A sample of 125 is drawn from a population with a proportion equal to 0.58. Complete parts a) through c) below.Click here to view page 1 of the cumulative standardized normal distribution table.Click here to view page 2 of the cumulative standardized normal distribution table......a) Determine the probability of observing 71 or fewer successes.P(Observing 71 or fewer successes) =|(Round to four decimal places as needed.)b) Determine the probability of observing 77 or fewer successes.P(Observing 77 or fewer successes) =(Round to four decimal places as needed.)c) Determine the probability of observing 65 or more successes.P(Observing 65 or more successes) =(Round to four decimal places as needed.)

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Answered: A sample of 125 is drawn from a…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

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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Topic 4 Practice Test 1. What characteristics must a normal probability distribution have to be a standard normal probability distribution? 2. Find the shaded area under each standard normal curve shown below: a. a. b. b. 3. Find the z-score corresponding to the shaded area under each standard normal curve shown below: Area = 0.2546 z = -0.9 Area = 0.9798 z = 0.75 z = 1.6
Answer questions number 1,2,3
Which normal distribution curve is the most skewed, according to the following skewness: A B C 0.4 -0.4 0.2
When testing a claim about a population mean with known population standard deviation σ, we use A. Uniform distribution B. Normal distribution C. Binomial distribution D. Student t distribution
d) Which number of minutes per day represents the 70th percentile? (Round to the nearest whole number as needed.)
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can you help answer a. b. c
The lengths of adult males' hands are normally distributed with mean 193 mm and standard deviation is 7.2 mm. Suppose that 45 individuals are randomly chosen. Round all answers to 4 where possible.
a) Briefly explain the main features of the Normal Distribution and how they are used. (Your answer should include the graphical representation, basic terminology, equation and use of the table.) b) Use the probability table to estimate the percentage of values which would be expected to fall within: ±1 standard deviation either side of the mean ±2 standard deviations either side of the mean i) ii) iii) ±3 standard deviations either side of the mean Discuss your findings with the aid of a suitable diagram. c) An engineering company manufactures a product with a mean of 48,000 and a standard deviation of 6,000. Assuming a Normal Distribution, find the probability of a product failing: - i) After less than 47,000 hours ii) After more than 54,000 hours iii) Between 46,000 and 54,000 hours d) After how many hours will 85 out of a batch of 100 products have failed?
Suppose a sample of O-rings was obtained and the wall thickness (in inches) of each was recorded. Use a normal probability plot to assess whether the sample data could have come from a population that is normally distributed. 0.163 0.182 0.194 0.211 0.224 0.225 0.233 0.243 0.251 0.259 0.271 0.273 0.295 0.307 0.317 0.340 Click here to view the table of critical values for normal probability plots. Click here to view page 1 of the standard normal distribution table. Click here to view page 2 of the standard normal distribution table. Using the correlation coefficient of the normal probability plot, is it reasonable to conclude that the population is normally distributed? Select the correct choice below and fill in the answer boxes within your choice. (Round to three decimal places as needed.) A. No. The correlation between the expected z-scores and the observed data, normal population. does not exceed the critical value, Therefore, it is not reasonable to conclude that the data come from…
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