In a certain school district, it was observed that 28% of the students in the element schools were classified as only children (no siblings). However, in the special program for talented and gifted children, 75 out of 199 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 a = 0.02 level of significance. What is the hypothesized population proportion for this test? p = 0.28 v o (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

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section11.4: Collecting Data
Problem 3E
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In a certain school district, it was observed that 28% of the students in the element schools were classified as
only children (no siblings). However, in the special program for talented and gifted children, 75 out of 199
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
0.02 level of significance.
α -
What is the hypothesized population proportion for this test?
= d
0.28
(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
Choose the correct pair of hypotheses for this situation:
(A)
(B)
(C)
Ho:p:
Ha:p < 0.28
Но:р
Ha:p + 0.28
Но : р — 0.28
Ha:p > 0.28
0.28
0.28
(D)
(E)
(F)
Но: р — 0.377 Но:р — 0.377 | Но: р — 0.377
На:р < 0.377 На:р + 0.377 | На:р> 0.377
%3|
(A) (B) (C) (D) (E) (F)
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
(Report answer as a decimal accurate to 3 decimal places.)
You are now ready to calculate the P-value for this sample.
P-value
Transcribed Image Text:In a certain school district, it was observed that 28% of the students in the element schools were classified as only children (no siblings). However, in the special program for talented and gifted children, 75 out of 199 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 0.02 level of significance. α - What is the hypothesized population proportion for this test? = d 0.28 (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 Choose the correct pair of hypotheses for this situation: (A) (B) (C) Ho:p: Ha:p < 0.28 Но:р Ha:p + 0.28 Но : р — 0.28 Ha:p > 0.28 0.28 0.28 (D) (E) (F) Но: р — 0.377 Но:р — 0.377 | Но: р — 0.377 На:р < 0.377 На:р + 0.377 | На:р> 0.377 %3| (A) (B) (C) (D) (E) (F) 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 (Report answer as a decimal accurate to 3 decimal places.) You are now ready to calculate the P-value for this sample. P-value
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