.113.57-0.146.02

It is given that Mean = 24.8 Standard deviation = 2.5 Z-Score, Z = ( X - μ )/σ

Answered: z-score Percentile z-score Percentile…

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

Grades A college admissions officer, defending thecollege’s use of SAT scores in the admissions process,produced the graph below. It shows the mean GPAs forlast year’s freshmen, grouped by SAT scores. How strongis the evidence that SAT Score is a good predictor ofGPA? What concerns you about the graph, the statisticalmethodology or the conclusions reached?
Complete the table by finding the residuals. Predicted y Residual 9.03 12.27 11 2 18 20 3 13 14 13 14 7.41 11.19 9.30
Please solve and show complete solution. Thank you!
uppose you know that the amount of time it takes your friend Susan to get from her residence to class averages 50 minutes, with a standard deviation of 5 minutes. What proportion of Susan's trips to class would take more than 50 minutes? proportion more than 50 minutes:
The ogive represents the heights of males in a particular country in the 20-29 age group. What height represents the 70th percentile? How should you interpret this? The 70th percentile represents about inches. (Round to nearest whole number as needed.) 100- Percentile 8.8.8.8. 80- 60- 40- 20- 04 63 65 67 69 71 73 75 Height (in inches) O ง
5
Maria ran an experiment to determine the optimal conditions for growing artichokes. The data below displays the weights of the artichokes she grew (measured in grams). 59 50.9 64.5 46.3 72.5 56.2 72.5 37.7 72.5 43.8 What is the mean weight of the artichokes? mean = What is the median weight of the artichokes? median = What is the mode weight of the artichokes? mode = Check Answer Type here to search Cc F5 F1 F2 F3 F4 F6 F7 F8 F9 F10 F- %23 $ & 3 6. 7 8 Q Y U D G H J K LU
W Use the accompanying radiation levels in kg different cell phones. Find the percentile P70- P70 = W for 50 0.23 0.26 0.28 0.51 0.59 0.59 0.63 0.70 0.76 0.87 C 0.90 0.93 0.94 0.94 0.95 0.97 1.00 1.02 1.08 1.08 1.09 1.11 1.12 1.13 1.14 1.14 1.16 1.16 1.18 1.18 1.19 1.23 1.25 1.25 1.26 1.27 1.28 1.28 1.29 1.31 1.33 1.34 1.35 1.41 1.43 1.43 1.48 1.51 1.52 1.52 (Type an integer or decimal rounded to two decimal places as needed.) kg
Use the standard normal table to find the z-score that corresponds to the given percentile. If the area is not in the table, use the entry closest to the area. If the area is halfway between two entries, use the z-score halfway between the corresponding z-scores. If convenient, use technology to find the z-score. P82 Question content area bottom Part 1 The z-score that corresponds to P82 is enter your response here . (Round to two decimal places as needed.) z 0.00 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.0 0.5000 0.5040 0.5080 0.5120 0.5160 0.5199 0.5239 0.5279 0.5319 0.5359 0.1 0.5398 0.5438 0.5478 0.5517 0.5557 0.5596 0.5636 0.5675 0.5714 0.5753 0.2 0.5793 0.5832 0.5871 0.5910 0.5948 0.5987 0.6026 0.6064 0.6103 0.6141 0.3 0.6179 0.6217 0.6255 0.6293 0.6331 0.6368 0.6406 0.6443 0.6480 0.6517 0.4 0.6554 0.6591 0.6628 0.6664…
Solve attached photo
Q6 Fast and correct
Statistics students believe that the mean score on a first statistics test is 65. The instructor thinks that the mean score is higher. She samples 10 statistics students and obtains the scores: Grades 74.4 96 83.2 65 63.9 64.3 74.4 69 68.4 88 Test grades are believed to be normally distributed.Use a significance level of 5%. State the alternative hypothesis: HA:HA: μ>65μ>65 μ<65μ<65 μ≠65μ≠65 State the mean of the sample: (Round to two decimal places.) State the standard error of the sample means: (Round to four decimal places.) State the test statistic: t=t= (Round to four decimal places.) State the p-value: (Round to four decimal places.) Decision: Reject the null hypothesis. Do not reject the null hypothesis.

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