Express the confidence interval 81.6 % + 6.4 % in the form of an inequality.Fill in blanks with percentages rounded to one place after the decimal.%

The given confidence interval is 81.6% ± 6.4%

Answered: Express the confidence interval 81.6 %…

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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79
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.)
Fill in the blank. The procedure for constructing a confidence interval about a mean is ______ , which means minor departures from normality do not affect the accuracy of the interval.
7
Construct a confidence interval of the population proportion at the given level of confidence. x=120, n=1200, 96% confidence What is the lower bound of confidence? What is the higher bound of confidence?
percentage may be now, so a of 250 of last year's freshmen 4. 78% of all to in Fall 2015. You think that the a and tind that 84% returned, www.csun.edu/counts/one_year_continuation_rate-plip a. What is p? _ What is the number of successes? What is n? b. Write the hypotheses: Circle the best definition of p. the proportion of all of last year's freshmen who returned the proportion of all 2014 CSUN freshmen who returned the proportion of all CSUN freshmen among the 250 who returned C. Assuming that Ho is true, the sampling distribution of p has a mean of Use the formula to compute the SE of the sampling distribution of p. Complete this sketch of the sampling distribution of p. Put a scale on the horizontal axis. Then locate the result from the sample and shade in area representing the p-value. (Is the area representing the p-value on one side or two sides?) Use StatCrunch to find the p-value for this situation. e. Is there statistically significant evidence that the percentage is…
Use the confidence interval to find the estimated margin of error. Then find the sample mean. A store manager reports a confidence interval of (43.1,81.9) 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.)
Write your answer in the p +- e notation. A study found that out of 39,700 drivers that went through a traffic intersection, 794 ran a red light. Construct a 90% confidence interval to estimate the proportion of people who ran the light. We will use estimation using confidence intervals. This time we will be using estimation of proportion. x ____________ n ____________ p hat ___________ C-level ___________
True or false- The interquartile range is the distance between the lowest score and in the middle 50% of the distribution, and the highest score in the middle 50% of the distribution.
An occurrence sampling study of students in the classrooms concluded that 40% of the students wear shorts to class in May. What is the range of values within which you feel the true percentage lies if (a) absolute accuracy is 10% and (b) relative accuracy is 10%?
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Express the confidence interval 126.3 ± 51.5 in the form of a trilinear inequality. < l <

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Express the confidence interval 81.6 % + 6.4 % in the form of an inequality. Fill in blanks with percentages rounded to one place after the decimal. %