Question Completion Status: Moving to another question will save this response. A Moving to another question will save this response. > 4 5 6 R T Y* Question Completion Status: A Moving to another question will save this response. >> & % 6 7 4 5 R T Y H J KA Moving to another question will save this response. Question 25 4 points Save Answer Participant Hours on electronic devices 1 0 N A 3 A OT N Compute the standard deviation for the number of hours on electronic devices for the sample of students. (round final answer to 2 decimal places) ? O a. 2 O b. 1.85 O C. 24 O d. 4 Moving to another question will save this response. > % & 7 4 5 6 R T Y F G H Chsu.blackboard.com X Bb Content Checkout | PrettyLittleThing S us.shein.com Remaining Time: 1 hour, 15 minutes, 57 seconds. Question Completion Status: Question 21 4 points Save Answer 10 1 2 5 9 7 2 4 Given : EX=40 EX2=280 N=8 Compute the Sum of Squares (SS). (Round final step to 2 decimal places) ? 40 280 O 80 -9,760 > > A Moving to another question will save this response. Ro > V 5 6 4 R T YQuestion Completion Status: Question 24 4 points Save Answer Answer items 24-26 using the scenario below: Administrators at Spartan State University are concerned with the number of hours college students spend on their electronic devices (i.e. smart phones, I-pads, Tablets) each day. Specifically, that increased use of these devices impact academic performance. The administrators recruit a sample of n=7 students from around campus. One of the survey items asks students to report the number of hours spent on their electronic devices each day. The data are as follows: Participant Hours on electronic devices 1 0 2 AN - V OUT A Or ? Compute the mean number of hours spent on electronic devices a. 21 Ob. 3 O c. 3.5 O d. 2 o 6 7 8 R T Y G H N Mmaining ! Question Completion Status: Question ZU UT 207 estion 20 4 points Save Answer Answer items 20-23 using the scenario below: A behavior therapist is about to begin working with an ADHD (attention-deficit/hyperactivity disorder) child in a classroom setting to reduce the number of times he gets out of his seat, talks out of turn, or goes off-task. To establish a baseline, the therapist observes the child for an hour each morning and afternoon for 5 days, keeping a tally of the target behaviors. Here are the therapist's behavior tallies for the 8 observation periods. 10 2 5 9 2 4 Given : EX=40 EX2=280 N=8 Compute the average number of "off task" behaviors (Round to 2 decimal places). (? Oa. 5 Ob. 56 O c. 5.71 O d. 40 Moving to another question will save this response. >> 5 6 V A R T Y