19. The following table gives the lifetime in hours of 400 radio tubes of a certain make.Find the mean lifetime of the radio tubes.Number oftubesLifetimeNumber of tubesLifetime(in hrs.)(in hours)Less than 800Less than 900Less than 300Less than 400Less than 50026532437439220Less than 1,000Less than 1,10060116Less than 600Less than 700194Less than 1,200400altaas

Answered: Image /qna-images/answer/9f2a3d9e-0905-465f-a48a-2803a40fdd7c.jpg

Answered: 19. The following table gives the…

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

T he number of awards earned by students at one high school is recorded. Predictors of the number of awards earned include the type of program in which the student was enrolled (e.g., vocational, general or academic) and the score on their final exam in math. Below is a description of the variables and their levels of measurement Variables Student ID - NOMINAL Math Scores - RATIO Total # of awards - DISCRETE Program Type - NOMINAL (categorical with three levels: (1)general, (2)academic, (3)vocational) Total Students= 200 Total Awards = 194 Total math scores = 10529 Program Type sum = 405 Describe the modality (i.e., shape) of this distribution (please be sure to include the appropriate statistics to support your description)
The following table shows the price (in RM) and quantity (in kg) of four different items bought by 'Aleesya Coffee House' from 2008 to 2011: 2009 2011 Items Price Quantity (kg) Quantity (kg) Price (RM) (RM) Rice 8.20 210 9.15 280 Wheat 2.30 120 2.20 95 Sugar 1.30 550 1.65 550 Coffee 0.85 58 1.00 65 Calculate the Simple Average Quantity Index in 2011 compare to 2009 Select one: a. 122.53 b. 106.14 c. 113.75 d. 123.55
Show your complete computation then answer what is being asked.
Total blood volume (in ml) per body weight (in kg) is important in medical research. For healthy adults, the red blood cell volume mean is about μ = 28 ml/kg.† Red blood cell volume that is too low or too high can indicate a medical problem. Suppose that Roger has had seven blood tests, and the red blood cell volumes were as follows. 34 25 43 34 28 37 31 The sample mean is x ≈ 33.1 ml/kg. Let x be a random variable that represents Roger's red blood cell volume. Assume that x has a normal distribution and σ = 4.75. Do the data indicate that Roger's red blood cell volume is different (either way) from μ = 28 ml/kg? Use a 0.01 level of significance. (a) What is the level of significance? State the null and alternate hypotheses. Will you use a left-tailed, right-tailed, or two-tailed test? H0: μ = 28 ml/kg; H1: μ > 28 ml/kg; right-tailed H0: μ = 28 ml/kg; H1: μ ≠ 28 ml/kg; two-tailed H0: μ ≠ 28 ml/kg; H1: μ = 28 ml/kg; two-tailed H0: μ = 28 ml/kg; H1: μ < 28 ml/kg;…
5. The table below shows the distribution of marks scored by 500 students in their oral test in Music. Compute the 3 quartiles. Number of Students Scores (x) 91 100 81 – 90 17 71-80 63 61- 70 65 51 - 60 86 41- 50 112 31-40 68 21-30 55 11-20 17 1-10 8.
4. The table below shows the length of time to brew coffee when Coffee Shop X opened for three days. Time (minutes) 0 and less than 4 4 and less than 8 Frequency 4 8 and less than 12 10 12 and less than 16 16 and less than 20 4. (i) Calculate the mean and standard deviation for the above data. Construct a histogram to represent the above data. Using the histogram, estimate the modal time spend to brew the coffee for Coffee Shop X and comment on the value obtained. Given that the mean and standard deviation of the length of time to brew the coffee for Coffee Shop Z were 11 and 5.235 respectively. Determine which Coffee Shop has a more consistent distribution. (ii) (ii) (iv)
I hope the solution is to choose the correct one only, no more
Total blood volume (in ml) per body weight (in kg) is important in medical research. For healthy adults, the red blood cell volume mean is about μ = 28 ml/kg.† Red blood cell volume that is too low or too high can indicate a medical problem. Suppose that Roger has had seven blood tests, and the red blood cell volumes were as follows. 33 24 41 36 31 38 28 The sample mean is x ≈ 33.0 ml/kg. Let x be a random variable that represents Roger's red blood cell volume. Assume that x has a normal distribution and σ = 4.75. Do the data indicate that Roger's red blood cell volume is different (either way) from μ = 28 ml/kg? Use a 0.01 level of significance. (c) Find (or estimate) the P-value. (Round your answer to four decimal places.)
Total blood volume (in ml) per body weight (in kg) is important in medical research. For healthy adults, the red blood cell volume mean is about μ = 28 ml/kg.† Red blood cell volume that is too low or too high can indicate a medical problem. Suppose that Roger has had seven blood tests, and the red blood cell volumes were as follows. 33 26 42 34 28 35 31 The sample mean is x ≈ 32.7 ml/kg. Let x be a random variable that represents Roger's red blood cell volume. Assume that x has a normal distribution and σ = 4.75. Do the data indicate that Roger's red blood cell volume is different (either way) from μ = 28 ml/kg? Use a 0.01 level of significance. (a) What is the level of significance? Compute the z value of the sample test statistic. (Round your answer to two decimal places.)(c) Find (or estimate) the P-value. (Round your answer to four decimal places.)
25. The following table relates to the profits and losses of 100 firms. Calculate the average profits and the standard deviation of profits. Profits Number of Firms Profits Number of Firms 5000 to 6000 8. 4000 to 5000 12 3000 to 4000 30 2000 to 3000 10 1000 to 2000 0 to 1000 - 1000 to 0 6. - 2000 to 1000 8. - 3000 to 2000 - 4000 to 3000
43. From the following data compute the value of harmonic mean: 20-30 30-40 40-50 10-20 50-60 Class interval 6 S 10 7. Frequency
Calculate the t-value for a mean for the following u – u0 = 15.00n = 25sx = 10.00

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