Question 2 Write the number that corresponds to the correct answer.Specify the null and the alternative hypotheses.Hg : μ = 175, Η :μ >175Hoμ=172, H₁:μ#1751.2.3.4.5.Hoμ175, H₁ μ<175Ho:μ =172, Η :μ <175Hoμ=175, H₁ μ<175 Hypertension is a long-term medical condition in which the blood pressure in the arteries is persistentlyelevated. In elderly patients with hypertension, a high systolic pressure can cause a fainting episode, soXtransporting them to an emergency clinic is imperative. Let be the systolic blood pressure of elderlypatients with hypertension on arrival at the emergency clinic after a fainting episode. A random sample ofsuch patients was considered. The measurements of each patient, in mm Hg, are given below. At the 5%level of significance, can we conclude from the data in this sample that the mean systolic blood pressure ofall elderly hypertensive patients transported to an emergency clinic after a fainting episode is smaller than175 mm Hg?patient123456789101112131415X166178153157178158153169182155151195202169157patient161718192021222324252627282930X173161155154178200168196180191167170161191166patient313233343536373839404142434445X167163157201204159154192162182165190154150194patient464748495051525354555657585960x1821961691581801991821781611701681581591691631

From the provided information, Sample size (n) = 60 Level of significance (α) = 0.05

Answered: Question 2 Write the number that…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

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Research Question: Do 60% of student prefer iPhone and 40% prefer Android? A Lecturer is interested in the type of Mobile phone students use. He surveyed a sample of 45 male and female students and asked them whether they use iPhone or Android. IPhone Android Total Observe 25 20 45 Perform an appropriate hypothesis test to answer the above research question. -Enter the values for H0. H0:π1= π2= -The alternate hypothesis is: (Choose from A or B or C) A. H0:π1≠π1≠ 0.6 B. The proportions are not as stated C. Something else From the following sample, calculate the expected number in each group (to two decimal places) and place your answers in the boxes provided. iPhone Android Total Observed Expected 25 ? 20 ? 45 45 The assumption is: Choose from below -The boxplots indicate that the samples are fairly symmetric and the spreads are similar, so we can assume both sets of data come from normal distributions with…
A test of hypothesis was conducted with the following information: Ho: MA MB = 0 MA-MB H₁: MA - MB > 0 The p-value is 0.023. If a=0.02, make your conclusion on the above hypothesis. If a=0.01, would your conclusion be the same? Explain.
Determining the Hypotheses The national average SAT score is roughly 1500. We would like to examine if the high school seniors who apply to Duke have higher than average SAT scores. We randomly sample 100 Duke applicants' files and record their SAT scores. Which of the following is the correct set of hypotheses for this research question? H0: μ = 1500; HA: μ > 1500 H0: μ = 1500; HA: μ < 1500 H0: p = 1500; HA: p > 1500 H0: x = 1500; HA: x > 1500 H0: μ = 1500; HA: μ ≠ 1500
Find the p-value to test ?0H0: ?=45σ=45 ?1H1: ?<45σ<45 and the test statistic is 13.125 with n=15.
A highway department is studying the relationship between traffic flow and speed. The following model has been hypothesized: y =B₁ + B₁x + 8 where y = traffic flow in vehicles per hour x = vehicle speed in miles per hour. The following data were collected during rush hour for six highways leading out of the city. Traffic Flow Vehicle Speed (y) (x) 1,257 35 1,330 40 1,225 30 1,334 45 1,348 50 1,126 25 In working further with this problem, statisticians suggested the use of the following curvilinear estimated regression equation. ŷ = bo + b₂x + b₂x² (a) Develop an estimated regression equation for the data of the form ý = bo + b₁x + b₂x². (Round bo to the nearest integer and b₁ to two decimal places and b₂ to three decimal places.)
Use Excel to determine whether the variables mentioned in the two problems below are independent or not. Clearly state the 4 steps in Hypothesis Testing as discussed: Step 1: The hypotheses are written in words. Step 2: Find the alpha in the problem Step 3: Make a screenshot of the Excel calculations are results as shown in the video. Step 4: Make a decision based on the value found in Step 3 and make a conclusion. 2. The side effects of a new drug are being tested against a placebo. A simple random sample of 565 patients yields the results below. At a significance level of α = 0.05, is there enough evidence to conclude that the treatment is independent of the side effect of nausea? Result Drug Placebo TOTAL Nausea 36 13 49 No nausea 254 262 516 TOTAL 290 275 565
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Express the null hypothesis and the alternative hypothesis in symbolic form. Use the correctsymbol (µ, Ε, Η) for the indicated parameter. A psychologist claims that more than 5.8 percent of thepopulation suffers from professional problems due to extreme shyness. Use p, the true percentageof the population that suffers from extreme shyness.
Refer questions to image - What is the appropriate test to answer this question? - The null and alternative hypotheses are(choose from below) H0: π = 0.7, H1: π ≠ 0.7 H0: β = 0, H1: β ≠ 0 H0: μ = 0, H1: μ ≠ 0 H0: μ = 70, H1: μ ≠ 70 H0: μ1- μ2 = 0, H1: μ1- μ2 ≠ 0 - How can you justify the assumption for this test? (choose from below) -Since nπ and n(1-π) are both ≥5, the Central Limit Theorem applies and we can assume that p arises from a normal distribution -The shape of the histogram indicates that the scores may be from a normal distribution and/or the sample size is reasonably large so the sample mean will be from a normal population -The boxplots indicate that the samples are fairly symmetric and the spreads are similar, so we can assume both sets of data come from normal distributions with the same spread -The points are randomly scattered around a straight line, so the assumptions of linearity and constant spread are satisfied. The shape of the histogram indicates that…
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Question 2 Write the number that corresponds to the correct answer. Specify the null and the alternative hypotheses. Ho:μ=175, H₂u>175 1. Ho:μ=172, H₁:μ*175 2. 3. 4. 5. Ho: 175, H₁ μ<175 Ho:u=172, H₁ μ<175 Hoμ=175, H₁: μ<175