1- We want to assess the effect of a short period English course for a group...
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
1- We want to assess the effect of a short period English course for a group of newcomer students. We put students to an English exam before and after the course. We want to determine if the course helped the students to increase their scores. Which of the following test type is more appropriate? a) a paired two-tailed test • b) a two independent sample, one-tailed test . c) a paired one-tailed test 1- We want to assess the effect of a short period English course for a group of newcomer students. We put students to an English exam before and after the course. We want to determine if the course helped the students to increase their scores. Which of the following test type is more appropriate? a) a paired two-tailed test • b) a two independent sample, one-tailed test . c) a paired one-tailed test
Expert Answer:
Answer rating: 100% (QA)
Answer A paired two tailed test A twotailed test in statis... View the full answer
Related Book For
Statistics The Exploration & Analysis of Data
ISBN: 978-1133164135
7th edition
Authors: Roxy Peck, Jay L. Devore
Posted Date:
Students also viewed these mathematics questions
-
An experiment was carried out to assess the effect of Sweet Talk, a text messaging support system for patients with diabetes (A Randomized Controlled Trial of Sweet Talk, Diabetic Medicine [2006]:...
-
An experiment is conducted to assess the effect of the temperature during curing of a certain kind of cement. Six batches of the cement are prepared, and each batch is separated into five parts that...
-
To assess the effect of state right-to-work laws (which do not require membership in the union as a precondition of employment) on union membership, the following regression results were obtained,...
-
You believe that oil prices will be rising more than expected, and that rising prices will result in lower earnings for industrial companies that use a lot of petroleum-related products in their...
-
In the game of RISK, two players compete in a game of dice rolling for conquest of the world. One player is on offense while the other is on defense. For this problem, the player on offense is...
-
Find the general solution for each differential equation. dx + 3xy = 1
-
If possible, subtract the following irrational numbers without using a calculator. If this is not possible, state why. \(2.1 \sqrt{45}-3.7 \sqrt{5}\)
-
On June 1, Beardsley Service Co. was started with an initial investment in the company of $22,100 cash. Here are the assets and liabilities of the company at June 30, and the revenues and expenses...
-
17. From the given data, Determine the net fair value of the forward contract of the company as of December 31, 2020. a. 100-asset b. 75-liability c. Not applicable d. 175-liability 18. From the data...
-
Turner Excavation maintains a checking account and has decided to open a petty cash fund. The following petty cash fund transactions occurred during July: July 2 Established a petty cash fund by...
-
Answer following the chart. Required information [The following information applies to the questions displayed below.]. Bunnell Corporation is a manufacturer that uses job-order costing. On January...
-
Refer to the Christopher Doner case at: https://www.policefoundation.org/wp-content/uploads/2015/07/Police-Under-Attack.pdf to answer each of the following questions. 1. Discuss at least three things...
-
What is the most significant fact that people learned about abnormal psychology? What did the field of abnormal psychology that changed an existing perceptions (e.g., what "myth" did people believe...
-
CH --00 Subskills: 1 Physics is all about making models, and we often model complex things with simple approximations that give a good description of the real phenomenon. We will examine how to think...
-
FIRST PROJECT MEMO: Sling TV stands out from other streaming services because it gives the flexibility to customize packages with add-on channels at a more affordable price, allowing viewers to move...
-
1. Translate the following C code to RISC-V assembly (assume a, b, c are in x5, x6, x7): int a = 12; int b = 42; int c; c = b++ a; printf("%d", c);
-
Selling and administrative expenses are considered tobe: A. a product cost under variable costing. B. a product cost under absorption costing. C. part of fixed manufacturing overhead under...
-
1. Below is depicted a graph G constructed by joining two opposite vertices of C12. Some authors call this a "theta graph" because it resembles the Greek letter 0. a. What is the total degree of this...
-
The article Wait Times on Rise to See Doctor (USA Today, June 4, 2009) gave the accompanying data on average wait times in days to get an appointment with a medical specialist in 15 U.S. cities....
-
This exercise requires the use of a computer package. The authors of the article Absolute Versus per Unit Body Length Speed of Prey as an Estimator of Vulnerability to Predation (Animal Behaviour...
-
The authors of the paper Weight-Bearing Activity during Youth Is a More Important Factor for Peak Bone Mass than Calcium Intake (Journal of Bone and Mineral Research [1994], 10891096) studied a...
-
The weights of ice cream cartons are normally distributed with a mean weight of 10 ounces and a standard deviation of 0.5 ounce. (a) What is the probability that a randomly selected carton has a...
-
A machine is set to fill paint cans with a mean of 128 ounces and a standard deviation of 0.2 ounce. A random sample of 40 cans has a mean of 127.9 ounces. The machine needs to be reset when the mean...
-
In a sample of 1000 fines issued by the City of Toronto for parking infractions in September of 2020, the mean fine was \(\$ 49.83\) and the standard deviation was \(\$ 52.15\). A random sample of...
Study smarter with the SolutionInn App