MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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- Kindly solve it as soon as possiblearrow_forwardRecherchers conducted two surveys about teens are their use of social media. The First survey asked a Random sample of 800 U.S. teens about their use of Instagram. A second survey asked the same question to a Random sample of 2253 Canadian teens. In these two studies. 73% of U.S. teens and 88% of Canadian teens said that they use instagram. Use these results to answee the following questions about the proportion of U.S. and Canadian teens that use instagram. (Round to the nearest whole hundredth as needed).arrow_forwardA marketing company is interested in the proportion of people that will buy a particular product. Match the vocabulary word with its corresponding examplearrow_forward
- A drug company claims that an allergy medication causes headaches in 5% of those who take it.A medical researcher believes that more than 5% of those who take the drug actually get headaches. Identify the population(s): All individuals who take the medication. The proportion of those who take the drug who get a headache. What is the variable being examined for individuals in the population(s)? Whether or not an individual who does not take the drug gets a headache. Whether or not an individual takes the correct dosage of the drug. Whether or not an individual who takes the drug gets a headache. Is it categorical or quantitative? [Proportions are Categorical. Mean values are Quantitative.] Categorical Quantitative Identify the parameter(s): The proportion of those who take the drug who get a headache. The mean amount of medication taken. The number individuals who take the medication. What kind of hypotheisis test is this? 1 population mean 2 population means 2…arrow_forwardA software company is interested in improving customer satisfaction rate from the 74% currently claimed. The company sponsored a survey of 113 customers and found that 90 customers were satisfied.arrow_forwardIn politics, marketing, etc. we often want to estimate a percentage or proportion p. One calculation in statistical polling is the margin of error - the largest (reasonble) error that the poll could have. For example, a poll result of 72% with a margin of error of 4% indicates that p is most likely to be between 68% and 76% (72% minus 4% to 72% plus 4%). In a (made-up) poll, the proportion of people who like dark chocolate more than milk chocolate was 44% with a margin of error of 2.2%. Describe the conclusion about p using an absolute value inequality. The answer field below uses the symbolic entry option in Mobius. That lets you type in a vertical bar | to represent absolute values. Also, when you type in and then =, the symbolic entry option will automatically convert that to >.arrow_forward
- Thirty-two percent of all Americans drink bottled water more than once a week (Natural resources Defense Council, December 4, 2015). Suppose you have been hired by the Natural Resources Defense Council to investigate bottled water consumption in St. Paul. You plan to select a sample of St. Paulites to estimate the proportion who drink bottled water more than once a week. Assume the population proportion of St. Paulites who drink bottled water more than once a week is 0.32, the same as the overall proportion of Americans who drink bottled water more than once a week. E(p bar) = Based upon a sample of 540 St. Paulites, what is the probability that the sample proportion will be within 0.08 of the population proportion (to 4 decimals). Probability = Suppose you select a sample of 230 St. Paulites. Show the sampling distribution of p bar (to 4 decimals). Based upon a smaller sample of only 230 St. Paulites, what is the probability that the sample proportion will be within 0.08 of the…arrow_forwardApproximately 21% of music lovers like Country Music. Of those who do, 97% do not have mild brain damage.What percent of music lovers like Country and have Brain Damage?arrow_forwardPlease help answering this one:arrow_forward
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