Using image attached A. Fill in blanks B. What are the null and alternative hypothesis? C. Find the test statistic, z0 D. Find the P-Value A certain drug can be used to reduce the acid produced by the body and heal damage to the esophagus due to acid reflux. The manufacturer of the drug claims that more than 94% ofpatients taking the drug are healed within 8 weeks. In clinical trials, 214 of 226 patients suffering from acid reflux disease were healed after 8 weeks. Test the manufacturer's claim atthe a=0.01 level of significance.Because npo (1-Po)for testing the hypothesis(Round to one decimal place as needed.)10, the sample size issatisfied.www5% of the population size, and the samplecan be reasonably assumed to be random,the requirementscannot be reasonably assumed to be random,is given to not be random,is given to be random,

Answer: From the given data, X = 214 and n = 226 Significance level (α) = 0.01 The manufacture…

Answered: A certain drug can be used to reduce…

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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The p-value for a hypothesis test turns out to be 0.05015. At a 2% level of significance, what is the proper decision? Reject H0H0 Fail to reject H0
A public opinion poll surveyed a simple random sample of voters. Respondents were classified by gender (female or male) and by voting preference (Republican, Democrat, or Independent). The results are presented here: Republican 250 200 Female Male You want to determine if gender and voting preference are independent. Use a level of significance of a = 0.05. Are the requirements met for this hypothesis test? Explain. O Yes. A random sample was used, and all expected counts are greater than or equal to 5. O Yes. A random sample was used, and all observed counts are greater than or equal to 5. O No. A random sample was used, but at least one of the expected counts is less than 5. O No. A random sample was not used. Democrat 300 150 Independent 50 50
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Failing to reject an invalid null hypothesis (continuing to incorrectly assume a null is valid) is called: the beta-risk. the level of confidence. the level of significance. the power of the test. the alpha-risk.
A six-sided die is rolled 120 times. Fill in the expected frequency column. Then, conduct a hypothesis test to determine if the die is fair using 5% significant level. The data in the following table are the result of the 120 rolls. Face Value Frequency Expected Frequency 1 15 2 29 3 16 4 15 5 30 6 15 What are the null and alternate hypotheses?
Test the claim that the proportion of people who own cats is smaller than 70% at the 0.05 significance level. Based on a sample of 100 people, 69% owned catsThe test statistic is: ? (to 2 decimals)The p-value is: ? (to 2 decimals)
16
last box is? or is not?
Below indicate whether the appropriate test would be an independent t-test, dependent t-test, One-way ANOVA, or z-test. A researcher studying psychological well-being between children from single-parent vs. two-parent families recruits 20 children from two-parent families and 20 children from single-parent families and measures their psychological adjustment.
A marketing agency wanted to determine if a new commercial changed people's opinion about a company. They recruited n=30 participants to watch the commercial. First, everyone was givien a survey to determine their attitudes toward the company. Then, everyone watched the new commercial. Finally, they were given the same survey again and asked about their attitudes toward the comapny after seeing the commercial. The agency wanted to see if attitudes were changed by the commercial. What statistical test should they use?
This procedure enables us to decide with the statistical hypothesis. a.Statistical hypothesis b.Level of confidence c.Test of the hypothesis d.Null hypothesis choose the best answer thank you so much
Teat the claim abouy the population mean, u, at the given level of significance, a, using the given sample statistics. Claim:u=50; a=0.05; o=3.11. Sample statistics: x=48.4, n=71. i) Identify the null and alternative hypothesis. (Do not forget to find the standardized test statistic and critical values) ii) Determine tge outcome and conclusion of the test.

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