The following data (in pounds), which were selected randomly from a normally distributed population of values, representmeasurements of a machine part that is supposed to weigh, on average, 8.3 pounds.8.18.48.38.28.58.68.4B.38.48.28.88.28.28.38.18.38.4B.58.58.7Appendix A Statistical TablesUse these data and a - .01 to test the hypothesis that the parts average 8.3 pounds. (Round the sample mean to 2 decimal places. Roundthe value of s to 2 decimai places. Round your answer to 2 decimal places.)The value of the test statistic is t=and we

Assume that μ defines the true average weight of machine parts.

Answered: The following data (in pounds), which…

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

The following data (see photo) represent the weights (in grams) of random sample of 50 M&M plain candies. Determine the actual percentage of M&Ms that weigh more than 0.911 gram.
A researcher wanted to determine if using an octane booster would increase gasoline mileage. A random sample of seven cars was selected; the cars were driven for two weeks without the booster and two weeks with the booster.
Six different machines are being considered for use in manufacturing rubber seals. The machines are being compared with respect to tensile strength of the product. A random sample of four seals from each machine is used to determine whether the mean tensile strength varies from machine to machine. The following are the tensile-strength measurements in kilograms per square centimeter × 10-1: Machine 1 2 3 4 5 17.5 16.4 20.3 14.6 17.5 18.3 16.9 19.2 15.7 16.7 19.2 16.2 15.8 17.7 17.8 20.8 16.5 17.5 18.6 15.4 18.9 18.9 20.5 20.1 1. Determine SST in two decimal places. Blank 1 2. Determine SSA or SSB in two decimal places Blank 2 3. Determine SSE in two decimal places. Blank 3 4. Determine f calculated in two decimal places. Blank 4 5. Determine f table. Blank 5 6. Is there any significant difference between the machines' tensile strength readings? yes or no. Blank 6
MDM Farms grows normally distributed potatoes and is testing a new crop. After 4 months, 20 plants produce potatoes with the following weights (in kg): 0.7, 1.4, 1.4, 1.3, 0.3, 1.4, 0.6, 1.3, 1.3, 1.1, 0.9, 1.5, 1.1, 1.5, 0.6, 1.4, 1.1, 0.5, 0.6, 0.8 a. Find the mean and standard deviation of the sample. b. What percent of potatoes grown from this crop will be over 2 kg?
You work for a large farm with many fields of corn. You are investigating the mass of a sample of ears of corn. You gather the following data: Mass(g) of ears of corn 12.8 12.9 13.0 13.5 13.9 14.4 14.6 15.1 15.3 15.8 15.9 16.7 16.7 16.9 17.1 17.4 18.7 21.2 21.9 41.6 Some of the masses in the sample seem much larger than the rest. You decide to make several calculations describing the "spread" of the data set. You hope to use them to help in the search for outliers. Here are your summary Statistics: Mean St. Dev. Min Q1 Med Q3 Max 17.3 6.25 12.8 14.275 15.85 17.175 41.6 Find the following: Apply the 1.5 IQR rule to search for outliers. Report the lower and upper cuttoffs. IQR = Lower = Upper = Are there any outliers by the 1.5 IQR rule? (Enter "yes" or "no") Apply the 2-standard deviation rule to search for outliers. Report the lower and upper cuttoffs. Lower = Upper = Are there any outliers by the 2-standard deviation rule? (Enter "yes" or "no")
Find the first and third quartile for the data shown x 10.3 12.1 14.7 17.3 18.7 19.9 20 27.7 27.8 28.4 Q1 = Q3 =
IIT UU I Use the following cell phone airport data speeds (Mbps) from a particular network. Find the percentile corresponding to the data speed 1.4 Mbps. 0.1 0.2 0.2 0.4 0.4 0.4 0.4 0.5 0.5 0.5 O 0.6 0.6 0.7 0.8 0.9 0.9 1.1 1.4 1.4 1.6 1.6 2.1 2.1 2.3 2.3 2.5 2.6 2.7 2.9 3.3 3.8 4.6 4.8 5.9 6.1 6.3 6.9 8.6 9.1 11.2 11.4 11.5 13.3 14.1 14.4 14.5 14.9 15.2 15.4 29.9 Percentile of 1.4 = (Round to the nearest whole number as needed.)
The type of household for the U.S. population and for a random sample of 411 households from a community in Montana are shown below. Type of Household Percent of U.S.Households Observed Numberof Households inthe Community Married with children 26% 92 Married, no children 29% 121 Single parent 9% 31 One person 25% 102 Other (e.g., roommates, siblings) 11% 65 A) Find the value of the chi-square statistic for the sample. (Round the expected frequencies to two decimal places. Round the test statistic to three decimal places.) B)Find or estimate the P-value of the sample test statistic. (Round your answer to three decimal places.)
Consider the following population data; 0, -4, 2, -8, 10 a) Calculate the population variance. b) Calculate the population standard deviation
Find the first and third quartile for the data shown 4.5 4.9 7.2 9 9.9 11.2 13.3 17.6 17.9 25.6 Q1 = Q3 = %3D
Studies suggest that women who smoke during pregnancy affect the birth weights of their newborn infants. To study this issue further, a sample of 10 women smokers were asked to estimate the average number of cigarettes they smoke per day. In the following table are their estimates and the birth weight (in kgs) of their child. Average Number of Cigarettes per day Birth Weight of Child (in kilograms) 22 2.91 16 3.27 4 3.68 19 3.14 42 2.32 8 3.82 12 3.45 30 2.95 14 3.00 16 3.68 (b) Use R-Studio to find the least squares estimate of the linear model that expresses the birth weight of a child as a linear function of the average number of cigarettes mom consumes in a day. Use four decimals in each of your answers.Y^i = ? + - Xi(e) A expecting mother, who smokes, claims to smoke an average of 20 cigarettes in a day. Predict the weight of her newborn. Use two decimals in your answer.kilograms(f) The weight of the child born to the expecting mother mentioned in (e) was…
Q.Jarjout et al conduct a study in which they measured bronchalveolar lavage (BAL) fluid histamine levels in subjects with elergic rhinitis,subject with asthama and normal volunteers .One of the measurement obtained was the total protein in BAL samples.The following are the results for the 61 samples they analysed. 76.33 57.73 74.78 100.36 73.50 77.63 88.78 77.40 51.16 62.20 149.49 86.24 57.90 72.10 67.20 54.38 54.07 91.47 62.32 44.73 55.47 95.06 71.50 73.53 57.68 51.70 114.79 61.70 47.23 78.15 53.07 106.00 35.90 85.40 72.30 61.10 72.20 41.98 59.36 63.96 66.60 69.91 59.20 54.41 59.76 128.40 67.10 83.82 95.33 88.17 109.30 79.55 58.50 82.60 153.56 84.70 62.80 70.17 44.40 61.90 55.05 Use the data to prepare; 1.A frequency distribution. 2.A relative frequency distribution. 3.A cumultative frequency distribution. 4.A box and Whisker plot.

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