In the following data, is the average number of hours the student spent working on math each week andy is the final grade in a math class.hours/weekXSubmit Question888991011141619Gradey69.256.258.271.669.66864.491.687.494.6The line of best fit is y = 3.15 x + 37.77.What is the predicted value for the final grade when a student spends an average of 7 hours each week onmath?Grade =Round to 1 decimal place.

The objective of this question is to find the predicted value for the final grade when a student…

Answered: In the following data, is the average…

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

1. The manager of Jerry's Barbershop recently asked his 50 customers to punch in a timecard when first arrive at the shop and to punch out right after they paid for their haircut. He then used the data on the cards to measure how long it took Jerry and his barbers to cut hair and used that information to schedule their appointment intervals. The following times (in minutes) were tabulated. 15 19 20 22 23 24 25 28 28 28 28 29 30 30 30 31 31 32 32 34 35 35 35 35 35 37 37 37 37 38 40 42 42 45 45 45 48 50 50 50 50 51 51 51 52 52 52 54 55 84
The table below shows the number of state-registered automatic weapons and the murder rate for several Northwestern states. 11.8 8.1 7 3.7 2.7 2.8 2.6 0.4 14.3 11 10.1 7.1 6.1 6.2 6.4 4.6 I = thousands of automatic weapons y = murders per 100,000 residents This data can be modeled by the equation y = 0.87x + 3.98. Use this equation to answer the following: Special Note: I suggest you verify this equation by performing linear regression on your calculator. A) How many murders per 100,000 residents can be expected in a state with 6.2 thousand automatic weapons? Answer = Round to 3 decimal places. B) How many murders per 100,000 residents can be expected in a state with 2.4 thousand automatic weapons? Answer = Round to 3 decimal places. Hint: Help Question Help: 9 Message instructor 田 @ 3 16
The table below shows the number of state-registered automatic weapons and the murder rate for several Northwestern states. I 11.7 8 6.8 3.6 2.3 2.5 2.5 0.4 y 13.7 11 9.8 I= thousands of automatic weapons 7.4 6.2 6.2 4.2 y = murders per 100,000 residents This data can be modeled by the equation y = 0.84x + 4.11. Use this equation to answer the following; Special Note: I suggest you verify this equation by performing linear regression on your calculator. Use the equation with the values rounded to two decimal places to make your predictions. A) How many murders per 100,000 residents can be expected in a state with 8.5 thousand automatic weapons? Answer = Round to 3 decimal places. B) How many murders per 100,000 residents can be expected in a state with 2.8 thousand automatic weapons? Answer Round to 3 decimal places.
Use a stem-and-leaf plot to display the data, which represent the numbers of hours 24 nurses work per week. Describe any patterns. 40 42 48 32 40 30 23 40 36 40 Key: 313=33 Hours worked 2 3 4 5 Determine the leaves in the stem-and-leaf plot below. 50 32 36 40 35 38 49 What best describes the data? 40 36 36 40 33 40 32 OA. Most nurses work over 40 hours per week. OB. Most nurses work under 40 hours per week. OC. Most nurses work between 40 and 50 hours per week, inclusive. OD. Most nurses work between 30 and 40 hours per week, inclusive.
Please do in steps.
One way to measure a person's fitness is to measure their percentage of body fat. Average body fat percentage varies with age, but according to certain guidelines, the normal range for men is 15-20% body fat, and for women, 20-25%. The sample data comes from a group of men and women who exercised in a gym three times a week for one year. His trainer then measured his body fat. The data is shown in the following table. Determine the descriptive statistics of the sample. Does the sample have a normal distribution? Explain why. State the statistical hypotheses: H0 and HA. Determine the α Is this test one or two tailed? What statistical conclusion did you reach regarding the question being evaluated? GroupingBody Fat Percentages Men 13.3 6 20 8 14 19 18 25 16 24 15 1 15 Women 22 16 21.7 21 30 26 12 23.2 28 23
Q12
2 The accompanying data set lists diastolic blood pressure measurements (mm Hg) of females. All of the values are even numbers. Construct a stemplot. Identify the two values that are closest to the middle when the data are sorted in order from lowest to highest. (These values are often used to find the median.) 70 68 80 80 66 70 74 90 80 90 64 D 66 88 70 62 78 70 66 76 72 72 72 Construct the stemplot. Time Remaining: 01:17:13 Next MacBook Air C F11 F6 F2 W Textbook Statcrunch < Previous 80 F3 #3 E 54 $ Q F4 70 R 88 27 50 % 9 F5 T A 6 Y & 7 ♡ F7 U * 8 DII F8 ( 9 F9 0 ) A A F10 P L { + " 4) F12 باب 3 delete
The data in the figure below represents the number of stars earned by 140 performers in a talent competition.How many performers earned exactly 0 stars? (be careful... the y-axis represents the PERCENTAGE of the total number of performers. Ex: 30% of 140 would = 140 * 0.30 = 42)
the table below shows the number of books the Jefferson Middle school students readeach month for nine months. Month Sept. Oct. Nov. Dec. Jan. Feb. Mar. Apr. May Number of Books 293 280 266 280 289 279 275 296 271 If the students read only 101 books for the month of June, which measure of central tendency will have the greatest change?A. The mean will have the greatest change.B. The median will have the greatest change.C. All measures will have an equal change.D. The mode will have the greatest change.
= The data show the distance (in miles) from an airport of a sample of 22 inbound and outbound airplanes. Use technology to answer parts (a) and (b). a. Find the data set's first, second, and third quartiles. b. Draw a box-and-whisker plot that represents the data set. D 3.2 2.6 3.3 5.9 5.4 3.5 2.6 2.2 5.7 2.9 2.8 2.7 4.3 2.1 1.9 4.6 2.6 5.4 3.6 2.4 5.5 2.2 a. Find the three quartiles. Q₁ Q₂ d (Type integers or decimals. Do not round.) b. Choose the correct box-and-whisker plot below.
What is the y-intercept of the prediction line?

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