Name two major errors in the following graded test question, and give the correct answer.
X WRONG SEE ME!
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Chapter 11 Solutions
Finite Mathematics and Applied Calculus (MindTap Course List)
- For the following question, type the solutions to each part of the question in the space provided at the bottom of the question. Make sure you label each part of the question very carefully: 14% of all Americans suffer from sleep apnea. A researcher suspects that a different percentage of those who live in the inner city have sleep apnea. Of the 306 people from the inner city surveyed, 58 of them suffered from sleep apnea. What can be concluded at the level of significance of α = 0.10? a. What is the appropriate test to be used for this study? b. State the Null and Alternative hypotheses c. Compute the test statistic d. Find the p-value e. Should the Null Hypothesis be rejected or not? Why? f. State the conclusion of the test in the context of the problem. g. Interpret the p-value in the context of the study. h. Interpret the level of significance in the context of the study.arrow_forwardSay you get a z-score of z = -1.21. Find 2 * Pr(Z ≥ |z|)arrow_forwarda is equal to 0.1arrow_forward
- Which of the following most closely approximates the estimated standard error, where n = 21 with SS = 2450? 122.5 116.7 2.42 2.36arrow_forwardIn a computer instant messaging survey, respondents were asked to choose the most fun way to flirt, and it found that P(D)=0.590, where D is directly in person. If someone is randomlyselected, what does PD represent, and what is its value? What does PD represent?arrow_forwardfor d how can you calculate the p value without excel? need to be able to do on a test without excel or statkey. It is also saying the answer is incorrect. P does not equal 0.036arrow_forward
- Persons having Raynaud's syndrome are apt to suffer a sudden impairment of blood circulation in fingers and toes. In an experiment to study the extent of this impairment, each subject immersed a forefinger in water and the resulting heat output (cal/cm2/min) was measured. For m = 9 subjects with the syndrome, the average heat output was x = 0.61, and for n = 9 nonsufferers, the average output was 2.09. Let ?1 and ?2 denote the true average heat outputs for the sufferers and nonsufferers, respectively. Assume that the two distributions of heat output are normal with ?1 = 0.3 and ?2 = 0.5. (a) Consider testing H0: ?1 − ?2 = −1.0 versus Ha: ?1 − ?2 < −1.0 at level 0.01. Describe in words what Ha says, and then carry out the test. Ha says that the average heat output for sufferers is the same as that of non-sufferers.Ha says that the average heat output for sufferers is less than 1 cal/cm2/min below that of non-sufferers. Ha says that the average heat output for sufferers is more…arrow_forwardAmish State Oil claims their gasoline additive increases fuel economy. Miles per gallon (MPG) for 15 identical vehicles were obtained and results are listed below in column one. These vehicles were given the gasoline additive and the MPG results are listed in column two. Find p and state your conclusion whether Amish State Oil’s claim is true, using a= 0.05.arrow_forwardone organization in the dataset has a z-score of z = -2.5. How many did this organization recruit? (hint, this is where you need to use algebra to solve the z-score formula for x)arrow_forward
- Mathematics For Machine TechnologyAdvanced MathISBN:9781337798310Author:Peterson, John.Publisher:Cengage Learning,Algebra & Trigonometry with Analytic GeometryAlgebraISBN:9781133382119Author:SwokowskiPublisher:Cengage