A student was asked to find a 98% confidenceinterval for widget width using data from a randomsample of size n = 26. Which of the following is acorrect interpretation of the interval 14.3 < µ < 28.9?O There is a 98% chance that the mean of asample of 26 widgets will be between 14.3 and28.9.With 98% confidence, the mean width of allwidgets is between 14.3 and 28.9.O There is a 98% chance that the width of thewidget is between 14.3 and 28.9.O The width of all widgets is between 14.3 and28.9, 98% of the time. We know this is truebecause the mean of our sample is between14.3 and 28.9.With 98% confidence, the width of a randomlyselected widget will be between 14.3 and28.9.

ACCORDING TO GIVEN QUESTION WE HAVE ;- 98% confidence interval for widget width is 14.3<μ <…

Answered: was ask ed to a 98% conti nce interval…

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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From a sample with n 36, the mean duration of a geyser's eruptions is 3.72 minutes and the standard deviation is 0.98 minutes. Using Chebychev's Theorem, determine at least how many of the eruptions lasted between 0.78 and 6.66 minutes. of the eruptions lasted between 0.78 and 6.66 minutes. At least (Simplify your answer.)
The ages of a group of 139 randomly selected adult females have a standard deviation of 17.2 years. Assume that the ages of female statistics students have less variation than ages of females in the general population, so let o = 17.2 years for the sample size calculation. How many female statistics student ages must be obtained in order to estimate the mean age of all female statistics students? Assume that we want 98% confidence that the sample mean is within one-half year of the population mean, The required sample size is (Type a whole number.)
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The brain volumes (cm³) of 20 brains have a mean of 1093.1 cm³ and a standard deviation of 120.6 cm³. Use the given standard deviation and the range rule of thumb to identify the limits separating values that are significantly low or significantly high. For such data, would a brain volume of 1284.3 cm³ be significantly high? Significantly low values are cm³ or lower. (Type an integer or a decimal. Do not round.) Significantly high values are 0cm³ (Type an integer or a decimal. Do not round.) Is 1284.3 cm³ significantly high? cm³ or higher. OA. Yes, because it is above the upper limit separating value. OB. No, because it is between the limits separating values. O C. No, because it is above the upper limit separating value. O D. Yes, because it is between the limits separating values. OE. Yes, because it is below the lower limit separating value. OF. No, because it is below the lower limit separating value.
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The brain volumes (cm³) of 20 brains have a mean of 1113.7 cm³ and a standard deviation of 128.9 cm³. Use the give standard deviation and the range rule of thumb to identify the limits separating values that are significantly low or significantly high. For such data, would a brain volume of 1361.5 cm³ be significantly high? 3 Significantly low values are cm³ or lower. (Type an integer or a decimal. Do not round.)
The ages of a group of 134 randomly selected adult females have a standard deviation of 18.2 years. Assume that the ages of female statistics students have less variation than ages of females in the general population, so let o = 18.2 years for the sample size calculation. How many female statistics student ages must be obtained in order to estimate the mean age of all female statistics students? Assume that we want 98% confidence that the sample mean is within one-half year of the population mean. Does it seem reasonable to assume that the ages of female statistics students have less variation than ages of females in the general population? The required sample size is 7194 . (Round up to the nearest whole number as needed.) Does it seem reasonable to assume that the ages of female statistics students have less variation than ages of females in the general population? A. No, because there is no age difference between the population of statistics students and the general population. B.…
The ages of a group of 134 randomly selected adult females have a standard deviation of 18.2 years. Assume that the ages of female statistics students have less variation than ages of females in the general population, so let o = 18.2 years for the sample size calculation. How many female statistics student ages must be obtained in order to estimate the mean age of all female statistics students? Assume that we want 98% confidence that the sample mean is within one-half year of the population mean. Does it seem reasonable to assume that the ages of female statistics students have less variation than ages of females in the general population? The required sample size is. (Round up to the nearest whole number as needed.)
The brain volumes (cm³) of 20 brains have a mean of 1082.3 cm³ and a standard deviation of 125.6 cm³. Use the given standard deviation and the range rule of thumb to identify the limits separating values that are significantly low or significantly high. For such data, would a brain volume of 1353.5 cm³ be significantly high? Significantly low values are cm³ or lower. (Type an integer or a decimal. Do not round.)

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was ask ed to a 98% conti nce interval for widget width using data from a random sample of size n = 26. Which of the following is a correct interpretation of the interval 14.3 < µ< 28.9? A There is a 98% chance that the mean of a sample of 26 widgets will be between 14.3 and 28.9.