Twenty years ago, 54% 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 280 of 750 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 twenty years ago? Use the a= 0.05 level of significance. Because npo (1- Po) 10, the sample size is V 5% of the population size, and the sample V the requirements for testing the hypothesis satisfied. (Round to one decimal place as needed.) What are the null and alternative hypotheses? Ho versus H, (Type integers or decimals. Do not round.) Find the test statistic. Z0 = (Round to two decimal places as needed.) Find the P-value. P-value = (Round to three decimal places as needed.) Determine the conclusion for this hypothesis test. Choose the correct answer below. O A. Since P-value a, reject the null hypothesis and conclude that there is not sufficient evidence that parents feel differently today. OC. Since P-value >a, do not reject the null hypothesis and conclude that there is not sufficient evidence that parents feel differently today. O D. Since P-value
Twenty years ago, 54% 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 280 of 750 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 twenty years ago? Use the a= 0.05 level of significance. Because npo (1- Po) 10, the sample size is V 5% of the population size, and the sample V the requirements for testing the hypothesis satisfied. (Round to one decimal place as needed.) What are the null and alternative hypotheses? Ho versus H, (Type integers or decimals. Do not round.) Find the test statistic. Z0 = (Round to two decimal places as needed.) Find the P-value. P-value = (Round to three decimal places as needed.) Determine the conclusion for this hypothesis test. Choose the correct answer below. O A. Since P-value a, reject the null hypothesis and conclude that there is not sufficient evidence that parents feel differently today. OC. Since P-value >a, do not reject the null hypothesis and conclude that there is not sufficient evidence that parents feel differently today. O D. Since P-value
Chapter9: Sequences, Probability And Counting Theory
Section: Chapter Questions
Problem 56RE: For the following exercises, use the following data: An elementary school survey found that 350 of...
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Contingency Table
A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.
Binomial Distribution
Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.
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Transcribed Image Text:Twenty years ago, 54% 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 280 of 750 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 twenty years ago? Use the
a= 0.05 level of significance.
Because npo (1- Po) =L
V10, the sample size is
V 5% of the population size, and the sample
the requirements for testing the hypothesis
V satisfied.
(Round to one decimal place as needed.)
What are the null and alternative hypotheses?
7 versus H,
(Type integers or decimals. Do not round.)
Find the test statistic.
Zp = (Round to two decimal places as needed.)
Find the P-value.
P-value = (Round to three decimal places as needed.)
Determine the conclusion for this hypothesis test. Choose the correct answer below.
O A. Since P-value <a, do not reject the null hypothesis and conclude that there is sufficient evidence that parents feel differently today.
O B. Since P-value >a, reject the null hypothesis and conclude that there is not sufficient evidence that parents feel differently today.
OC. Since P-value > a, do not reject the null hypothesis and conclude that there is not sufficient evidence that parents feel differently today.
O D. Since P-value <a, reject the null hypothesis and conclude that there is sufficient evidence that parents feel differently today.
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