Current Attempt in ProgressHow Many Household Cats Hunt Birds?"Domestic cats kill many more wild birds in the United States than scientists thought," states a recent article.¹ Researchers usedsample of n = 140 households in the US with cats to estimate that 35 % of household cats in the US hunt outdoors.1Milius, S., "Cats kill more than one billion birds each year," Science News, 183(4), February 23, 2013, revised March 8, 2014. Datapproximated from information give in the article.Part1Your answer is incorrect.(a) Find a 90 % confidence interval for the proportion of household cats in the US that hunt outdoors.Round your answers to three decimal places.The 90% confidence interval iseTextbook and Mediaitoi

Let p be the population proportion of household cats in the US hunt outdoors.Given that,No. of…

Answered: "Domestic cats kill many more wild…

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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Thirty-five 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 Defence 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 popluation proportion of St. Paulites who drink bottled water more than once a week is 0.35 , the same as the overall proportion of Americans who drink bottled water more than once a week. Suppose you select a sample of 540 St. Paulites. Show the sampling distribution of “p with a line over it” (to 4 decimals). E(p with a line over it) = 0` p with a line over it = 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 190 St. Paulites. Show the sampling…
You collect information on a random sample of women and obtain estimates on vitamin D exposure. However, the results that you find are different than those conducted at another study site. Should you be concerned? Explain your answer using the concept of sampling variability
TV streaming subscription platforms have been taking over the entertainment industry. It is estimated that one-third of Filipinos qualify as "subscription streamers" i.e., those who watch streamed TV programs through a subscription service such as Netflix, Amazon Prime Video, or iflix. A recent poll included 2232 adult TV viewers, of which 785 are subscription streamers. Based on this result, can you conclude that the true fraction of adult TV viewers who are subscription streamers differs from one- third? Carry out the test using a Type l error rate of 0.05. (1) Critical Values (Round off to 3 decimal places): (2) Test Statistic (Round off to 2 decimal places): (3) Conclusion: (Type 'Reiect HO' or 'Fail to Reiect HO')
5. Suppose that 68% of all adults think that airplanes would be safer places if airline passengers were banned from carrying on board any luggage, including purses, computers, and briefcases. An opinion poll plans to ask an SRS of 1023 adults about airplane safety. The proportion of the sample who think that airplanes would be safer if passengers were banned from carrying on board any luggage, including purses, computers, and briefcases, will vary if we take many samples from this same population. The sampling distribution of the sample proportion is approximately Normal with mean 0.68 and standard deviation about 0.015. Sketch this Normal curve and use it to answer the following question. Round to nearest tenth percent. What is the probability of getting a sample in which more than 70% think that airplanes would be safer if passengers were banned from carrying on board any luggage, including purses, computers, and briefcases?
A poll in Canada states that 67% of all respondents favor imposing the death penalty. The poll was considered accurate within 4.7 percentage points 95% of the time. How large was the sample size? Round up to the nearest whole number.
An article was published concerning the incidence of cardiac death attributable to earthquake in Los Angeles County on January 17, 1994. In the week before the earthquake there were an average of 15.6 cardiac deaths per day in Los Angeles County. On the day of the earthquake, there were 51 cardiac deaths. Among days with more than 10 admissions, what proportion fall on weekends?
According to an article in Newsweek, the natural ratio of girls to boys is 100:108. In Turkey, the birth ratio is 100: 118 (45.8% girls). Suppose you do not believe the reported figures of the percent of girls born in Turkey. You conduct a study. In this study, you count the number of girls and boys born in 140 randomly chosen recent births. There are 50 girls and 90 boys born of the 140. Based on your study, do you believe that the percent of girls born in Turkey is 45.8?
18. The governor of New York has banned selling or purchasing "large" soft drinks, where a "large" is defined as being more than 16 oz. Sonic, famous for its Route 44 drinks is interested in estimating the proportion of New Yorkers that favor this ban. From a random survey of 800 New Yorkers, 375 answered no to the question, “Do you favor the governor's ban on 'large' soft drinks?" a. Find a 97.5% confidence interval for the proportion of New Yorkers who favor the ban on "large" soft drinks. b. Interpret the confidence interval. c. Can you conclude with 97.5% confidence that a majority of New Yorkers favor the ban on "large" soft drinks? Why or why not. d. Without doing any other calculations, can you be 99% confident that a majority of New Yorkers favor the ban on “large" soft drinks?

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"Domestic cats kill many more wild birds in the United States than scientists thought," states a recent article.¹ Researchers used sample of n = 140 households in the US with cats to estimate that 35 % of household cats in the US hunt outdoors.