12.62 14.31 10.71 12.49 7.26 11.65 12.43 12.03 14.00 13.82 a) If the population distribution is normal, state the minimum variance unbiased estimator of the mean. Then compute the corresponding point estimate. Round your answer to 3 decimal places. b) Write down the formula for the standard error of X. Is it possible to obtain the standard error of X? I yes, perform the computations and round your answer to 3 decimal places. Otherwise, explain why it is not possible to do so. c) Write down the formula for the estimated standard error of X. Is it possible to obtain the estimated standard error of X? If yes, perform the computations and round your answer to 3 decimal places. Otherwise, explain

12.62 14.31 10.71 12.49 7.26 11.65 12.43 12.03 14.00 13.82 a) If the population distribution is normal, state the minimum variance unbiased estimator of the mean. Then compute the corresponding point estimate. Round your answer to 3 decimal places. b) Write down the formula for the standard error of X. Is it possible to obtain the standard error of X? I yes, perform the computations and round your answer to 3 decimal places. Otherwise, explain why it is not possible to do so. c) Write down the formula for the estimated standard error of X. Is it possible to obtain the estimated standard error of X? If yes, perform the computations and round your answer to 3 decimal places. Otherwise, explain

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

A simple random sample is taken from a population and yields the following data for a variable of the population. 37 36 16 16 19 31 Find a point estimate for the population standard deviation (that is, the standard deviation of the variable). 12 26 39 9 A point estimate for the population standard deviation is (Round to two decimal places as needed.)
Air handling: The mean lifetime of a handheld leaf blower is reported to be 250 hours. A lawncare technician believes the actual lifetime to be less than 250 hours. A test is made of Ho:u=250 versus H₁ u<250. The null hypothesis is rejected. State an appropriate conclusion. There (Choose one) enough evidence to conclude that the mean lifetime is (Choose one) ▼250 hours. X 5 00 B
For random samples from an infinite population, whathappens to the standard error of the mean if the samplesize is(a) increased from 30 to 120;(b) increased from 80 to 180;(c) decreased from 450 to 50;(d) decreased from 250 to 40?
15,16
Pls help ASAP ASAP.
Maxwell’s hot chocolate is concerned about the effect of the year-long coffee advertising campaign on the chocolate sales. The weekly hot chocolate sales from 15 locations (in this year) is collected and summarized in the following table. Descriptive Statistics N Sum Range Minimum Maximum Mean Std. Deviation Variance Sales 15 --- --- 20 197 24.80 3.53 12.46a) Calculate the missing values in the table (Sum and Range)b) The average sales was $26.6 last year and the manager of the firm claim that there is a decrease in the sales this year. Does the data provide sufficient evidence to support the claim of the manager at 1% significance level? Show your calculations in detail and interpret the result.
Let a population consist of the values 7 cigarettes, 21 cigarettes, and 22 cigarettes smoked in a day. Show that when samples of size 2 are randomly selected with replacement, the samples have mean absolute deviations that do not center about the value of the mean absolute deviation of the population. What does this indicate about a sample mean absolute deviation being used as an estimator of the mean absolute deviation of a population? Calculate the mean absolute deviation for each possible sample of size 2 from the population. Sample Mean Absolute Deviation {7,7} __ {7,21} __ {7,22} __ {21,7} __ {21,21} __ {21,22} __ {22,7} __ {22,21} __ {22 ,22}
Integrate x2 between -1 and 3 between using both the stone throwing approach and the mean value approach. For m=1 & N=1000, what do you observe if you plot N vs calculated value of the function for both methods? For N=102, 103,104, 105, 106 and m=16 plot the N vs absolute error for both methods. What relationship fits this distribution of points? Comment on what you observe Now plot N against the Standard Deviation (the Variance) for both methods and comment on what you observe.
(Q2) Please answer correctly and fastly. Thanks
In order to use the defining formula for variance, we must calculate (x − x)2 for each data value in the data set 14, 18, 22, 26, 33. Use the values in the data set and the mean x = 22.6 to fill out the following table. x 14 18 22 26 33 x 22.6 22.6 22.6 22.6 22.6 x − x 14 − 22.6 = −8.6 18 − 22.6 = __________ 22 − 22.6 = −0.6 26 − 22.6 = _________ 33 − 22.6 = 10.4 (x − x)2 73.96 __________ 0.36 ________ 108.16
Let a population consist of the values 11 cigarettes, 12 cigarettes, and 22 cigarettes smoked in a day. Show that when samples of size 2 are randomly selected with replacement, the samples have mean absolute deviations that do not center about the value of the mean absolute deviation of the population. What does this indicate about a sample mean absolute deviation being used as an estimator of the mean absolute deviation of a population? Calculate the mean absolute deviation for each possible sample of size 2 from the population. Mean Absolute Deviation Sample {11,11} {11,12} {11,22} {12,11} {12,12} {12,22} {22,11} {22,12} {22,22} (Type integers or decimals rounded to one decimal place as needed.) Budget Pi nd Pow....P Enter your answer in the edit fields and then click Check Answer. Clear All Check Answer parts
4000 B.C. A.D. 150 A study was done on skull sizes of humans during different time periods. The results are shown in the table. Assume that the two samples are independent simple random samples selected from normally distributed populations, and do not assume that the population standard deviations are equal. Complete parts (a) and (b) below. H2 27 27 131.05 mm 133.94 mm S 5.18 mm 5.27 mm a. Use a 0.05 significance level to test the claim that the mean skull breadth in 4000 B.C is less than the mean skull breadth in A.D 150. What are the null and alternative hypotheses? O B. Ho: H1 =H2 O A. Ho: H1 =H2 H:H1> H2 OC. Ho: H1 = H2 H1: H1 # H2 O D. Ho: H1 # H2 H: H1