Recorded here are the germination times (in days) for 13 randomly chosen seeds of a new type of bean.13, 18, 11, 15, 19, 18, 17, 14, 15, 19, 19, 10, 17Send data to calculatorAssuming that germination times are normally distributed, find a 95% confidence interval for the mean germination time for all beans of this type. Give thelower limit and upper limit of the 95% confidence interval.Carry your intermediate computations to at least three decimal places. Round your answers to one decimal place. (If necessary, consult a list of formulas.)Lower limit:Upper limit:CheckaceDIIAtabesc!1O9@2W#3e$4r%5t6y&

Solution-: Given: c=0.90 (Confidence level) We have following data: xi 13 18 11 15 19 18 17 14…

Answered: Recorded here are the germination times…

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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A random sample of 13 health maintenance organizations (HMOS) was selected. For each HMO, the co-payment (in dollars) for a doctor's office visit was recorded. The results are as follows. 9, 11, 6, 10, 6, 12, 11, 11, 7, 10, 6, 9, 10 Send data to calculator Send data to Excel Under the assumption that co-payment amounts are normally distributed, find a 99% confidence interval for the mean co-payment amount in dollars. Then find the lower limit and upper limit of the 99% confidence interval. Carry your intermediate computations to at least three decimal places. Round your answers to one decimal place. (If necessary, consult a list of formulas.) Lower limit: || Upper limit:
A researcher thinks that life time of light bulb has a normal distribution with mean of 3000 hours and variance of 50 hours. In order to construct 80 confidence interval for the mean life time of light bulb randomly selected 16 sample light bulbs mean value 2850 hours and sample variance is hours. Find the confidence interval. (use 2 decimal point)
27)
Construct a 95% confidence interval for the true mean of city mileage (MPG) of all cars with a manual transmission. Assume that MPG of cars with a manual transmission follows a normal distribution. Also, provide an interpretation of the confidence interval in context. Here is my work so far Manual and Automatic Transmission Total # of Cars = 1129 Total # of Automatic Trans. = 877 Total # of Manual Trans. = 252 Average (Auto) = 18.97948 Average (Manual) = 20.69841 Standard Deviation (Auto) = 8.390146 Standard Deviation (Manual) = 8.565189 Automatic Min: 8 Q1: 15 Median: 18 Q3: 21 Mode: =MAX(B2:B878) = 126 Manual Min: 11 Q1: 18 Median: 20 Q3: 24 Mode: 31
Bilirubin is a yellowish substance in your blood that forms after red blood cells break down and it travels through your liver, gallbladder, and digestive tract before being excreted. Elevated levels may indicate liver damage as your liver isn’t clearing bilirubin properly. A researcher is interested in estimating the mean Bilirubin level for a population of patients with liver disease along with its 90% confidence interval. The researcher collected data from a sample of 24 patients and found the average Bilirubin level is 86.08 with standard deviation 106. However, due to the skewness in the data, a natural logarithm of the data was performed to satisfy normality assumption required for calculating the confidence interval. The resulted 90% confidence interval for the mean Bilirubin level under the natural log transformation is (3.69,4.3). Which one of the following options best helps the researcher in making inference about the true population mean Bilirubin level? a. Based…
A firm applies a skill test to applicants to fill the vacant Quality Engineer position. The company's Human Resources Manager knows that the talent exam scores of candidates applying for this position have been distributed normally with 35.8 standard deviations in the past years. A sample of “n” was taken from the candidates who applied to the position of Quality Engineer and aptitude test of these candidates The mean score was 167.5. Find and interpret the 90% confidence interval for the average of the talent exam scores of the applicants who apply for the Quality Engineering position. . (n = the last two digits of your student number. If the last two digits are zero, choose as a two-digit number)Student ID : 201747201
A random sample of 17 subjects was asked to perform a given task. The time in seconds it took each of them to complete the task is recorded below. 47, 50, 40, 40, 48, 44, 39, 29, 34, 47, 27, 46, 46, 45, 47, 27, 35 Send data to calculator Send data to Excel If we assume that the completion times are normally distributed, find a 95% confidence interval for the true mean completion time for this task. Then find the lower limit and upper limit of the 95% confidence interval. Carry your intermediate computations to at least three decimal places. Round your answers to one decimal place. (If necessary, consult a list of formulas.) Lower limit: | Upper limit:I
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In the past, the mean running time for a certain type of flashlight battery has been 8.1 hours. The manufacturer has introduced a change in the production method and wants to perform a hypothesis test to determine whether the mean running time has changed as a result. This test would be a (a) left-tailed test (b) two-tailed test (c) right-tailed test The test is (Enter a, b, or c)
A random sample of ni = 262 people who live in a city were selected and 104 identified as a "dog person." A random sample of n2 = 117 people who live in a rural area were selected and 50 identified as a "dog person." Find the 99% confidence interval for the difference in the proportion of people that live in a city who identify as a "dog person" and the proportion of people that live in a rural area who identify as a "dog person." Round answers to to 4 decimal places. < pi - P2 -
A sample of 6 credit ratings for car loan applicants has a mean of 602 and a variance of 4356. Use the data toconstruct a 90% confidence interval for the population standard deviation of credit scores for all applicantsfor car loans. What is the Best point estimate and Include the written statement

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