Q2.1 ColonoscopyA colonoscopy is a medical procedure used to detect abnormalities in the large intestine. It is usedto find and remove precancerous polyps in the colon before they become cancerous. Separaterandom samples of people with and without cancer were taken and the number of people who hada colonoscopy were counted. Specific information is provided in the table.ColorectalCancerNoColorectal 4123CancerSave AnswerDo these data provide evidence that there is a difference in the population proportions of peoplewho have had a colonoscopy in these groups?Q2.2 ConditionsSampleSize3550Hypotheses:Write the appropriate hypotheses, including defining the parameters and identifying the subscriptsappropriately. (Note: you are not required to use Greek letters. For example, writing sigma issufficient for σ.)Save AnswerHad aColonoscopy344Q2.3 MechanicsConditions:Explain how the Normal condition for this test has been met.288Save AnswerMechanics:Perform the mechanics using your calculator and in the space provided report all relevant results.Q2.4 Decision Linked in ContextWrite your decision linked in context (use alpha = 5%):

Sample SizeHad a ColonoscopyColorectal Cancer3550344No Colorectal Cancer4123288

Answered: Q2.1 Colonoscopy A colonoscopy is a…

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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Assets in billions of dollars of the four wealthiest people are 36, 30, 21, and 19 with a sample size of 2 what is the mean of the population
Rain Simpson, Alsen, and Eden (Technometrics 1975)report the results of trials in which clouds were seededand the amount of rainfall recorded. The authors reporton 26 seeded and 26 unseeded clouds in order of the amount of rainfall, largest amount first. Here are two pos-sible tests to study the question of whether cloud seeding works. Which test is appropriate for these data? Explainyour choice. Using the test you select, state yourconclusion.Paired t-Test of m11 - 22Mean of Paired Differences = -277.39615t-Statistic = -3.641 w>25 df p = 0.00122-Sample t-Test of m1 - m2Difference Between Means = -277.4t-Statistic = -1.998 w>33 df p = 0.0538a) Which of these tests is appropriate for these data?Explain.b) Using the test you selected, state your conclusion.
Researchers wondered whether the size of a person's brain was related to the individual's mental capacity. They selected a sample of 5 females and 5 males and measured their MRI image pixel counts and IQ scores. Females Males MRI IQ MRI IG The data is reported to the right. Complete parts (a) through (d) below 139 858,472 140 955,003 935,494 924,059 1.079.550 1,001.121 Click the icon to view the critical values table. 991,305 138 141 857,782 833,868 790,619 133 135 132 141 135 140 AMRI 1,080,000- AIO 145 AIO 145- AMRI 1,080,000 780,000 130 130 780,000 130 780,000 780,000 130 1,080,000 145 1,080,000 MRI 145 MRI (b) Compute the linear correlation coefficient between MRI count and IQ. Are MRI count and IQ linearly related? Select the correct choice below and, if necessary, fill in the answer box to complete your choice. (Round to three decimal places as needed.) A. Yes, MRI count and IQ are linearly related since the linear correlation coefficient is O B. No. MRI count and IQ are not…
The Histogram shows the number
Use the standard normal table to find the z-score that corresponds to the cumulative area 0.0072. If the area is not in the table, use the entry closest to the area. If the area is halfway between two entries, use the z-score halfway between the corresponding z-scores. Click to view page 1 of the standard normal table. LOADING... Click to view page 2 of the standard normal table. LOADING... z=enter your response here (Type an integer or decimal rounded to three decimal places as needed.)
ou are doing a problem where you have a negative z-score, and you have to look up the proportion of the shaded area in the tail beyond that z-score; in other words, you are shading to the left from your z-score, and looking for the proportion that you shaded. Four “proportions” are given below. Which one is the ONLY one that could potentially be the number you are looking for? (Hint: Think about what you know about proportions: What kind of number are they? And what things can they represent?) Group of answer choices p = 0.3800 p = -0.1500 p = 1.1500 p = 0.5635
Driving test You are about to take the road test for yourdriver’s license. You hear that only 34% of candidatespass the test the first time, but the percentage rises to72% on subsequent retests.a) Create a plan for a simulation to estimate theaverage number of tests drivers take in order to geta license.b) Here are results of 100 trials of a simulation. Use theseresults to estimate the average number of tests driverstake in order to get a license.
Number of Number of patients lesions Cholestyramine group Placebo group 64GAONTO 3 5 7 8 >10 Total 5 4 6 5 7 8 4649 00 6 7 2 60 2 4 6 697524 8 57 You have a choice between Poisson and negative binomial distributions, as possible models for the number of lesions in the cholestyramine group. Using the x²-test check which distribution better fits the data (e.g., results in smaller chi-square statistic). For the negative binomial use r=4 and p = 0.44, and for the Poisson use λ = 4.6.
Carmen and Rosanna are two employees in an electronics store. The store manager has put an emphasis on increasing the number of applications for the store credit card. The manager randomly selected 24 weeks for each employee and recorded the number of completed applications for each week, which is provided in the samples below. Each employee completed 21 applications in one of the weeks selected. Use Excel to calculate each employee's z-score for completing 21 applications. Round your answers to two decimal places. Carmen Rosanna11 56 1115 613 185 1114 1416 521 208 1110 97 1416 1513 1310 619 2118 95 1817 310 126 1712 1214 419 1017 8
Looking at the histogram, would you say the data for heartrate is normally distributed?
Hi could you answer whats blank?

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