Preventable chronic diseases are increasing rapidly in some regions, particularly diabetes. Shown below is a contingency table showing cross classification of educational attainment and diabetic state for a random sample of 1346 people in a region (HS is high school). At the 1% significance level, do the data provide sufficient evidence to conclude that an association exists between educational level and diabetic state for the region? Less than HS HS grad 40 31 297 207 337 238 Diabetes No diabetes Total Some college College grad Total 136 1210 1346 32 389 421 33 317 350 What are the null and alternative hypotheses? O A. Ho: The two variables, educational level and diabetic state, are not associated. H₂: The two variables, educational level and diabetic state, are associated. The test statistic is (Round to three decimal places as needed.) O B. Ho: The variable educational level is dependent upon diabetic state. H₂: The variable diabetic state is dependent upon educational level. O C. Ho: The two variables, educational level and diabetic state, are associated. H₂: The two variables, educational level and diabetic state, are not associated.

Preventable chronic diseases are increasing rapidly in some regions, particularly diabetes. Shown below is a contingency table showing cross classification of educational attainment and diabetic state for a random sample of 1346 people in a region (HS is high school). At the 1% significance level, do the data provide sufficient evidence to conclude that an association exists between educational level and diabetic state for the region? Less than HS HS grad 40 31 297 207 337 238 Diabetes No diabetes Total Some college College grad Total 136 1210 1346 32 389 421 33 317 350 What are the null and alternative hypotheses? O A. Ho: The two variables, educational level and diabetic state, are not associated. H₂: The two variables, educational level and diabetic state, are associated. The test statistic is (Round to three decimal places as needed.) O B. Ho: The variable educational level is dependent upon diabetic state. H₂: The variable diabetic state is dependent upon educational level. O C. Ho: The two variables, educational level and diabetic state, are associated. H₂: The two variables, educational level and diabetic state, are not associated.

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: The technicians at a laboratory are analyzing the results of the test that detects a certain…

Q: Smoking and Alzheimer's Medical studies indicate that smokers are less likely to develop Alzheimer's…

Q: Gender of Respondent Male Female Quality of Facilities Above Average 7. Average Below Average 26 24…

A: Let A and B be the two attributes divided into r and s classes respectively and N is the total…

Q: Which of these responses is false about adjustment by stratification? A. It is carried out only for…

A: Option A is not true. Adjustment is only carried out only for the one independent variable and an…

Q: Some researchers in the Statistics department at UCD are interested in testing whether or not there…

A: Given that there are three samples taken at the time of their research regarding their testing…

Q: What is H0? Group of answer choices: 1. pyounger = polder 2. polder = .45 and pyounger = .55 3.…

A: A statistical hypothesis is an assumption or a statement about the population. Hypothesis testing is…

Q: It is not exposed to the factor under consideration and all other external influences are held…

A: When a treatment is applied to a group and results are obtained after the treatment, then the method…

Q: According to Sports Medicine, one in two athletes uses performance-enhancing drugs. It is believed…

A: Null hypothesis: Alternative hypothesis:

Q: Claim: Fewer than 8.5% of homes have only a landline telephone and no wireless phone. Sample data: A…

A: The objective of the question is to express the original claim in symbolic form and identify the…

Q: A psychologist is interested in constructing a 95% confidence interval for the proportion of people…

Q: 1 Do you drink coffee or caffeine before schoolwork? Number of students 2 Yes 3 No 4 Sum 5 6 If yes,…

A: The given information is represented in the following table: Do you believe it helps with your…

Q: C2. Construct potential hypotheses or research questions to relate the variables in each of the…

A: As per guidelines we will only answer the first three subparts, please repost other subparts for…

Q: Which of the choices below are the appropriate hypotheses for these data? A)Ho. The distribution of…

A: Given Data :

Q: In Bloomington, they randomly sampled 280 female voters, and 230 male voters. They collected data on…

