Solve the problem. 16) A researcher believes (claims) that children who attend elementary school in a rural setting are more physically active then children who attend elementary school in an urban setting. The researcher collects a random sample from each population and records the proportion of children in each sample who reported participating in at least one hour of rigorous activity a day. The data is summarized in the table below. Assume the all conditions for proceeding with a two-sample test have been met. Conduct a hypothesis test and determine if the given claim is supported or not supported at the 0.05 significance level. Rural Urban "= 90 n. = 78 4%=D74 X = 55 H(a): H(0): Decision: p-value: Conclusion (context):

Solve the problem. 16) A researcher believes (claims) that children who attend elementary school in a rural setting are more physically active then children who attend elementary school in an urban setting. The researcher collects a random sample from each population and records the proportion of children in each sample who reported participating in at least one hour of rigorous activity a day. The data is summarized in the table below. Assume the all conditions for proceeding with a two-sample test have been met. Conduct a hypothesis test and determine if the given claim is supported or not supported at the 0.05 significance level. Rural Urban "= 90 n. = 78 4%=D74 X = 55 H(a): H(0): Decision: p-value: Conclusion (context):

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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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2. In the recent Census, three percent of the U.S. population reported being of two or more races. However, the percent varies tremendously from state to state. Suppose that two random surveys are conducted. In the first random survey, out of 1,000 North Dakotans, nine people reported being of two or more races. In the second random survey, out of 500 Nevadans, 17 people reported being of two or more races. Conduct a hypothesis test to determine if the proportions are the same for the two states or if the proportion for Nevada is statistically different than that of North Dakota.
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1.Which is the alternative hypothesis? a. There is a significant difference between a person's age and the number of hours he or she sleeps. b. There is no significant relationship between a person's age and the number of hours he or she sleeps. c. There is a significant relationship between a person's age and the number of hours he or she sleeps. d. There is no significant difference between a person's age and the number of hours he or she sleeps. 2. What is the df? 3. What is the critical value from the table?
Provide an appropriate response. 1) A local supermarket claims that the waiting time for its customers to be served is the lowest in the area. A competitor's supermarket checks the waiting times at both supermarkets. The sample statistics are listed below. Test the local supermarket's hypothesis. Use a = 0.05. Local Supermarket n1 = 15 Competitor Supermarket n2 = 16 x2 = 5.6 minutes s2 = 1.0 minutes x1 = 5.3 minutes s1 = 1.1 minutes
Find A. Hypothesis and identify claim B. Compute test value C. Find p value D. Make decision E. Summarize results
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3. In 2010, the United Nations claimed that there was a higher rate of illiteracy in men than in women from the country of Qatar. A humanitarian organization tested reading ability in a random sample of Qataris. The results revealed that 45 out of 234 men and 42 out of 251 women were illiterate. Do these results indicate that the United Nations findings were correct? a. State your null and altenative hypotheses. b. If you pool the men and women together, what percent of the overall sample is illiterate? c. Calculate the standard error and draw and label the sampling distribution. d. Calculate a test statistic and P-value. e. Explain what your P-value means in this context. f. If a (alpha) = .1, what do you conclude?
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Follow the 5 steps in hypothesis testing to solve the problem. Show necessary solution. 5 STEPS IN HYPOTHESIS TESTING: Step 1: Null and Alternative Hypothesis Step 2: Statistical Test Step 3: Critical Regions Step 4: Computation Step 5: Decision and Conclusion
create a hypothesis to test Depression among school age children 6yrs.-13yrs.old during the covid-19 quarantine in california. With age, ethnicity, location, and gender as variables. State variables as specifically as possible 2. List the Hypotheses as learned in this class 3.Type of statistical analysis that would be used and explain thoroughly why.
Which of the following represents the correct order of a statistical analysis? Formulate a hypothesis; Gather data; Determine rejection of the null hypothesis Formulate a hypothesis; Determine rejection of the null hypothesis; Gather data Determine rejection of the null hypothesis; Gather data; Formulate a hypothesis Gather data; Formulate a hypothesis; Determine rejection of the null hypothesis
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