Ms. Santos would like to know if there is significant change on her student after an intervention. She is making a research and want toknow if the intervention is effective. The scores of the student are as follows.Student134789101112Pre-test366276564458773764647174Student1314151617181920212223Pre-test4580704854528063576634Student12346.79101112Post-test793888445384655880677435Student1314151617181920212223Post-test7078745838607990587277Was there a significant increase in the scores of students? Use the 0.10 level of significance.

Introduction: Denote μd as the true mean difference in the scores of the student Pre-test and…

Answered: Ms. Santos would like to know if there…

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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The owner of Maumee Ford-Volvo wants to study the relationship between the age of a car and its selling price. Listed below is a random sample of 12 used cars sold at the dealership during the last year. Complete the chart and the question below. Car Age (years) Selling Price ($000) 1 9 8.1 2 7 6.0 3 11 3.6 4 12 4.0 5 8 5.0 6 7 10.0 7 8 7.6 8 11 8.0 9 10 8.0 10 12 6.0 11 6 8.6 12 6 8.0 Determine the coefficient of determination: ________________
Katie is studying aggression among adolescent girls. She believes that there is a relationship between the level of interaction a girl has with her mother and the level of aggression. She has identified 5 girls who fall into each of 4 interaction level and has measured their aggression scores. Her data are given below. Complete table below by filling in boxes with correct value. Show calculation. No High interaction Low Moderate interaction interaction interaction A,? A2 A3 A3 A4 4 16 4 16 4 16 3 25 36 4 16 4 16 36 5 25 9 4 16 36 4 16 5 25 3 9 25 25 4 16 9 E A,=26 E Ato:= ; EAtor=397; n,=; n;=5; n3=5; n,=5; N=D;X-C); X 2=4.80; X 3=4.00; X 4=3.40 Σ Α-138 E A2 - ΣΑ-118 Σ A-20 Σ Α-82 Σ Α-17 E A, 1. Identify the independent and dependent variable. 2. Should Katie conduct a between-subjects ANOVA or a within-subjects ANOVA? Explain your answer. 3. How many factors are involved in Katie's study?
An educator want to determine whether early exposure to school affect IQ. He enlists the aid of parents of 24 of preschool age children to participate in this experiment, 12 children go to the preschool and 12 children stay at home. At the end of two years, the IQs of all the children are measured. The results are as follows: IQ of children who went to preschool. 110 121 107 117 115 112 130 116 111 120 117 106 IQ of children who stayed home. 114 118 103 112 117 106 125 113 109 122 116 104 what is the alternative and the null hypotheses? what is the mean and standard deviation of each group? what is the result and conclusion?
Help me please its easy i guess so i need only in text form so that i can copy
Part 2: Skills practice 1. The test scores of 40 students are listed below. Find P71. What is the percentile of a score of 71? 31 58 68 86 33 36 37 58 58 59 71 72 88 89 72 89 39 45 60 62 72 78 95 95 47 63 79 96 48 49 52 67 65 68 81 81 79 96 96 98 2. A student earned grades of 84, 78, 84, and 72 on her essays in her freshman composition course. She warned a grade of 78 on the final exam and 86 on her midterm. The sum of all her homework assignment scores totaled 92. Her teacher gives the following weights to each grade category: Homework counts for 10%; essays for 20%; the midterm counts for 30%; the final exam counts for the remaining 40%. What is this students weighted mean grade in this course? FRAAIE
Assume you get a new job as a coach for a sports team, and one of your first decisions is to choose the sports drink that the team will use during practices and games. You obtain a Sports Report magazine so you can use your statistical background to help you make the best decision. The following table lists the most popular sports drinks and some important information about each. Answer the following questions about the table. Drink Calories Sodium Potassium Cost Gatorade 60 110 25 $1.29 Powerade 68 77 32 $1.19 All Sport 75 55 55 $0.89 10-K 63 55 35 $0.79 Exceed 69 50 44 $1.59 1st Ade 58 58 25 $1.09 Hydra Fuel 85 23 50 $1.89 Do all the costs per container fall inside the confidence interval? If not, which ones do not? (show the work)
HISTOGRAM: 3. The following is the IQ scores for 40 randomly chosen fifth graders in 2012. 108 113 12699 117 119|102 109 129 109 130112 81 13890 105 80 123 100 135 140 103 133 127 139 99 114129|108 132118 113 114 128 110 98 127 120 93 85 A. What type of data is this (Categorical or Numerical)? Use the calculator to help you draw a histogram for this IQ data. Full detail steps for using the Ti-83/84 calculator to draw a histogram given in the Chapter 11 notes. B. Enter the fifth grades IQ Scores data into List 1 (L1). C. Using STAT PLOT menu set up your calculator to draw a histogram.
Please apply table to question. Thanks!
Answer all questions
please provide CORRECT answers! Thank you.
A social psychologist wants to know if people judge a person's attractiveness differently if they appear rich or poor. Two pictures were taken with the same model, one in expensive clothes standing next to a new sports car, and the other in old clothes standing next to an old hatchback car. In an online survey, participants were randomly divided so that they saw one of the two pictures and were asked to rate the model's attractiveness on a scale of 1 to 10. Which statistical test would be best to determine if there is a significant difference between groups? one-sample t-test dependent samples t-test independent samples t-test ANOVA
In the class poll from the beginning of the year, you were asked what color car you drive. The results are summarized below. aqua 3 beige/tan/gold 39 black 80 blue 44 green 21 orange 3 pink 1 purple 3 red 45 silver 63 white 74 yellow 1 What is the mode for this data set?

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