A: Hypothesis: Ho: Gender and issue attitudes are independent.…

Q: Solve the problem. 21) Suppose a study was conducted to see whether there is an association between…

A: Null hypothesis: H0: There is no association between marital status and vehicle color. Alternative…

Q: In a survey of 1,200 higher education students in the country, it was determined that 240 paid cash…

A: Given: Total number of higher education students in the country = 1200 Number of students paid cash…

Q: You are interested in investigating whether the type of computer a person primarily uses and the…

Q: We’re testing the hypothesis that a higher percentage of women do aerobics than men. What are the…

A: We’re testing the hypothesis that a higher percentage of women do aerobics than men. What are the…

Q: Female female Had Not Cheated Cheated Total Male Right 29 162 191 Male Wrang 12 Total 38 165 203…

A: From the given information in table 1. We conduct chi squared test for association.

Q: what is the conclusion of the independence test? A.Reject H0. The data provide sufficient…

A: Explanation: N = 1201 α = 0.01 Formula Used: χ2 =∑ (O-E)2E Where O is observed frequency E is…

Q: disease that can cause complications including death. There was an outbreak of measles in Colorado…

A: since there are multiple parts , first two questions are answered in detail. Kindly repost for more…

Q: psychologist is interested in constructing a 99% confidence interval for the proportion of people…

A: Confidence interval: It is defined as the range which contains the value of true population…

Q: Passed Failed White Results from a civil servant exam are shown in the table to the right. Is there…

A: Given: Data of results from a civil servant exam. The statistical hypothesis that will be formed is:…

Q: A certain drug is used to treat asthma. In a clinical trial of the drug, 21 of 300 treated subjects…

A: In order to test the claim that the population proportion of patients experiencing headaches after…

Q: C. d. What is the p-value? If your answer is less than .01, wri 0 Do we reject the null hypothesis…

A: The null and alternative hypotheses for the test are: H0: There is no relationship between the size…

Q: What is H0? Group of answer choices: 1. pyounger = polder 2. polder = .45 and pyounger = .55 3.…

A: A statistical hypothesis is an assumption or a statement about the population parameter. Hypothesis…

Q: ??

A: a)The direction of the scatter plot is downwards going to the right which means it is a negative…

Q: A genetic experiment involving peas yielded one sample of offspring consisting of 442 green peas and…

A: Given X=149 n=442+149=591

Q: Persons who visit the restroom of a certain fast-food outlet were asked to state their opinion of…

A: In order to determine whether there is an association between the gender of persons and their…

Q: Concurrent Validity. When the instrument can predict results similar to those similar tests already…

A: Given: Concurrent validity with example.

Q: Grample 16.17 The director of a management training programme is interested to know whether there i.…

Q: A psychologist is interested in constructing a 99% confidence interval for the proportion of people…

Q: French Consider the association between a student’sscore on a French vocabulary test and the weight…

A: a.

Q: B. Determine the test statistic. ____ C. Do the results support the theory that because the…

A: Given data of penalty kick direction and goal keeper jump as shown belowHere we use Chi square test…

Q: Select the correct null hypothesis, H0, and alternative hypothesis, Ha, in symbolic form. A chain…

A: The hypothesis with no differences is known as null hypothesis. The complementary hypothesis to the…

Q: State the alternative hypotheses for the following claim: For Division I schools, less than 25% of…

A: Given that p=25%=0.25 For Division I schools, less than 25% of them have a bulldog as their…

Q: b) Persons who visit the restroom of a certain fast-food outlet were asked to state their opinion of…

A: Given data : Row(1) total = 15 Row(2) total = 50 Row(3) total = 35 Column (1) total = 41…

Question

What is the conclusion of the independence test?

Reject

H0.

The data

do not provide

sufficient evidence of an association.

Do not reject

H0.

The data

provide

sufficient evidence of an association.

Do not reject

H0.

