Which one of the following is NOT a correct formula for calculating the expected counts for a goodness-of-fit test? (Choose all that apply) O a) E=n/k, where n is the total sample size and k is the number of categories and if we assume that all of the expected frequencies are equal. b) E=nk, where n is the total sample size and k is the number of categories and if we assume that all of the expected frequencies are equal. c) E=p/n, where n is the sample size and p is the observed frequency of each category and if we do not assume that all of the expected frequencies are equal. d) E=np wheren is the total sample size and p is the observed frequency of each category and if we do not assume that all of the expected frequencies are equal.

Which one of the following is NOT a correct formula for calculating the expected counts for a goodness-of-fit test? (Choose all that apply) O a) E=n/k, where n is the total sample size and k is the number of categories and if we assume that all of the expected frequencies are equal. b) E=nk, where n is the total sample size and k is the number of categories and if we assume that all of the expected frequencies are equal. c) E=p/n, where n is the sample size and p is the observed frequency of each category and if we do not assume that all of the expected frequencies are equal. d) E=np wheren is the total sample size and p is the observed frequency of each category and if we do not assume that all of the expected frequencies are equal.

Name: Which one of the following is NOT a correct formula for calculating t
Uploaded: 2024-03-20T06:38:44.000Z
Channel: Bartleby
Description: Which one of the following is NOT a correct formula for calculating the expectedcounts for a goodness-of-fit test? (Choose all that apply)O a) E=n/k, where n is the total sample size and k is the number of categories andif we assume that all of the

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

See similar textbooks

Similar questions

Selection bias occurs when O the population has been divided into strata cluster sampling is used instead of stratified random sampling O portions of the population are excluded from the consideration for the sample those responding to a survey or poll differ systematically from the nonrespondents
k) The severity of a certain related disease according to different blood groups were studied in a health care research. The findings are as shown in the following table. Can the severity of the disease and blood group be associated? State an appropriate set of hypotheses and test them at the 5% level of significance. You can use the spaces in the table to fill in expected frequencies you calculate in the space below the table. Blood Group A Condition |ТOTAL AB B Severe Moderate 105 Mild Total 51 40 10 100 103 25 17 250 334 527 125 104 1140 1500 540 670 160 130
The average final exam score for the statistics course is 76. A professor wants to see if the average final exam score for students who are given colored pens on the first day of class is higher. The final exam scores for the 11 randomly selected students who were given the colored pens are shown below. Assume that the distribution of the population is normal. 72, 57, 82, 52, 72, 73, 67, 61, 66, 52, 77 The null and alternative hypotheses would be: Hn: ?v Select an answer Ha: ? Select an answer V
Dr. Garcia is curious about her teaching skills. To investigate, her class takes an anatomy quiz. The population average for the anatomy quiz is 15. What can be concluded with a = 0.10? The quiz scores for a random sample from the class are: 16, 17, 18, 16, 19, 15, 18. a) What is the appropriate test statistic? --Select-- b) Population: |---Select--- Sample: ---Select-- c) Obtain/compute the appropriate values to make a decision about Hn. Critical Value = ; Test Statistic = Decision: ---Select--- d) If appropriate, compute the CI. If not appropriate, input "na" for both spaces below. e) Compute the corresponding effect size(s) and indicate magnitude(s). If not appropriate, input and/or select "na" below. d = ; Magnitude: --Select--- ; Magnitude: --Select--- 2 = f) Make an interpretation based on the results. O Quiz scores for the class were significantly higher than the population. O Quiz scores for the class were significantly lower than the population. O Quiz scores from the class…
Null and alternative hypotheses are statements about A sample statistics. B) sample parameters. c) it depends - sometimes population parameters and sometimes sample statistics. D population parameters
Student's t distribution is the same for different sample sizes. a) true b) False
Explain the difference between a stratified sample and a cluster sample. (Select all that apply.) In a stratified sample, random samples from each strata are included In a stratified sample, every sample of size n has an equal chance of being included. In a stratified sample, the clusters to be included are selected at random and then all members of each selected cluster are included In a cluster sample, every sample of size n has an equal chance of being included. In a stratified sample, the only samples possible are those including every kth item from the random starting position In a cluster sample, the only samples possible are those including every kth item from the random starting position In a cluster sample, the clusters to be included are selected at random and then all members of each selected cluster are included. In a cluster sample, random les from each strata are included.
last school year the student body of local univ. consisted of 24 percent of freshman 20 percent sophmore 32 percent junior and 18 percent seniors. A sample of 400 students taken from this year's student body showed the following number of students in each class freshman 113 sophmores 98 juniors 115 seniors 74 is there a significant change in the classifications between the last school year and this school year what is the expected number of sophmores? 104 128 98 72 96
Qu In goodness of fit test (proportions test): If k= 25 (number of different categories) and the sample size (n) =500, then expected frequency for each category, assuming all categories are of same size, is: 8 Select one: 15 O a. 15 O b. 20 Fini O c.0.04 Tim O d. 10 Next page ge
A random sample of people from four ethnic groups were taken for a study. The table shows the results for the mean number of times a month a person eats out. Assume that all distributions are normal, the four population standard deviations are approximately the same, and the data were collected independently and randomly. a) What is the p-value? b) At the 5% significance level, are the mean number of times a month a person eats out the same for whites, blacks, Hispanics and Asians?