Given are five observations for two variables, x and y. Given are five observations for two variables, x and y.71621Yi91782725Develop the 90% confidence and prediction intervals when x = 12.(to 4 decimals)t-value(to 3 decimals)(to 4 decimals)Spred(to 4 decimals)Confidence Interval for x = 12) (to 2 decimals)Prediction Interval for x = 12) (to 2 decimals)The two intervals are different because there is more variability associated with predictingSelect your answer -value than there isSelect your answer -value.3.

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MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Question 8 The following data set contains the number of minutes spent by each of 20 students in the class to write the assignment. 42 48 59 61 62 62 64 65 66 68 68 70 71 71 72 72 78 79 84 88 a. Find the median, the first and the third quartiles, and the interquartile range. b. Find the left outer fence, left inner fence, right inner fence, and right outer fence. c. Find the length of left whisker and the length of right whisker in the box – whisker plot. d. List all outliers (if any) in the last row. If there are no outliers state “none”.List all extreme values (if any) in the last row. If there are no extreme values state “none”. Show work for the calculations for Part B and Part C.
.The two data sets below represent the high temperatures in two citieseach day for 5 days.City A: 18°F, 44°F, 52°F, 55°F, 58°F, 56°FCity B: 15°F, 41°F, 63°F, 61°F, 57°F, 60°F Which statementbestdescribes the measure of center that provides themost accurate estimation of the high temperature in a day in each city? A.mean, because there is an even number of values in each data set B.median, because there is an even number of values in each data set C.mean, because there is one value in each data set that is significantlylower than the other values D.median, because there is one value in each data set that issignificantly lower than the other values
The following observations are for two quantitative variables, and y. Observation Observation 1 27 63 11 21 81 2 24 100 12 85 24 3 58 53 13 67 39 4 73 38 14 15 99 TITI 5 48 62 15 82 37 6 88 23 16 32 63 7 30 47 17 44 56 8 10 93 18 54 64 9 66 46 19 31 27 10 61 52 20 30 28 If your answer is "zero", enter "0". a. Develop a crosstabulation for the data, with as the row variable and y as the column variable. For use classes of 10 - 29, 30-49, and so on; for y use classes of 20 - 39, 40-59, and so on. y x 80-100 Grand Total 20 - 39 40 - 59 60 - 79 X X X 10-29 X X X X 30-49 X X X X X 50-69 X X X X 70 - 90 Grand Total b. Compute the row percentages (to 1 decimal). Y I 20 - 39 40-59 80 - 100 Grand Total X% 10-29 30-49 X% % % 50 - 69 X % *% 70-90 c. Compute the column percentages (to 1 decimal). Y 20 - 39 40 - 59 *% 10 - 29 % 30-49 50 - 69 70 - 90 Grand Total % 1% % % *% 60 - 79 % % 1% % ¹% X % % X. % % 60 - 79 X. % *% X% % % X% X % *% % 80-100 * % % % 1% X% % *% 1% %
PART I: For this part, we will divide the data set into two groups: those who have infection and those who do not. Consider only those who have an infection.1. For these subjects only, construct a stemplot for the variable “heart rate”. (We will be making this into a back-to-back stemplot later, so leave room on the left side.)2. Discuss the shape of your stemplot. Is it symmetric? Positively skewed? Negatively skewed? None of these? Are there any outliers?3. How would you describe the center and the spread of this distribution?4. Find the five-number summary.5. Construct a box plot.
Determine whether the given value is a static or parameter. A sample of employees is selected and it is found that 25% own a television.

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Given are five observations for two variables, x and y. 3 6 7 16 21 Yi 9 17 8 27 25 Develop the 90% confidence and prediction intervals when a = 12. (to 4 decimals) t-value (to 3 decimals) (to 4 decimals)