The data

do not provide

sufficient evidence of an association.

Reject

H0.

The data

provide

sufficient evidence of an association

Preventable chronic diseases are increasing rapidly in some regions, particularly diabetes.
Shown below is a contingency table showing cross classification of educational attainment and
diabetic state for a random sample of 1346 people in a region (HS is high school). At the 1%
significance level, do the data provide sufficient evidence to conclude that an association exists
between educational level and diabetic state for the region?
Less than HS HS grad
40
Diabetes
No diabetes 297
Total
337
31
207
238
Some college College grad Total
136
1210
1346
32
389
421
33
317
350
What are the null and alternative hypotheses?
O A. Ho: The two variables, educational level and diabetic state, are not associated.
H₂: The two variables, educational level and diabetic state, are associated.
The test statistic is.
(Round to three decimal places as needed.)
The P-value is
B. Ho: The variable educational level is dependent upon diabetic state.
H₂: The variable diabetic state is dependent upon educational level.
O C. Ho: The two variables, educational level and diabetic state, are associated.
H₂: The two variables, educational level and diabetic state, are not associated.

Expert Solution

This question has been solved!

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

SEE SOLUTION Check out a sample Q&A here

Step 1: Introduction

VIEW

Step 2: Calculation for Expected values

VIEW

Step 3: Calculation for chisquare test statistic

VIEW

Step 4: Calculation for P value and conclusion

VIEW

Step by step

Solved in 4 steps

SEE SOLUTION Check out a sample Q&A here

Similar questions

A psychologist is interested in constructing a 95% confidence interval for the proportion of people who accept the theory that a person's spirit is no more than the complicated network of neurons in the brain. 68 of the 725 randomly selected people who were surveyed agreed with this theory. a. With 95% confidence the proportion of all people who accept the theory that a person's spirit is no more than the complicated network of neurons in the brain is between ____and _____. b. If many groups of 725 randomly selected people are surveyed, then a different confidence interval would be produced from each group. About ___ percent of these confidence intervals will contain the true population proportion of all people who accept the theory that a person's spirit is no more than the complicated network of neurons in the brain and about ___ percent will not contain the true population proportion.
A student organization surveyed both current students and recent graduates to obtain information on the quality of teaching at a particular university. An analysis of the responses provided the following teaching-ability rankings. Professor O Ho: Ps+0 H₂: Ps=0 O Ho: Ps ≤0 Ha: P >0 1 Ho: Ps > 0 H₂: Ps=0 2 Ho: Ps= 0 Ha: Ps * 0 3 4 5 6 7 9 10 Current Students 4 6 8 3 1 2 5 10 7 9 Recent Graduates 6 8 5 1 2 3 7 Do the rankings given by the current students agree with the rankings given by the recent graduates? Compute the rank correlation between current students and recent graduates. (Round your answer to three decimal places.) 9 Use α = 0.10 and test for a significant rank correlation. State the null and alternative hypotheses. O Ho: P₂ ZO Ha: Ps <0 10 4 Find the value of the test statistic. (Round your answer to two decimal places.) Find the p-value. (Round your answer to four decimal places.) p-value= What is your conclusion? O Reject Ho. There is not sufficient evidence to conclude…
A psychologist is interested in constructing a 90% confidence interval for the proportion of people who accept the theory that a person's spirit is no more than the complicated network of neurons in the brain. 57 of the 741 randomly selected people who were surveyed agreed with this theory. a. With 90% confidence the proportion of all people who accept the theory that a person's spirit is no more than the complicated network of neurons in the brain is between _____ and _____. b. If many groups of 741 randomly selected people are surveyed, then a different confidence interval would be produced from each group. About _____ percent of these confidence intervals will contain the true population proportion of all people who accept the theory that a person's spirit is no more than the complicated network of neurons in the brain and about _____ percent will not contain the true population proportion.
