A recent study of 1000 high school juniors and seniors asked whether or not they felt smartphonesare a valuable learning tool. Additional data were gathered on their smartphone plan (unlimited data,additional texting, or standard voice plan) and which class they were in (junior vs. senior). Which ofthe following is a correct pair of hypotheses the researchers could test?(A) Ho: The proportion of juniors and seniors who feel smartphones are a valuable learning tool is thesame for students that have each type of plan.Ha: The proportion of juniors and seniors who feel smartphones are a valuable learning tool is notthe same for students that have each type of plan(B) Ho: The proportion of students who feel smartphones are a valuable learning tool is the same forstudents that have each type of plan.Ha: The proportion of students who feel smartphones are a valuable learning tool is not the samefor students that have each type of plan.(C) Ho: There is an association between class and type of plan.H₂: There is no association between class and type of plan.(D) Ho: Class and type of plan are not independent.H₂: Class and type of plan are independent.(E) Ho: Class and type of plan are independent.Ha: Class and type of plan are not independent.

The variables under consideration are smartphone plan and class. The levels for the smartphone plan…

Answered: additional texting, or standard voice…

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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please answer a, b, c
According to the February 2008 Federal Trade Commission report on consumer fraud and identity theft, 23% of all complaints in 2007 were for identity theft. In that year, Alaska had 321 complaints of identity theft out of 1,432 consumer complaints ("Consumer fraud and," 2008). Does this data provide enough evidence to show that Alaska had a lower proportion of identity theft than 23%? Test at the 5% level. (i) Which of the following statements correctly defines the null hypothesis HO? A. μ = 321 B. p < 0.23 C. p = 0.23 D. μ < 321 Enter letter corresponding to correct answer (ii) Which of the following statements correctly defines the alternative hypothesis HA? A. μ = 321 B. p < 0.23 C. p = 0.23 D. μ < 321 Enter letter corresponding to correct answer (iii) Enter the level of significance α used for this test: Enter in decimal form. Examples of correctly entered answers: 0.01 0.02 0.05 0.10 (iv) Determine pˆiv Determine p^ Enter…
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additional texting, or standard voice plan) and which class they were in (junior vs. senior). Which of the following is a correct pair of hypotheses the researchers could test?