In a certain school district, it was observed that 25% of the students in the element schools were classified as only children (no siblings). However, in the special program for talented and gifted children, 124 out of 428 students are only children. The school district administrators want to know if the proportion of only children in the special program is significantly different from the proportion for the school district. Test at the α=0.02α=0.02 level of significance. What is the hypothesized population proportion for this test? p=p= Correct (Report answer as a decimal accurate to 2 decimal places. Do not report using the percent symbol.) Based on the statement of this problem, how many tails would this hypothesis test have? one-tailed test two-tailed test Correct Choose the correct pair of hypotheses for this situation: (A) (B) (C) H0:p=0.25H0:p=0.25 Ha:p<0.25Ha:p<0.25 H0:p=0.25H0:p=0.25 Ha:p≠0.25Ha:p≠0.25 H0:p=0.25H0:p=0.25 Ha:p>0.25Ha:p>0.25 (D) (E) (F) H0:p=0.29H0:p=0.29 Ha:p<0.29Ha:p<0.29 H0:p=0.29H0:p=0.29 Ha:p≠0.29Ha:p≠0.29 H0:p=0.29H0:p=0.29 Ha:p>0.29Ha:p>0.29 (A) (B) (C) (D) (E) (F) Correct Using the normal approximation for the binomial distribution (without the continuity correction), what is the test statistic for this sample based on the sample proportion? z=z= (Report answer as a decimal accurate to 3 decimal places.)

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Description: In a certain school district, it was observed that 25% of the students in the element schools were classified as only children (no siblings). However, in the special program for talented and gifted children, 124 out of 428 students are only children

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section: Chapter Questions

Problem 8CR

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In a certain school district, it was observed that 25% of the students in the element schools were classified as only children (no siblings). However, in the special program for talented and gifted children, 124 out of 428 students are only children. The school district administrators want to know if the proportion of only children in the special program is significantly different from the proportion for the school district. Test at the α=0.02α=0.02 level of significance.

What is the hypothesized population proportion for this test?
p=p= Correct
(Report answer as a decimal accurate to 2 decimal places. Do not report using the percent symbol.)

Based on the statement of this problem, how many tails would this hypothesis test have?

one-tailed test
two-tailed test

Correct

Choose the correct pair of hypotheses for this situation:

(A)	(B)	(C)
H0:p=0.25H0:p=0.25 Ha:p<0.25Ha:p<0.25	H0:p=0.25H0:p=0.25 Ha:p≠0.25Ha:p≠0.25	H0:p=0.25H0:p=0.25 Ha:p>0.25Ha:p>0.25

(D)	(E)	(F)
H0:p=0.29H0:p=0.29 Ha:p<0.29Ha:p<0.29	H0:p=0.29H0:p=0.29 Ha:p≠0.29Ha:p≠0.29	H0:p=0.29H0:p=0.29 Ha:p>0.29Ha:p>0.29

(A)

(B)

(C)

(D)

(E)

(F)

Correct

Using the normal approximation for the binomial distribution (without the continuity correction), what is the test statistic for this sample based on the sample proportion?
z=z=
(Report answer as a decimal accurate to 3 decimal places.)

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