What is the final conclusion? O A. There is not sufficient evidence to support the claim that less than 25% of offspring peas will be yellow. O B. There is sufficient evidence warrant rejection of the claim that 25% of offspring peas will be yellow. OC. There is sufficient evidence to support the claim that less than 25% of offspring peas will be yellow. O D. There s not sufficient evidence to warrant rejection of the claim that 25% of offspring peas will be yellow.
It's estimated that 65% of the people who visit Omaha during the College World Series visit the Henry Doorly Zoo. The managers at the zoo recently undertook an extensive advertising project. They are interested in determining whether the project actually increased the proportion of tourists visiting the zoo. The correct set of hypotheses is Ho:p>.65 Ho: p.65.
It is suspected that the higher-priced automobiles are assembled with greater care than lower- priced automobiles. To investigate whether there is any basis for this feeling, a large luxury model A, a medium-size sedan B, and a subcompact hatchback C were compared for defects when they arrived at the dealer's showroom. All cars were manufactured by the same company. The number of defects for several of the three models are recorded below. Number of Automobile Defects Model A В 4 8 7 1 6. 6. 8 5 9. 3 4 Total 23 21 36 80 Test the hypothesis at the 0.05 level of significance that the average number of defects is the same for the three models.
The health board of a major city wants to know if people who have different types of healthcare coverage (HMO, Medicare/Medicaid, or no insurance) go to different types of hospitals (privately-funded, government-funded, or free clinic) when they are injured. Using the data below, test the null hypothesis that type of insurance does not affect which hospital type they choose. Insurance Type Private Public Free Clinic HMO 17 6 4 Medicare/Medicaid 24 30 9 No insurance 8 14 8
A. P (win/regular) = 0.82 P (win/prevent) = 0.64 Conclusion: You are more likely to win by playing prevent defense. B. P (win/regular) = 0.33 P (win/prevent) = 0.67 Conclusion: You are more likely to win by playing prevent defense. C. P (win/regular) = 0.82 P (win/prevent) = 0.64 Conclusion: You are more likely to win by playing regular defense. D. P (win/regular) = 0.33 P (win/prevent) = 0.67 Conclusion: You are more likely to win by playing regular defense.
What statistical test would a researcher use to test the following research hypothesis: Individuals who report less favorable attitudes toward the police are more likely to be sentenced to higher security prisons. Attitudes measured as 1 = very favorable, 2 = somewhat favorable, 3 = somewhat not favorable, and 4 = not at all favorable. Sentences measured as 1 = minimum, 2 = medium, and 3 = maximum.
Which of the following conclusion would represent a Type II error? Concluding that the average voter turnout at presidential election will change when in fact turnout will not /did not change. Concluding that the average voter turnout at presidential election will not change when in fact turnout will / did change.
2. Investigate using the Chi square test of independence whether the positive and the negative attitudes toward mathematics of 450 fourth year high school students are independent of the course they wou ld like to pursue in college. Use the following data collected by a researcher. For the level of significance, use O. 05 Courses Attitudes Positive Negatives BSE 32 34 BS Accountancy BS Psychology BS Civil Engineering 45 24 15 26 34 4 BSHRM 44 BS in International 17 26 Relation BSCS 15 24 BS Math 32 BSIT 13 12 BS in Biology 31 27
A psychologist is interested in constructing a 99% confidence interval for the proportion of people who accept the theory that a person's spirit is no more than the complicated network of neurons in the brain. 69 of the 762 randomly selected people who were surveyed agreed with this theory. a. With 99% confidence the proportion of all people who accept the theory that a person's spirit is no more than the complicated network of neurons in the brain is between _____ and _____ . b. If many groups of 762 randomly selected people are surveyed, then a different confidence interval would be produced from each group. About ________ percent of these confidence intervals will contain the true population proportion of all people who accept the theory that a person's spirit is no more than the complicated network of neurons in the brain and about _______ percent will not contain the true population proportion.