CHI-SQUARE TESTThe Chi-square test will be used to compare phenotypic values derived from the actual crosses to theexpected values from the theoretical crosses. This test is a simple statistical test to evaluate the amount of deviationfrom the expected equal frequency ratio in cach class The chi-square test can be used to test any ratio goodnessof fit. The calculated chi-square value is obtained by the formula: X =E (O-E)/E. Where,O- observed number on the actual cross; observed valueE- calculated or expected frequency (from the corresponding theoretical cross)E- summation symbol which means that you'll have to perform a calculation for every single data item inyour data set.ОВJЕСTIVESThe students should be able to:a. To compare phenotypic data derived from actual crosses to expected values using the Chi-square testb. To be able to interpret the results of chi-square values derived from computations of monohybrid crossesMATERIALSObserved data from the Monohybrid experiment (Results of the experiments from the previous batch)PROCEDURE:A. Given the observed values below, is there an agreement between the expected and observed ratios? Doesit fit the 3:1 ratio? State the reason behind.Phenotypes (Purple is dominant Observed valuesover yellow corn)Purple corn17552Yellow corn1|PageB. Given the observed values below, is there an agreement between the expected and observed ratios? Doesit fit the 3:1 ratio? State the reason behind.Phenotypes (Purple is dominant Observed valuesover yellow corn)Purple cornYellow corm17652C. Given the observed values below, is there an agreement between the expected and observed ratios? Doesit fit the 3:1 ratio? State the reason behind.Phenotypes (Purple is dominant Observed valuesover yellow corn)Purple cormYellow corn22732

Chi square test is a parametric test. It is used to estimate whether there is any relationship…

Answered: A. Given the observed values below, is…

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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The length of fish were measured at 3 different lakes. Lake 1: 3.5, 4.2, 6.1, 5.2 Lake 2: 3.1, 3.2, 4.3, 2.1 Lake 3: 5.6, 7.1, 4.4, 4.1, 6.2 Is there evidence to suggest that the average length is not the same at all 3 locations? Group of answer choices There is not evidence to suggest the average length of fish is different at one of the lakes. There is evidence to suggest that the average length is different at one of the lakes. Enter the test statistic (to 4 decimal places)
The average house has 14 paintings on its walls. Is the mean larger for houses owned by teachers? The data show the results of a survey of 14 teachers who were asked how many paintings they have in their houses. Assume that the distribution of the population is normal. 15, 13, 16, 16, 17, 14, 14, 15, 13, 13, 15, 16, 15, 16 What can be concluded at the a = 0.01 level of significance? a. For this study, we should use Select an answer b. The null and alternative hypotheses would be: Но: ? Select an answer v H: ?v Select an answer v c. The test statistic ? v = (please show your answer to 3 decimal places.) d. The p-value = (Please show your answer to 4 decimal places.) e. The p-value is ? va f. Based on this, we should Select an answer v the null hypothesis. g. Thus, the final conclusion is that ... O The data suggest that the population mean number of paintings that are in teachers' houses is not significantly more than 14 at a = 0.01, so there is insufficient evidence to conclude that…
What is one indication that there are paired samples in a data set? Choose the correct answer below. O A. Knowing the value that a subject has in one group gives one no information about the value in the second group. OB. Each observation in one group is coupled with one particular observation in the other group. OC. The researcher is comparing two populations. O D. The researcher is working with two distinct groups in the data set.
A researcher wanted to test whether there is a relationship between preferred sweet (Oreo cookies, Mars bars, or Twinkies) and age group (children, adolescents, or young adults). To test that, subjects from the three age groups were asked which of the three sweets they preferred. Which statistical test should be used to analyze the data? 1. chi square test of independece 2. chi square test for goodness of fit 3. one sample t test 4. one way anova test
If Ashley wants to test for GPA differences among first-, second-, third-, and fourth-year college students, which of these difference tests should she use? A. chi-square test of independence B. between-subjects, two-way ANOVA C. between-subjects, one-way ANOVA D. repeated-measures ANOVA
A survey was developed to estimate the average number of hours per week that adults spend exercising. Every third person entering a large fitness complex was surveyed, with a total of 2,500 people being surveyed. The data showed that the mean number of hours spent exercising was 3.2 hours per week. Which characteristic of the survey could create a bias in the results? The size of the sample The size of the sample The method of analyzing the data The method of analyzing the data The method of choosing the people who were surveyed The method of choosing the people who were surveyed The size of the population
We want to determine if the percent of home runs hit by left-handed batters is greater than that of right-handed batters. What type of test should be used? OTwo sample z-test OTwo sample t-test O Single sample z-test Single sample t-test
A recent article in the Journal of Urban Chicken Farmers reported the fraction of chickens that experience severe, moderate, or minor side effects from a new diet are 0.07, 0.15, and 0.78 respectively. Assuming that chickens respond independently, if 18 chickens were tested on the new diet, what is the: 3. a. Mean number of chickens that will suffer severe side effects? b. Variance in the number of chickens that will suffer severe side effects? C.Conditional mean of the number of chickens that suffer severe side effects given that 17 suffer minor side effects.
Using a pooled sample estimator, o , assumes the two populations have O A. different means. O B. the same mean. O C. the same variance. O D. different variances.
An analysis of variance produces SSbetween = 75 and MSbetween = 15. In this analysis, how many treatment conditions are being compared? Select one: a. 3 b. 4 c. 5 d. 6
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