18. You Explain It! Quartiles One variable that is measured byonline homework systems is the amount of time a studentspends on homework for each section of the text. The followingis a summary of the number of minutes a student spends foreach section of the text for the fall 2018 semester in a CollegeAlgebra class at Joliet Junior College.Q₁ = 42 Q₂ = 51.5 Q3 = 72.5(a) Provide an interpretation of these results.(b) Determine and interpret the interquartile range. (c) Suppose a student spent 2 hours doing homework for asection. Is this an outlier?(d) Do you believe that the distribution of time spent doinghomework is skewed or symmetric? Why?

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Answered: 18. You Explain It! Quartiles One…

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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Letter (d) Would i be wrong if i said yes the data set consisting of the annual salary for each employee at the MNM company is a population since no employee salary is excluded from the data
Determine which statistic you would use. 1. A psychologist studied if cognitive intelligence was associated with emotional intelligence in50 people. Cognitive intelligence was measured by averaging each person’s scores on tests ofvocabulary and visual problem solving. Emotional intelligence was measured by theparticipant’s score for accurately describing the moment-by-moment emotional reactionsof three people in a filmed interaction 2. A psychologist is interested in whether exercise increases the intensity of REM sleep in adults in three age groups (younger, middle age, older) She obtains 40 people in each age group and randomly assigns half of them to daily exercise or not in a 2 (exercise vs. not) X 3 (age group) design • REM sleep is measured by rating the vividness of dreams recorded in daily dream diaries collected for one week– Bland dreams = 1; very vivid dreams = 5 3. A psychologist believes physical experiences influence perception, such that a hill will appear steeper if…
Given the following box plot: 2 Which quartile contains the most data? 3rd quartile 2nd quartile They are all equal. 1st quartile 4th quartile Your answer is incorrect. You have correctly selected 0. How are the quartiles determined? + 10 12 13
Plzz explain solve a question Only..
Which of the following must be entries from the original data set? the mode the range the third quartile the median the maximum
Hi can you correct the wrong questions?
Please find test statistic and p value also thank you
Scenario: A pediatrician wants to determine the relation that may exist between a child’s height and head circumference. She randomly selects eleven 3-year old children from her practice, measures their heights and head circumference, and obtains the data shown below: Child’s Height and Head Circumference Height (inches) Head Circumference (inches) 27.75 17.6 24.5 17.3 25.5 17.4 26 17.5 25 17.1 25.75 17.8 26.5 17.5 27 17.7 26.75 17.5 26.75 17.8 27.5 17.7 If the pediatrician wants to use height to predict head circumference, determine which variable is the explanatory variable and which is response variable. Draw a scatter diagram of the data. Draw the best fit line on the scatter diagram. Does this scatter diagram show a positive, negative, or no relationship between a child’s height and the head circumference?
10th XX= 33
2 part question done in Excel. 1. Data are collected in a clinical trial evaluating a new compound designed to improve wound healing in trauma patients. The new compound is compared against a placebo. After treatment for 5 days with the new compound or placebo, the extent of the wound healing is measured and the date are show in the table below. Is there a difference in the extent of wound healing by treatment (Hint: Are treatment and the percent wound healing independent?) Run the appropriate tes at a 5% level of significance. 2. Use the data in Problem 1 and pool the data across the treatments into one sample of size n=250. Use the pooled data to test whether the distribution of the percent wound healing is approximately normal. Specifically, use the following distributions: 30%, 40%, 20%, and 10%. Run the appropriate test at a = 0.05.

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