Explain what "98% confidence" means in a 98% confidence interval,What does "98% confidence" mean in a 98% confidence interval?O A. If 100 different confidence intervals are constructed, each based on a different sample of sizen from the same population, then we expect 98 of the intervals to include the parameter and 2 to not include the parameter.O B. The probability that the value of the parameter lies between the lower and upper bounds of the interval is 98%. The probability that it does not is 2%.O C. The confidence interval includes 98% of all possible values for the parameter.O D. The value of the parameter lies within 98% of a standard deviation of the estimate.O Time Remaining: 02:19:13NextMacBook ProG Search or type URLesc&#3%247841TY

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Answered: Explain what "98% confidence" means in…

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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Which interval is which? Matilda constructed three confidence intervals, all from the same random sample. The confidence levels are 95%, 98%, and 99.9%. The confidence intervals are I. 5.2 <µ<6.8 II. 5.5<µ<6.5 III. 5.4 <µ<6.6 Unfortunately, Matilda has forgotten which confidence interval has which level. Match each confidence interval with its level. 5.2 <µ<6.8 is the (Choose one) confidence interval. 95% 5.5
Explain which would result in a wider large-sample confidence interval for p: a 90% confidence level or a 95% confidence level? (Hint: Consider the confidence interval formula.) a. For any given sample, the 90% confidence interval is wider than the 95% confidence interval because the z critical value for a 90% confidence interval is smaller than the z critical value for a 95% confidence interval. b. For any given sample, the 90% confidence interval is wider than the 95% confidence interval because the z critical value for a 90% confidence interval is larger than the z critical value for a 95% confidence interval. c. For any given sample, the 95% confidence interval is wider than the 90% confidence interval because the z critical value for a 95% confidence interval is smaller than the z critical value for a 90% confidence interval. d. For any given sample, the 95% confidence interval is wider than the 90% confidence interval because the z critical value for a 95% confidence interval…
You are interested in constructing a 90% confidence interval for the proportion of all caterpillars that eventually become butterflies. Of the 371 randomly selected caterpillars observed, 49 lived to become butterflies. Round answers to 4 decimal places where possible. With 90% confidence the proportion of all caterpillars that lived to become a butterfly is between ____ and ____ If many groups of 371 randomly selected caterpillars were observed, then a different confidence interval would be produced from each group. About _____ percent of these confidence intervals will contain the true population proportion of caterpillars that become butterflies and about ____ percent will not contain the true population proportion.
Three hundred randomly selected people were asked a Yes or No question. The resulting 95% confidence interval for the proportion of Yes responses in the population is(.201, .299). How many people in the sample of 300 responded Yes? ______
You are interested in constructing a 90% confidence interval for the proportion of all caterpillars that eventually become butterflies. Of the 427 randomly selected caterpillars observed, 45 lived to become butterflies. a. Use 3 decimal places to complete the following statement: With 90% confidence the proportion of all caterpillars that lived to become a butterfly is between and . b. If many groups of 427 randomly selected caterpillars were observed, then a different confidence interval would be produced from each group. About percent of these confidence intervals will contain the true population proportion of caterpillars that become butterflies and about percent will not contain the true population proportion.
You are interested in constructing a 95% confidence interval for the proportion of all caterpillars that eventually become butterflies. Of the 390 randomly selected caterpillars observed, 60 lived to become butterflies. Round answers to 4 decimal places where possible. a. With 95% confidence the proportion of all caterpillars that lived to become a butterfly is between and . b. If many groups of 390 randomly selected caterpillars were observed, then a different confidence interval would be produced from each group. About percent of these confidence intervals will contain the true population proportion of caterpillars that become butterflies and about percent will not contain the true population proportion.
Which interval is which? Alessandro constructed three confidence intervals, all from the same random sample. The confidence levels are 90%, 95%, and 99%. The confidence intervals are I. 7.4<μ<8.6 II. 7.1
A box model is used to calculate a confidence interval in the following scenario: Statistics club at TYHS wants to know the average time students in TYHS spent on preparing for their standardized exams. They sampled 100 students from TYHS. They want to construct a confidence interval for the average time that students in TYHS spent on preparing for their standardized exams. For each of the following quantities in the box model, select the answer if the quantity is random, not fixed. Leave the quantities that are fixed unselected. Group of answer choices. You can select more than one answer the proportion of 0's in the box model the EV and SE of the sample average the average time of every student in TYHS spent on preparing for their standardized exams the sample average of students spent on preparing for their standardized exams
You are interested in constructing a 99% confidence interval for the proportion of all caterpillars that eventually become butterflies. Of the 431 randomly selected caterpillars observed, 50 lived to become butterflies. Round answers to 4 decimal places where possible. a. With 99% confidence the proportion of all caterpillars that lived to become a butterfly is between___ and___ . b. If many groups of 431 randomly selected caterpillars were observed, then a different confidence interval would be produced from each group. About____ percent of these confidence intervals will contain the true population proportion of caterpillars that become butterflies and about ____ percent will not contain the true population proportion.
You are given the sample mean and the population standard deviation. Use this information to construct the 90% and 95% confidence intervals for the population mean. Interpret the results and compare the widths of the confidence intervals. From a random sample of 74 dates, the mean record high daily temperature in a certain city has a mean of 82.58° F. Assume the population standard deviation is 14.82°F. The 90% confidence interval is (Round to two decimal places as needed.) The 95% confidence interval is ( I). (Round to two decimal places as needed.) Which interval is wider? Choose the correct answer below. The 95% confidence interval The 90% confidence interval
Which is true about a 95% confidence interval for a population proportion based on a given sample? A There is a 95% chance that the true sample proportion is in the middle of our interval. There is a 5% chance that our Interval does not contain the population proportion. C The Interval Is wider than a 90% confidence Interval would be. none of these is true.
Explain what "98% confidence" means in a 98% confidence interval. What does "98% confidence" mean in a 98% confidence interval? CHU OA. If 100 different confidence intervals are constructed, each based on a different sample of size n from the same population, then we expect 98 of the intervals to include the parameter and 2 to not include the parameter. OB. The confidence interval includes 98% of all possible values for the parameter OC. The probability that the value of the parameter lies between the lower and upper bounds of the interval is 98%. The probability that it does not is 2% OD. The value of the parameter lies within 98% of a standard deviation of the estimate.

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