A teacher give special crayons to children who want to improve their drawings and later rates their drawings asthe best in class. What does this study lack?BDa hypothesis and a methoda result and an interpretationan independent variable and a dependent variablerandom assignment and a blind observer

We check all of the given options Hypothesis and method: The scenario clearly mentions the…

Answered: A teacher give special crayons to…

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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Pls explain the selected option in 5-6 sentence only Which of the following statement(s) are false? (Select all that apply.) a) Correlation measures the strength of a linear relationship between two quantitative variables.-1 ≤ r ≤ 1 b) The sign of r tells the direction of the linear relationship between two quantitative variables. c) The correlation has the same units (e.g., feet or minutes) as the explanatory variable. d) If the correlation between two quantitative variables is zero, then there cannot be a relationship between these two variables.
Categorical data. and 1.34 p value of all combined
For this activity identify the independent or quasi independent and dependent variables in the following samples I'll show you how to identify the type of manipulation used for the independent variable in the skills of measurement for the dependent variables discuss each example and consider any confounding variables that may pose a problem for the study
Populations are different than samples because_________________. (Select all that apply). a. parameters always have more error than a statistic. b. the population is always larger than the sample. c. Parameters always have less error than a statistic.
Alignment Font Clipboard fe L2 E G. H. K A. C D Problem: Customers are complaining about sandwich leagth You are the owner of three local sandwich shops. Recently you've received complaints from customers that their "footlong" sub sandwiches were les than 12 inches long. As a measure of 1 quality assurance, data was collected on all footlong sub sondwiches made over the pcriod of an hour at cach store. Determined which, if any, of your stores are making sub sandwiches that are significantly shorter than 12 inches. You will conduct three t-tests, one for coch store. You want 4 6. to be 95% confident in your recults. (Note. This case is inspired by reality. Scarch the internet for "claims over footlong sub' for a historical perspective and how a company used statistics to incure consistent quality.) 17 10 11 SandwicL Measuremeat: 12 Store 1 Store 2 Store 3 Statistics Store 1 Store 2 Store 3 13 8.8 3.1 9.0 Somple Size Mean (length) 14 11.4 11.6 12.5 15 13.4 13.4 15.1 Variance Standard…
Part 4 please
Which statement is true about the dot plot? 1 2 3 4 5 O The data is fairly uniform. O The mean is greater than the median. O No conclusions can be drawn from the data. O The mode and the median of the data are the same.
Attention: These data are different from your previous questions! Now Lynn takes a different approach. They collect another two samples - GPA from students taking a semester of in-class courses, and then the same students' GPA when they are taking a semester of online courses. The data set is below. They predict that they will find a difference between in-class GPA and online GPA for the same students. Differences Between GPA's Student In Class GPA Online GPA Amy 4.0 3.5 Brad 3.5 2.2 Caroline 3.7 2.0 Dan 3.5 3.5 Emily 3.6 3.3 Frank 3.2 3.2 George 3.3 2.1 What is the t-statistic for this t-test? (Round to 2 decimal places.)
Need answers ASAP! Explanations aswell please!
Multiple Choice Question Consider the following scatter plot: (Picture is attached) Which is the most realistic r-value and why?a) ? = .9721b) ? = −.9829c) ? = .9123d) ? = −.9045
Help me learn
I need help with this one please thank you!

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A teacher give special crayons to children who want to improve their drawings and later rates their drawings a: the best in class. What does this study lack? B a hypothesis and a method a result and an interpretation an independent variable and a dependent variable