A group of researchers wondered whether vegetarians favored different seasons than non-vegetarians. Theresearchers took a random sample of people and surveyed them about their favorite season and whetheror not they were vegetarian. Here are the responses and partial results of a chi-square test (expectedcounts appear below observed counts):Chi-square test: Dietary restrictions vs.favorite seasonVegetarianNot vegetarianTotalFall78848.475.6Spring55646.457.6Summer1513314814.8133.2Winter58646.457.6Total36324360They want to use these results to carry out a r- test of independence. Assume that all conditions for inference were met.What are the values of the test statistic and P-value for their test?22 = 1.941;0.15< P-value <0.20x= 1.941:P-value> 0.25

We have to conduct a Chi - square test of independence.

Answered: What are the values of the test…

Math

Statistics

What are the values of the test statistic and P-value for their test?

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

Related questions

Q: What is the positive predictive value ppv)? Use this in a sentence explaining to a person the…

Q: test statistic and P vaule?

A: Consider the following: Friday the 6th Friday the 13th Difference = Friday the 6th - Friday the…

Q: What is the role of the sample size in the determination of confidence interval? Explain.

A: Let us first define sample size and confidence interval. Sample size: It is determination of the…

Q: Hello, I need help with sign tests and how to find the test statistic and p-value.

A: A nonparametric test is a hypothesis test that does not require any specific conditions concerning…

Q: A new treatment for a certain disease is claimed to be effective in more than 80 % of cases . To…

A: In question, Given A new treatment for a certain disease is claimed to be effective in more than 80…

Q: Estimate the p-value for this test.

A: The test statistic is 2.600. The degrees of freedom is, df=r-1c-1=3-13-1=2×2=4 The degrees of…

Q: How do I calculate a 95% confidence level for a sample proportion in excel? Meaning, what formula…

A: Given : Confidence level = CL = 95% = 0.95

Q: The performance of students at a local community was recorded and categorized based on student’s…

A: Low Average High Total Science 12 30 52 94 15.67 29.24 49.09…

Q: Periodically, Merrill Lynch customers are asked to evaluate Merrill Lynch financial consultants and…

Q: what is reliability (personality measure) and does people take interest in it?

A: Personality instruments measures samples of behaviour . Their evaluation involves primarily the…

Q: How does the mean age of employees affect their performance? Why is there a need to strictly…

A: It is given to determine whether or not the mean age of employees affect their performance.

Q: what is an example of test measure for validity?

A: Mathematically, the validity coefficient measures the validity of a test which is related to…

Q: wrong answer for letter c, it was asking the LOWER quartile.

A: Percent of calories consume by Americans follow normal distribution with mean 36 and standard…

Q: there are two part for the question, I want the answer for the test statistics and the P- Value…

A: From the given technology display Sample mean (x̅) = 2.84243 Standard error (SE) = 0.247671 Sample…

Q: Explain the situations of independent samples t-test vs. paired-sample t-test?

A: Independent samples t-test vs. paired-sample t-test.

Q: One personality test available on the World Wide Web has a subsection designed to assess the…

A: We have given that Mean(µ) = 140 Sample mean (x̅) = 134 Standard deviations (s) = 28

Q: What type of statistic test would I perform for this questions, Is there a relationship between…

A: Chi-square test: A single simple random sampling is done with each individual being classified…

Q: B. There is no significant difference between the perceived level of riskiness of rebellious…

A: Given Data : Mean : Males = Sum / n = 20.533/10 = 2.0533 Mean : Females = Sum / n = 17.791/10 =…

Q: Using the p-value method, should be rejected at the level of significance? Why or why not?

A: We performed t-test for difference between two means assuming equal variances in Excel. Test…

Q: The National Football League (NFL) is an American sports league where 32 of the world's premier…

A: First lets's sort the data as 2, 2, 3, 3, 4, 4, 5, 6, 6, 6, 7, 7, 7, 7, 8, 8, 9, 9,…

Q: (a) What are the null hypothesis H. and the alternative hypothesis H, that should be used for μ the…

A: Null and alternative hypotheses: Null hypothesis: Null hypothesis is a statement which is tested for…

Q: Explain ways in which we use the independent sample t-test vs. paired sample t-test?

A: Independent sample t-test vs. paired sample t-test

Q: Hello, I need help with sign tests and finding the test statistic and p values.

A: A nonparametric test is a hypothesis test that does not require any specific conditions concerning…

Q: What does it mean to have a positively or negatively skewed result to a research study? What are…

A: The Skewness of any distribution is the measure of symmetry of the distribution. It tells the…

Q: The data in the Table below are a sample of 25 patients discharged from Regional Referral Hospital…

A: Given information: ID no. Duration of hospital stay Age Sex First temp. following admission First…

Q: According to the Bureau of Transportation Statistics, on-time performance by airlines is described…

A: Given information: Action % of time Observed frequency(O) On Time 71 141 National Aviation…

Q: What is the degree of freedom for this test?

A: In this case, it is needed to check whether the performance of students at a local community and…

Q: List the types of Sensitivity Analysis?

A: Sensitivity Analysis deals with finding out the amount by which we can change the input data for the…

Q: Discuss all possible factors that would affect the validity of test scores

A: A test score is the value of the test statistic when the values of the parameter are put.

Q: Describe about the Level of Significance or p -Value?

