A survey askıng mobile phone users how long they would wat for a page to load found the following results. Find theprobabilities that a person would wait the following amounts.Time (Seconds)Percentage<14%(a) No more than 10 seconds(b) At least 6 seconds(c) Between 6 and 20 seconds, inclusive(d) Between 1 and 15 seconds, inclusive1-514%6-1028%11-1517%16-2014%>2023%

Answered: Image /qna-images/answer/351f60d3-c536-4215-8c72-6d0360671825.jpg

Answered: A survey asking mobile phone users how…

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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According to a 2009 Reader's Digest article, people throw away about 10% of what they buy at the grocery store. Assume this is the true proportion and you plan to randomly survey 122 grocery shoppers to investigate their behavior. What is the probability that the sample proportion does not exceed 0.14? Answer = (Enter your answer as a number accurate to 4 decimal places.)
A population proportion is 0.5. Suppose a random sample of 658 items is sampled randomly from this population. what is the probability that the sample proportion is between 0.53 and 0.56? What is the probability that the sample proportion is less than 0.49?
According to Reader's Digest, 50% of primary care doctors think their patients receive unnecessary medical care. Use the z-table. a. Suppose a sample of 390 primary care doctors was taken. Show the sampling distribution of the proportion of the doctors who think their patients receive unnecessary medical care. E(p)= (to 2 decimals) (to 4 decimals) b. What is the probability that the sample proportion will be within +0.03 of the population proportion? Round your answer to four decimals. c. What is the probability that the sample proportion will be within 10.05 of the population proportion? Round your answer to four decimals. d. What would be the effect of taking a larger sample on the probabilities in parts (b) and (c)? Why? The probabilities would -Select your answer - This is because the increase in the sample size makes the standard error, ,- Select your answer - ✪
The table below shows the results of a survey about a junk food tax. Support Oppose Unsure Male 184 363 16 Female 291 358 28 A person is selected at random from the sample. What is the probability that a person opposes the tax or is female? Your answer should be a decimal (not a percent) correct to three decimal places.
If the probability of 5% movement within 1 week is 95%, what is the weekly movement range with the probability of 99.8%?
p= .3313 n= 77 p-hat= .5 What is the probability that of the 77 people selected more that 50% will have a cat at home.
You have conducted a series of experiments to reduce the proportion of scrapped battery cells to 1% in your manufacturing plant. What is the probability of testing 51 cells without finding a defect until the last cell? What probability distribution did you employ in reaching the answer?
Adult men's heights are normally distributed with m = 70 inches and s = 2.6 inches. What is the probability that a randomly selected man will have a height more than 77 inches? Excel Worksheet-1.xlsx Click to open: O.0035 O.0143 O .0559 O.1033 O something else
According to a 2009 Reader's Digest article, people throw away about 14% of what they buy at the grocery store. Assume this is the true proportion and you plan to randomly survey 135 grocery shoppers to investigate their behavior. What is the probability that the sample proportion does not exceed 0.19? Answer = (Enter your answer as a number accurate to 4 decimal places.)
what do part b and part f say? I'm unsure what all the words say.
A textile manufacturing process finds that on average, three flaws occur per every 50 yards of material produced. What is the probability that exactly 2 flaws occur in a 50 yard piece of material? Round your answer to three decimal places with a zero to the left of the decimal. E.g., 12% would be 0.120, and 0.15551 would be 0.156.
Trevor is interested in purchasing the local hardware/sporting goods store in the small town of Dove Creek, Montana. After examining accounting records for the past several years, he found that the store has been arossina over $850 per day about 55% of the business days it is open. Estimate the probability that the store will aross over $850 for the following. (Round your answers to three decimal places. (a) at least 3 out of 5 business davs (b) at least 6 out of 10 business days (c) fewer than 5 out of 10 business days (d) fewer than 6 out of the next 20 business days (e) more than 17 out of the next 20 business days

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