An instructor wants to do a quick research on the distribution of time (in hours) that her students spent on thecourse webpage. Due to time constraint in this quick research, she only can randomly check the webpageusing history of 10 students out of 50 students in the class list. The distribution of time for these 10 studentsis listed below:Accessed timeNumber of students spent such amount of time10 hours1 student2 student8 hours6 hours4 students20 hours1 student2 students11 hoursa. Compute the mean of the time distribution in this group of students.b. Compute the variance and standard deviation of time distribution with the given data.с.One student in this class spent 12 hours at the course webpage.1.Find the z-score associated with this value of 12 hours.

Given that X Frequency 10 1 8 2 6 4 20 1 11 2

research on the distribution of time (in hours) that her students spent on the course webpage. Due to time constraint in this quick research, she only can randomly check the webpage using history of 10 students out of 50 students in the class list. The distribution of time for these 10 students is listed below: Accessed time 10 hours 8 hours 6 hours Number of students spent such amount of time 1 student 2 student 4 students 1 student 2 students 20 hours 11 hours a. Compute the mean of the time distribution in this group of students. b. Compute the variance and standard deviation of time distribution with the given data. c. One student in this class spent 12 hours at the course webpage. Find the z-score associated with this value of 12 hours. 1.

research on the distribution of time (in hours) that her students spent on the course webpage. Due to time constraint in this quick research, she only can randomly check the webpage using history of 10 students out of 50 students in the class list. The distribution of time for these 10 students is listed below: Accessed time 10 hours 8 hours 6 hours Number of students spent such amount of time 1 student 2 student 4 students 1 student 2 students 20 hours 11 hours a. Compute the mean of the time distribution in this group of students. b. Compute the variance and standard deviation of time distribution with the given data. c. One student in this class spent 12 hours at the course webpage. Find the z-score associated with this value of 12 hours. 1.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section: Chapter Questions

Problem 13PT

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