Suppose that a difference between two groups mean is examined. In the language of statistics, the alternativethypothesis (H) is a statement that is there is.no difference between the population means .ANone of these .B O.a difference between the population means.C O.no difference between the sample means .D Oa difference between the sample means .E O

We have to formulate the alternative hypothesis to test the diffrence between two groups.

Answered: Suppose that a difference between two…

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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Scenario: 200 people were asked, “Who is your favorite superhero?” Below are the data. Test the null hypothesis that the population frequencies for each category are equal. α= .05. Iron Man Black Panther Wonder Woman Spiderman fo = 40 fo = 60 fo =55 fo = 45 fe = fe = fe = fe = What is the correct result based on the data?
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Given a data set, how do you know whether to calculate o or s? Choose the correct answer below. O A. When given a data set, one would have to determine if it represented the population or if it was a sample taken from the population. If the data are a population, then o is calculated. If the data are a sample, then s is calculated. O B. If the given data set contains a large number of entries, then s is calculated. If the data set contains a small number of entries, then o is calculated. O C. If the given data set contains a large number of entries, then o is calculated. If the data set contains a small number of entries, then s is calculated. O D. When given a data set, one would have to determine if it represented the population or if it was a sample taken from the population. If the data are a population, then s is calculated. If the data are a sample, then o is calculated.
Suppose the null hypothesis is rejected. State the conclusion based on the results of the test. Six years ago, 11.4% of registered births were to teenage mothers. A sociologist believes that the percentage has increased since then. Which of the following is the correct conclusion? O A. There is sufficient evidence to conclude that the percentage of teenage mothers has remained the same. O B. There is sufficient evidence to conclude that the percentage of teenage mothers has increased. O C. There is not sufficient evidence to conclude that the percentage of teenage mothers has remained the same. O D. There is not sufficient evidence to conclude that the percentage of teenage mothers has increased.
our question: $ 4 R V 4) There shouldn't be a blood group difference between men and women as blood group type is not dependent on sex. However, you want to determine if there is any evidence to doubt this. You go out and collect the following data on blood types: Sex % Blood type 5 T G B Can you find a significant difference in blood types based on sex? Make sure you clearly state Ho, H₁, etc. Also clearly write out your decision and what it means. Q Search 6 A B Y AB O Male 128 23 14 131 & U 8 Female 159 33 18 161 N M | K H J K 9 O ▶11 O Course: BIOL 214 L P dele back
Problem The following data are for 30 observations involving two categorical variables, x and y. The categories for x are A, B, and C; the categories for y are 1 and 2. Show steps in Excel. a. Develop a crosstabulation for the data, with x as the row variable and y as the column variable. b. Compute the row percentages. c. Compute the column percentages. d. What is the relationship, if any, between x and y? Observation x y 1 A 1 2 B 1 3 B 1 4 C 2 5 B 1 6 C 2 7 B 1 8 C 2 9 A 1 10 B 1 11 A 1 12 B 1 13 C 2 14 C 2 15 C 2 16 B 2 17 C 1 18 B 1 19 C 1 20 B 1 21 C 2 22 B 1 23 C 2 24 A 1 25 B 1 26 C 2 27 C 2 28 A 1 29 B 1 30 B 2
It is always suggested for researchers that when describing the categorical distribution of variables it is better to use percentages rather than frequencies because Select one: O A. it is easier to compute the percentages. O B. Using percentages is an easier way to determine the weight of each category relative to the total. C. Percentages is a language that is understood by most common people. O D. Options B, and C O . All options A,B, and C
Definitions. Define each of the following concepts. Where relevant, be sure to say what each is used for. Also, where relevant, give examples. a) Expected Cell Frequencies: b) Scatterplot:
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The agriculture extension office wants to test the claim that GMO carrots are longer than Organic carrots. What kind of hypotheisis test is this? O 1 Proportion z-test 2 Proportions z-test 1 Mean t-test 2 Means Matched Pairs t-test 2 Independent Means t-test Which hypotheses do we want to test? O Họ: H1 = H2 HẠ: H1= H2 O Họ: H1 = H2 HA: H1 = H2 O Ho: H1 = H2 HA: H1> H2 O Ho: H1 = H2 HA: H1< H2
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