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A group of third grade students is taught using a new curriculum. A control group of third grade students is taught using the old curriculum. The reading test scores for the two groups are shown in the back-to-back stem-and-leaf plot. At a = 0.01, is there enough evidence to support the claim that the new method of teaching reading produces higher reading test scores than the old method does? Assume the population variances are equal. Complete parts (a) through (e) below. Assume the samples are random and independent, and the populations are normally distributed. Old New Curriculum Curriculum 9 3 7449 98765500 558 98641100 6 11234445567 8 701566778 825 Key: 41710 = 74 Old and 70 New (a) Identify the claim and state Ho and H₂. Which is the correct claim below? O A. "The new method of teaching reading produces higher reading test scores than the old method." O B. "The new method of teaching reading produces different reading test scores than the old method." OC. "The new method of teaching reading produces lower reading test scores than the old method." OD. "The new method of teaching reading produces equal reading test scores as the old method."

A group of third grade students is taught using a new curriculum. A control group of third grade students is taught using the old curriculum. The reading test scores for the two groups are shown in the back-to-back stem-and-leaf plot. At a = 0.01, is there enough evidence to support the claim that the new method of teaching reading produces higher reading test scores than the old method does? Assume the population variances are equal. Complete parts (a) through (e) below. Assume the samples are random and independent, and the populations are normally distributed. Old New Curriculum Curriculum 9 3 7449 98765500 558 98641100 6 11234445567 8 701566778 825 Key: 41710 = 74 Old and 70 New (a) Identify the claim and state Ho and H₂. Which is the correct claim below? O A. "The new method of teaching reading produces higher reading test scores than the old method." O B. "The new method of teaching reading produces different reading test scores than the old method." OC. "The new method of teaching reading produces lower reading test scores than the old method." OD. "The new method of teaching reading produces equal reading test scores as the old method."

MATLAB: An Introduction with Applications
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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.) Find the critical? value(s) and identify the rejection? region(s).

C.) Find the standardized test statistic.

D.) Decide whether to reject or fail to reject the null hypothesis.

E.) Interpret the decision in the context of the original claim.

A group of third grade students is taught using a new curriculum. A control group of third grade students is taught using the old curriculum. The reading test scores for the two groups are shown in the back-to-back stem-and-leaf plot. At α = 0.01, is there enough evidence to support the claim that the new method of teaching reading produces higher reading test scores than the old method does? Assume the population variances are equal. Complete parts (a) through (e) below. Assume the samples are random and independent, and the populations are normally distributed. Old New Curriculum Curriculum 9|3 74 49 98765500558 98641100 6 1 12 34445567 701566778 825 Key: 4|7|0 = 74 Old and 70 New (a) Identify the claim and state Ho and H₂. Which is the correct claim below? O A. "The new method of teaching reading produces higher reading test scores than the old method." B. "The new method of teaching reading produces different reading test scores than the old method." C. "The new method of teaching reading produces lower reading test scores than the old method." D. "The new method of teaching reading produces equal reading test scores as the old method."
Transcribed Image Text:A group of third grade students is taught using a new curriculum. A control group of third grade students is taught using the old curriculum. The reading test scores for the two groups are shown in the back-to-back stem-and-leaf plot. At α = 0.01, is there enough evidence to support the claim that the new method of teaching reading produces higher reading test scores than the old method does? Assume the population variances are equal. Complete parts (a) through (e) below. Assume the samples are random and independent, and the populations are normally distributed. Old New Curriculum Curriculum 9|3 74 49 98765500558 98641100 6 1 12 34445567 701566778 825 Key: 4|7|0 = 74 Old and 70 New (a) Identify the claim and state Ho and H₂. Which is the correct claim below? O A. "The new method of teaching reading produces higher reading test scores than the old method." B. "The new method of teaching reading produces different reading test scores than the old method." C. "The new method of teaching reading produces lower reading test scores than the old method." D. "The new method of teaching reading produces equal reading test scores as the old method."
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