A newspaper stated that 40% of UHD students take online courses. A random sample of 12 UHD students istaken.Find the probability that at most 3 UHD students take online courses.0.2250.9170.0830.0540.1420.999

Step 1:From given data,P(x≤3)40% of UHD students take online courses.p=0.40 Sample of 12 UHD student…

Answered: A newspaper stated that 40% of UHD…

Essentials Of Investments

11th Edition

ISBN:9781260013924

Author:Bodie, Zvi, Kane, Alex, MARCUS, Alan J.

Publisher:Bodie, Zvi, Kane, Alex, MARCUS, Alan J.

Chapter1: Investments: Background And Issues

Section: Chapter Questions

Problem 1PS

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Suppose all incoming freshmen at a private college must take an entrance exam. Suppose the scores have normal distribution with a mean of U = 420 and standard deviation of σ = 95. (Show your work by indicating what calculator commands and input you use to find your answers. Round your answer to 1 decimal place.) No Work No Crédit. 1. If a student scores in the bottom 8%, they must attend summer school. What would a student have to score to avoid summer school? Sketch a corresponding normal curve in your solution. Interpret your answer in a complete sentence. 2. If a student scores in the top 4%, they get a free vacation in Hawaii. What would a student have to score to get the vacation? Sketch a corresponding normal curve in your solution. Interpret your answer in a complete sentence.
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A scientist claims that pneumonia causes weight loss in mice. The table shows the weights (in grams) of six mice before infection and two days after infection. At α = 0.05, is there enough evidence to support the scientist's claim? Assume the samples are random and dependent, and the population is normally distributed. Complete parts (a) through (e) below. Mouse Weight (before) Weight (after) 5 6 1 2 3 4 22.9 23.1 21.1 20.1 19.1 20.1 21.5 22.3 20.3 19.6 18.1 19.0 U. Pneumonia causes weight loss in mice. Let μd be the hypothesized mean of the difference in the weights (before-after). What are Ho and H₂? A. Ho Hd 20 H₂- P 2015 ○ C. t (c) Calculate d and sd- (Round to three decimal places as needed.) a HP #0 GAV OC. Ho Hd #0 Ha d=0 OE Ho Hd ≤d Ha->d
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17. In Year 1, Better Sleep Company began to receive complaints from physicians that patients were experiencing unexpected side effects from the company's sleep apnea drug. The company took the drug off the market near the end of Year 1. During Year 2, the company was sued by 1,000 customers who had had a severe allergic reaction to the company's drug and required hospitalization. At the end of Year 2, the company's attorneys estimated a 60 percent chance the company would need to make payments in the range of $1,000 to $5,000 to settle each claim, with all amounts in that range being equally likely. At the end of Year 3, while none of the cases had been resolved, the company's attorneys now estimated an 80 percent probability the company would be required to make payments in the range of $2,000 to $7,000 to settle each claim. In Year 4, 400 claims were settled at a total cost of $1.2 million. Based on this experience, the company believes 30 percent of the remaining cases will be…
It is hypothesized that, of the students completing their degree in physical therapy in the state of Georgia, 35% of them take a job in Georgia, 38% take a job in a neighboring state, while the rest take a job further away. A random sample of 86 students graduating with a degree in physical therapy in Georgia over the last 10 years are selected and 40 of them took a job in-state, 22 of them took a job in a neighboring state, and the rest of them took a job in a state further away. What value represents the expected frequency for PT graduates who took a job in a neighboring state? If needed, round your answer to two decimal places.

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A newspaper stated that 40% of UHD students take online courses. A random sample of 12 UHD students is taken. Find the probability that at most 3 UHD students take online courses. 0.225 0.917 0.083 0.054 0.142 0.999