**Title: Evaluating the Effectiveness of Remedial Tutoring****Introduction:**A statistics tutor seeks to determine the effectiveness of her remedial tutoring for a group of 10 students. The tutor recorded students' grades before and after receiving tutoring, as shown in the table below.**Grades Table:**| Before | After ||--------|-------|| 6.2 | 8.1 || 7.7 | 8.5 || 8.3 | 9.7 || 5.9 | 7.9 || 7.3 | 9.9 || 8.8 | 8.0 || 7.9 | 7.8 || 5.5 | 7.6 || 7.4 | 9.5 || 6.9 | 6.9 |**Objectives:**i. Identify the appropriate statistical test to evaluate the tutoring's effectiveness at a 0.05 level of significance.ii. Conduct the test to determine if the tutoring is effective at the 0.05 level and draw conclusions from the findings.iii. Use SPSS to generate and present the results of the test in a table format.**Conclusion:**The table provides a comparison of students' grades before and after tutoring, serving as the basis for statistical analysis to determine the effectiveness of the tutoring program.

We are given data as,BeforeAfter6.28.17.78.58.39.75.97.97.39.98.88.07.97.85.57.67.49.56.96.9i)…

Answered: 3. A statistics tutor wants to assess…

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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I need help with something regarding this problem. The National Sleep Foundation recommends that adults aged 18 to 64 get an average of 8 hours of sleep per night. A survey of sleep hours was taken during a Statistics class. The data is listed below: 4, 5, 5, 5, 5.5, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 7, 8, 8, 8, 8, 9, 9, 9, 10, 10 Do we have enough evidence at the 0.05 significance level to say that statistics students tend to get less sleep than the recommended average of 8 hours per night? How would I get the degrees of freedom?
Use the given data to complete parts (a) and (b) below. y 2.2 3.8 4 1.5 2.9 3.7 4.6 4.9 (b) Draw a scatter diagram of the data with the additional data point (10.4,9.3). Choose the correct answer below. OA. OB. Oc. OD 124 12- 12- 12 8- 8- 8- 4- 4.
Is there a relationship between Facebook use and age among college students? The following two-way table displays data for the 219 students who responded to the Age Younger (18–22) Middle (23–27) Older (28 and up) Facebook user? Yes 78 49 21 No 4 21 46 What percent of the students who responded were Facebook users? What percent of the students in the sample were aged 28 or older? What percent of the students who responded were older Facebook users? What percent of the Facebook users in the sample were younger students? Find the distribution of Facebook use for each of the three age groups. Make a stacked bar graph to compare these Describe what the graph in part (e) reveals about the association between age and Facebook
p2.q2) Can anyone help me with that question? It is easy but i am confused. Thank you
Is there a statistically significant difference between classical and dance groups in this data set? picture is attached below
In order to compare two statistics textbooks, Mr.Marin recommends one book to one class and another book to another class. At the end of the year the classes are each examined; the results out of 100 marks are detailed below.Textbook 144 52 95 76 13 94 83 72 55 81 22 25 64 72 35 48 56 59 84 98 84 21 35 69 28Textbook 265 72 48 63 68 59 68 62 75 79 81 72 39 55 58 52 82 79 55 64 53 58 59 64 66 68 42 37(i) Calculate the mean and standard deviation for each class. (ii) Which class performed better?(iii) Which class was more consistent? (iv) Compute the coefficient of variation for each class. Comment on the results.(v) Construct a stem and leaf for each class.(vi) Compute their lower quartile, upper quartile, interquartile range and median for each class.(vii) Using a graph paper, draw a box and whisker plot for each class. Showing all parameters. Commenting on the distribution of the data set. Hence indicate whether there are outliers.
We discuss how to test for an association between two categorical variables in Section 6.8. A marine research team records the number of fish from 3 species that they find at different depth categories in the ocean. They are interested in assessing whether or not there is a relationship between the depth category (close to surface, mid-level, ocean floor) and the fish species found (species A, species B, species C). A two-way table showing the classification of a sample of 150 observations is given below. If the variables for the ocean depth category and the species are independent, how would you calculate the expected number of fish that are at the mid-level and from species C? Expected number =
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