According to work done by Nick Wilson of Otago University Wellington, the proportion ofindividuals who cover their month when sneezing is 0.733. As part of a school project,Mary decides to confirm this by observing 100 randomly selected individuals sneeze andfinds that 78 covered their mouth when sneezing. At the a = 0.01 level of significance.a. What are the hypotheses for Mary's project?b. Verify the requirement for this hypothesis testingc. Does the sample evidence contradict Professor Wilson's? Explain.

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Answered: a. What are the hypotheses for Mary's…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

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Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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please answer a, b, c
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?
Members of the Town of Colonie Golfers’ Loop frequently raise concerns to Mr. Lange, as its leader, about how the league is run. The most frequent concern raised is that the teams competing each week are not statistically even. In other words, members raise concerns that one or more teams have a statistical advantage over other teams. To evaluate the validity of these claims, Mr. Lange has decided to use a mix of statistical hypothesis tests discussed in this course to evaluate the teams from Outing #14 in calendar-year 2016 (2016, #14). One is the Equal Vari- ances F Test, one is Welch’s T Test, and the other is the 2-Sample T Test for Equal Means. In this particular outing, seven teams were competing for the win. A random sample of eight prior scores from each team member was collected, and the summary statistics are shown below (correct to three decimal places). team sample size sample mean sample variance 1 24 76.500 14.522 2 32 79.656 18.233…
You wanted to know whether eating fatty foods is related to obesity. a) Formulate your null and alternative hypothesis. b) Explain how a type 1 and type 2 error may be committed in this study base on your hypothesis in letter a.
What are the two decisions that you can make from performing a hypothesis test? What are the two decisions that you can make from performing a hypothesis test? Select all that apply. A. reject the alternative hypothesis B. make a type I error C. accept the alternative hypothesis D. reject the null hypothesis E. accept the null hypothesis F. fail to reject the alternative hypothesis G. fail to reject the null hypothesis H. make a type II error
Give introduction to Hypothesis Testing?
a. Identify the null and alternative hypotheses for this test. Choose the correct answer below. b. Identify the test statistic for this hypothesis test. c. Identify the P-value for this hypothesis test. d. Identify the conclusion for this hypothesis test. e. Do the results support the belief that 51.3% of newborn babies are boys?
Researchers conducted an experiment to test the effects of alcohol. Errors were recorded in a test of visual and motor skills for a treatment group of 23 people who drank ethanol and another group of 23 people given a placebo. The errors for the treatment group have a standard deviation of 2.40, and the errors for the placebo group have a standard deviation of 0.78. Assume that the two populations are normally distributed. Use a 0.05 significance level to test the claim that both groups have the same amount of variation among the errors. Let sample 1 be the sample with the larger sample variance, and let sample 2 be the sample with the smaller sample variance. What are the null and alternative hypotheses? OA. H₂:0² = 0²/2 OB. H₂:0² = 0²/2 H₁: 0²/12 #02/22 H₁:0² > 0²/2 ỌC Họỏi cơ OD. Ho: 0²/02/2 H₁:0² <0² H₁:0² = 0²/2 Identify the test statistic. (Round to two decimal places as needed.) Use technology to identify the P-value. (Round to three decimal places as needed.)
p2. answer only pls 10. what is the null hypothesis 11. what is the alternative hypothesis 12. what is the claim, the null hypothesis or the alternative hypothesis 13. what type of test to use 14. what is the level of significance? 15. what is the degrees of freedom
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a. What are the hypotheses for Mary's project? b. Verify the requirement for this hypothesis testing c. Does the sample evidence contradict Professor Wilson's? Explain.