What is the name of this hypothesis test? Researchers from the Gallup Poll interviewed two random samples. Both samples, one taken in January 2014 and one taken in January 2015, had 3500 people. In January 2014, 1575 respondents said they felt "pretty good" about the amount of money they had to spend. In January 2015, 1715 respondents felt this way. Can we conclude that economic confidence has improved since 2014? O One Samplet Test O Chi-Square Test for Independence O Paired Samples t Test O Two Independent Samples t Test O Linear Regression t Test O ANOVA O One Proportion z Test O One Sample z Test O Two Proportion z Test O Chi-Square Goodness of Fit Test

What is the name of this hypothesis test? Researchers from the Gallup Poll interviewed two random samples. Both samples, one taken in January 2014 and one taken in January 2015, had 3500 people. In January 2014, 1575 respondents said they felt "pretty good" about the amount of money they had to spend. In January 2015, 1715 respondents felt this way. Can we conclude that economic confidence has improved since 2014? O One Samplet Test O Chi-Square Test for Independence O Paired Samples t Test O Two Independent Samples t Test O Linear Regression t Test O ANOVA O One Proportion z Test O One Sample z Test O Two Proportion z Test O Chi-Square Goodness of Fit Test

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Description: What is the name of this hypothesis test?Researchers from the Gallup Poll interviewed two random samples. Both samples, one taken in January2014 and one taken in January 2015, had 3500 people. In January 2014, 1575 respondents said they felt"pretty

MATLAB: An Introduction with Applications

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Concept explainers

2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.

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Question

What is the name of this hypothesis test?
Researchers from the Gallup Poll interviewed two random samples. Both samples, one taken in January
2014 and one taken in January 2015, had 3500 people. In January 2014, 1575 respondents said they felt
"pretty good" about the amount of money they had to spend. In January 2015, 1715 respondents felt this
way. Can we conclude that economic confidence has improved since 2014?
O One Sample t Test
O Chi-Square Test for Independence
O Paired Samples t Test
O Two Independent Samples t Test
O Linear Regression t Test
O ANOVA
O One Proportion z Test
O One Sample z Test
O Two Proportion z Test
Chi-Square Goodness of Fit Test

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