In a random sample of 670 Americans, 35% indicated that they have a cat for a pet. Estimate with 96% confidence the proportion of allAmericans that have cats as pets. Give the confidence interval in interval notation, (LCL,UCL) Give your answer as percentages, to at least 2decimal places, and use at least 3 decimal places in your critical value.Confidence Interval:

Answered: Image /qna-images/answer/e4ed4005-5c3d-4aa6-9da2-d30ff48a0c4c.jpg

Answered: In a random sample of 670 Americans,…

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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Z-score for an 88% confidence level
A survey asked, "How many tattoos do you currently have on your body?" Of the 1203 males surveyed, 184 responded that they had at least one tattoo. Of the 1067 females surveyed, 133 responded that they had at least one tattoo. Construct a 99% confidence interval to judge whether the prope one tattoo differs significantly from the proportion of females that have at least one tattoo. Interpret the interval. Let p, represent the proportion of males with tattoos and p, represent the proportion of females with tattoos. Find the 99% confidence interval for p, - P2- The lower bound is The upper bound is (Round to three decimal places as needed.)
Use the confidence interval to find the estimated margin of error. Then find the sample mean. A store manager reports a confidence interval of (46.7,78.3) when estimating the mean price (in dollars) for the population of textbooks. The estimated margin of error is (Type an integer or a decimal.) The sample mean is (Type an integer or a decimal.)
The drug Ziljac is used to treat hypertension. In a clinical test, 3.7% of 420 Ziljac users experienced dizziness. Construct a 99% confidence interval estimate of the percentage of all Ziljac users who experience dizziness. Confidence Interval: ( %, %) Enter percentages correct to two decimal places.
Construct a 96% confidence interval if x=75 and n=200. Round your answers to 3 decimal places.
Suppose you compute a 93% confidence interval. What will happen to the confidence interval if you decrease the confidence level to 91%?
just the multiple choice part thank you!
All patients admitted to a particular hospital can be released on the same day or kept overnight for observation. In a sample of 2550 patients, 1020 were kept overnight for observation What is the point estimate ?̂ for the proportion of all patients kept overnight for observation? Construct a 99% confidence interval for the proportion of all patients kept overnight for observation
A survey asked, "How many tattoos do you currently have on your body?" Of the 1244 males surveyed, 189 responded that they had at least one tattoo. Of the 1016 females surveyed, 136 responded that they had at least one tattoo. Construct a 99% confidence interval to judge whether the proportion of males that have at least one tattoo differs significantly from the proportion of females that have at least one tattoo. Interpret the interval. Let p, represent the proportion of males with tattoos and p, represent the proportion of females with tattoos. Find the 99% confidence interval for p, - p2. The lower bound is The upper bound is (Round to three decimal places as needed.) Interpret the interval. O A. There is 99% confidence that the difference of the proportions is in the interval. Conclude that there is insufficient evidence of a significant difference in the proportion of males and females that have at least one tattoo. O B. There is 99% confidence that the difference of the…
In a survey of 356 people who attended a local professional soccer teams most recent home game, 135 said that they were fans of the visiting team. Create a 95% confidence interval for the population proportion of attendees who were fans of the visiting team. Round your answer to 3 decimals places
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