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Taught Enough Math? In 1994, 52% of parents of children in
Chapter , Problem 21AYU(choose chapter or problem)
Problem 21AYU
Problem
Taught Enough Math? In 1994, 52% of parents of children in high school felt it was a serious problem that high school students were not being taught enough math and science. A recent survey found that 256 of 800 parents of children in high school felt it was a serious problem that high school students were not being taught enough math and science. Do parents feel differently today than they did in 1994? Use the α = 0.05 level of significance.?
Source: Based on “Reality Check: Are Parents and Students Ready for More Math and Science?” Public Agenda, 2006.
Questions & Answers
QUESTION:
Problem 21AYU
Problem
Taught Enough Math? In 1994, 52% of parents of children in high school felt it was a serious problem that high school students were not being taught enough math and science. A recent survey found that 256 of 800 parents of children in high school felt it was a serious problem that high school students were not being taught enough math and science. Do parents feel differently today than they did in 1994? Use the α = 0.05 level of significance.?
Source: Based on “Reality Check: Are Parents and Students Ready for More Math and Science?” Public Agenda, 2006.
ANSWER:
Answer :
Step 1 of 2:
Given, 52% of parents of children in high school felt it was a serious problem that high school students were not being taught enough math and science. A recent survey found that 256 of 800 parents of children in high school felt it was a serious problem that high school students were not being taught enough math and science. Level of significance .
= 52% = 0.52 and 1 - = 0.48
: p = 0.52
: p 0.52
n = 800, x = 256 and = 0.05
199.68 > 10
Let test statistic be
Z =
Where, p = x/n = 256/800 = 0.32 , = 0.52 and 1 - =0.48
then , Z =
Z =
= = -11.3250
The critical value for two tailed test when =0.05 is -1.96
Hence, reject the null hypothesis