4. A statistic is said to be unbiased ifA) both the person who calculated the statistic and the subjects whose responses make upthe statistic were truthful.B) the survey used to obtain the statistic was designed so as to avoid even the hint ofracial or sexual prejudice.C) the mean of its sampling distribution is equal to the true value of the parameter beingestimated.D) the sampling distribution is narrow.E) none of the above.

Given data : A statistic is said to be unbiased if A) both the person who calculated the statistic…

Answered: 4. A statistic is said to be unbiased…

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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Similar questions

If the population of ABM students of Malaya Integrated High School has a mean of 12.45,what is the mean of the sampling distribution of its mean?(HINT:?=?̅ )
1. Consider the following sample of numbers: 1, 4, 5, 4, 3, 4, 7, 8, 5, 9, 12, 13, 11, 2. (a) Find the sample mean. (b) Find the sample standard deviation.
1. Suppose the proportion of American adults who work at home is 40%. For a random sample of 100 American adults, what is the distribution of the sample proportion?
Consider the following random sample of data: -7, 5, -1, -1, 8, 1, 7, -4, 8, 80 a) What is the mean of the sample data? Round your response to at least 2 decimal places. Number b) If the outlier is removed, what is the mean of the remaining sample data? Round your response to at least 2 decimal places. Number
Consider the following random sample of data: 5, 10, 2, 4, 4,-4, -7, -5, 8, 84 a) What is the mean of the sample data? Round your response to at least 2 decimal places. Number b) If the outlier is removed, what is the mean of the remaining sample data? Round your response to at least 2 decimal places. Number
Consider the following two datasets: A = { 5 , 23 , 8 , 12 , 4 , 21 } and B = { 20 , 10 , 16 , 1 , 18 , 8 , 4 } . select all correct options The sample medians of the datasets are equal. The sample means of the datasets are not equal The sample means of the datasets are equal. The ranges of the datasets are equal. The sample medians of the datasets are not equal.
Q1. For each of the studies described in questions a) and b), indicate the appropriate statistical test for analyzing the relationship between the variables. Assume that the underlying assumptions of the tests have been satisfied. a) A researcher tested the relationship between college students’ need for achievement as assessed on a 20-item test and their grade point averages. Explain your decision. b) A consumer psychologist studied the relationship between gender and preference for Ford, Chevrolet, and Chrysler cars. One hundred men and 100 women were interviewed and asked which make they preferred. Explain your decision. c) A person who claims to have psychic powers tries to predict the outcome of a roll of a die on each of 100 trials. He correctly predicts 21 rolls. Using an alpha level of 0.05 as a criterion, what should we conclude about the person’s claim?
One cable company advertises that it has excellent customer service. In fact, the company advertises that a technician will be there within 30 minutes of when a service call is placed. One frustrated customer believes this is not the truth, claiming that it takes over 30 minutes for the cable repairman to arrive. The customer asks 15 of his neighbors how long it has taken for the cable repairman to arrive when they have called for him. The sample mean for this group is 32.2 minutes with a sample standard deviation of 3.6 minutes. Test the customer’s claim at the 0.02 level of significance. (a) State the null and alternative hypotheses (b) Find the value of your test statistic. Draw a picture and label its location on the normal curve. Also shade the area where you will find the p-value. (c) Calculate the p-value from the sample data. Compare it to the significance level. Label it’s value and location on your bell curve (d) Write a full…
"Which of the following best describes a sample in statistics? A) The entire group of individuals or instances about whom we hope to learn B) A subset of the population used to represent the entire group C) The variable being measured in a study D) The procedure used to collect data"
Construct a sample (with at least two different values in the set) of 5 measurements whose mean is equal to the median. If this is not possible, indicate "Cannot create sample".

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