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A academic tutor wants to assess whether her remedial tutoring has been effective for her five students. She decides to conduct a related samples t-test and records the following grades for students prior to and after receiving her tutoring. Tutoring Before After 2.43.12.52.83.03.52.93.12.73.5
(a) Test whether or not her tutoring is effective at a 0.05 level of significance. State the value of the test statistic. (Round your answer to three decimal places.)t =
State the decision to retain or reject the null hypothesis.
Retain the null hypothesis.
Reject the null hypothesis.
(b) Compute effect size using estimated Cohen's d. (Round your answer to two decimal places.)
what is an interaction? describe an example and identify the variables within your population work social academic etc.
To forecast future cigarette sales, the last four years' quarterly sales were recorded in the Excel file Tute10-Q1.xls. Calculate the 3-quarter and 5-quarter moving averages. Show the relevant graphs. Interpret the results. Compute MAD and SSE for ea..
Fertilization of bromeliads, continued. Repeat the analysis of Exercise 29.42 using change in the number of leaves as the response variable.
find 99 confidence interval for variance and st deviation of weights of 25 one gallon containers of motor oil ifa
Considering the 30 winners as a sample from all of the persons filling out such cards, is this a probability sample or a nonprobability sample? What specific type of probability or nonprobability sample does this procedure represent?
What is the probability that a random sample of 13 students results in a mean reading rate of more than 96 words per minute?
question to help students improve their reading a school district decides to implement a reading program. it is to be
Consider a domain where the word coffee can refer to the following concepts in a knowledge-base: a caffeinated or decaffeinated beverage, ground coffee used.
The table below shows the distribution of education level attained by US residents by gender based on data collected during the 2010 American Community Survey.
perform exploratory data analysis on all variables in the data set. because you are going to focus on extroversion and
Test to determine if there is a significant negative relationship between the independent and dependent variable at a = .05 and .01
a specific automotive part that a service station stocks in its inventory has an 8 chance of being defective. suppose
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