A: Level of significance: The significance level is a value used as a criterion for deciding how small…

Q: Explain the uses and misuses of statistic , support ur answer with logical reasoning

A: There are so many uses of statistics as below: 1) Statistics provides a good representation of data…

Q: Conduct an independent - samples t-test to examine the difference between the mean ratings of the…

A: The objective of this question is to conduct an independent-samples t-test to examine the difference…

Q: The test statistic is correct, but the p-value is wrong.

A: Use Excel function "=NORM.S.DIST(2.45,TRUE)", to obtain the p-value.

Q: Sample Question Female Physicians The percentage of physicians who are women is 27.9%. In a survey…

A: Given : Population proportion = p = 0.279 Number of physicians selected = 44 total number of…

Q: Show the difference between two approaches to significance testing?

A: The two approaches to significance testing are p-value approach and critical value approach.

Q: What is an appropriate statistic to use for whether race/ethnicity (white, person of color) affects…

A: Test is that whether race/ethnicity affects whether or not people feel safe in their neighborhood.

Q: Professors collected data consisting of eye color and gender of statistics students. Among 888 male…

A: From the provided information,

Q: Can you explain how you find the p-value of the test statistic

A: The test statistic is -2.25 and the degrees of freedom is 80.

Q: Why do you need to know the sampling distribution of the difference between two sample means in…

A: In this case, we need to find the reason for identifying the sampling distribution of the difference…

Q: t will you use for the sample research relationship between academic stressors and learning…

A: The chi-square test of independence is known as the method that is used to define whether there is a…

Q: explain why two parameters are used in a two sample test

A: Here in the two parameters we take in two sample t-test because, we take samples from two…

Q: Can you rework this basing the decision on the P-value corresponding to the observed value of the…

A: We have given that n1 = 40, x̅1= 9.1 s1 = 1.9 n2 = 50, x̅2 = 8.0 s2 = 2.1 Significance level (α) =…

Q: Explain what are the objectives of ANOVA and how it is formulated. What are the underlying…

A: Introduction: The ANOVA or analysis of variance is a parametric method of hypothesis testing,…

Q: Please help find the test statistic, the p-value of the test, if we reject the null, and if there is…

A: Solution: State the hypotheses Null hypothesis: That is, the rate of inaccurate orders is equal to…

Q: Treatment| Placebo A study was done using a treatment group and a placebo group. The results are…

A: From the provided information,

Concept explainers

Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calculated is present here only.

Question

A group of researchers wondered whether vegetarians favored different seasons than non-vegetarians. The
researchers took a random sample of people and surveyed them about their favorite season and whether
or not they were vegetarian. Here are the responses and partial results of a chi-square test (expected
counts appear below observed counts):
Chi-square test: Dietary restrictions vs.
favorite season
Vegetarian
Not vegetarian
Total
Fall
78
84
8.4
75.6
Spring
55
64
6.4
57.6
Summer
15
133
148
14.8
133.2
Winter
58
64
6.4
57.6
Total
36
324
360
They want to use these results to carry out a r- test of independence. Assume that all conditions for inference were met.
What are the values of the test statistic and P-value for their test?
22 = 1.941;
0.15< P-value <0.20
x= 1.941:
P-value> 0.25

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 1 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

$Basics of Inferential Statistics$

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.

Similar questions

7. If we change the significance level from 5% to 1% how will that change affect the pvalue for the test? Explain.
Explain about upper tail test.
Can you think of any flaws in the One-Sample Z-Test for Mean?
The Bureau of Labor Statistics reports that the official unemployment rate for Black people was 10.4% and 4.7% for White people in February 2015. Select all correct answers for this question. O The samples of white and black people are independent. The explanatory variable is the unemployment rate. The response variable is the unemployment rate. The response variable is race.
Students in the senior capstone course (N=36) at Central State University took the Political Science subtest developed by the National Board Testing Association. The test is a 75-item, multiple choice test covering all areas of political science. The national norms for the test show a mean of 50. The mean for the students in the capstone course was 55, with a standard deviation of 15. Did the students at CSU score significantly higher than the national average? State your null and alternative hypothesis Is this a one-or-two tailed hypothesis? Explain thoroughly. Calculate the appropriate statistical test. Can you reject the null hypothesis? Why or why not?
5% is a very common significance level for significance tests, but it Is arbitrary a. Give an example where you might want to use a significance level lower than 5%. Explain why you would use the lower level. b. Give an example where you might want to use a significance level higher than 5%. Explain why you would use the higher level
Please answer all 3 parts and kindly show all workings. Thank you! A random sample of residents from various income brackets were asked their opinion on tax reform for the country of Guyana. The data so gathered were analyzed by a statistician and the results he obtained using MINITAB are shown below: Expected counts are printed below observed counts Low Middle High Total For 26 (30.67) 75 (51.11) 14 (33.22) 115 Against 60 (69.33) 95 (115.56) 105 (**) 260 Neutral 34 (20) 30 (33.33) 11 (21.67) 75 Total * 200 130 450 Chi-sq = 0.71 + 11.17 + 11.12 + *** + 3.66 + 11.89 + 9.8 + 0.33 + 5.25 = 55.2 DF = ??, p-value =??? Carefully define the null and alternative hypotheses of the ?2 test underlying the generation of the above b) Find the missing values ‘*’, ‘**’, ‘***’, ‘??’ and ‘???’. c) What is the conclusion of this test? Give reasons for your answer.
Explain about lower tail test.
Explain the difference between hypothesis testing with test statistics vs. hypothesis testingwith p-values.
what is the value of the test statistic for this test?
What can researchers do to ensure their survey is valid? Why is this important? What are the different types of validity that should be considered? What other concerns may affect validity of the survey?
Explain the difference between p-value and Test Statitic.