ASSIGNMENT NO. 4 - HYPOTHESIS TESTINGFormulate the null and alternative hypotheses for each of the following problems:1.Residents in a barangay A and B responded to the same question regarding the controversial issuein the community. The researcher try to prove whether there is a significant difference in theirresponses.Но:На:2. A researcher wants to know if the attitude of children is dependent on his or her order of birth.Но:На:3. Is it safe to conclude that the proportion of satisfied clients of EDGERS Airlines is greater than 85%?Но:На:4. There is a significant difference between the proportion of male and the proportion of femaleemployees who are concerned with their physical wellness?Но:На:5. Is there a sufficient evidence to prove that the average shelf life of packed fruit juices is less than 5days?Но:На:6. A cooperative manager claims that the average daily income of the cooperative is P30,000 withstandard deviation of P2,000. To validate the claim, a cooperative member took a random sampleof 40 days and found out that the average daily income is P27,000. Assuming the distribution ofincome approximates the normal distribution, does the sample prove-ided evidence to support themanager's claim at 1% level of significance?Но:Ha:

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Answered: 1. Residents in a barangay A and B…

Calculus For The Life Sciences

2nd Edition

ISBN:9780321964038

Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.

Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.

Chapter10: Matrices

Section10.EA: Extended Application Contagion

Problem 2EA

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a. State the researcher’s null and alternative hypothesis
Give Steps of hypothesis testing ?
while the decision The decision to reject a true null hypothesis is called to accept a false null hypothesis is A. Type I error; Type II error В. Туре II error; Туpe I error C. Type I error; a correct decision D. A correct decision; Type I error
1.Which is the alternative hypothesis? a. There is a significant difference between a person's age and the number of hours he or she sleeps. b. There is no significant relationship between a person's age and the number of hours he or she sleeps. c. There is a significant relationship between a person's age and the number of hours he or she sleeps. d. There is no significant difference between a person's age and the number of hours he or she sleeps. 2. What is the df? 3. What is the critical value from the table?
1-You will be conducting a study focusing on the relationship between student studying hours and final course grade. Generate a null hypothesis and two research hypotheses (nondirectional and directional) for this study.
Express the null hypothesis and the alternative hypothesis in symbolic form. Use the correct symbol (u, p, o) for the indicated parameter. A psychologist claims that more than 5.8% of the population suffers from professional problems due to extreme shyness. Use p, the true percentage of the population that suffers from extreme shyness. O A. Ho: p= 5.8% H1:p>5.8% О В. Но: р3 5.8% H:p<5.8% О с. Но: р- 5.8% H1:p2 5.8% O D. Ho: p= 5.8% H1:ps 5.8%
A Random Sample of 10,000 is selected, to show the variables that affect the default (bank default issue). The default variable is the variable to explain. In our sample we have two explanatory variables: student and balance. V Default: Yes (or 1) if the customer defaults on his debt and No (or 0) otherwise. V student: Yes (or 1) if the client is a student and No (or 0) otherwise V balance: average monthly amount of use of the credit card V income: client's income 1) We start by considering a simple logistic regression model where we try to explain default as a function of student. a) Give the equation of the adjusted logistic model. > Modele0 = glm(formula = default¨student, family = binomial(link = "logit"), data = Default) > Modele0$coeff (Intercept) balance -3.50413 0.40489
Suppose that you are curious to find out if there is any relationship between householdhead and employment status. Discuss why hypothesis test of means may not be useful to make inference in this case. Respondent Household head SEX AGE Hours worked per week Main type of work Length of time at job Years of secondary schooling Examination passed Employment Status Income 1 1 2 27 16 5 7 5 1 6 78000 2 2 1 24 40 5 5 3 99 3 78000 3 2 2 26 60 5 6 5 1 3 129996 4 2 1 46 40 4 7 5 1 3 78000 5 1 2 31 40 8 7 3 1 3 129996 6 1 1 48 24 4 7 3 1 3 46800 7 2 1 19 45 5 5 3 1 3 78000 8 1 2 63 16 6 7 3 1 6 46800 9 2 1 26 40 9 7 4 9 3 78000 10 1 2 38 40 7 2 5 1 6 360000 11 1 1 48 24 4 7 3 1 3 46800 12 2 1 19 45 5 5 3 1 3 78000 13 1 2 63 16 6 7 3 1 6 46800 14 2 1 26 40 9 7 4 9 3 78000 15 1 2 38 40 7 2 5 1 6 360000 16 2 1 19 40 4 4 5 3 3 78000 17 1 1 37 45 5 7 3 9 6 779948 18 2 1 40 40 9 7 4 9 3 78000 19 2 1 40 60 5 5 3 1 3 78000 20 1 1 28 40 2 5 5 8 3…
Give introduction to Hypothesis Testing?
A doctor recorded the number of miles walked each day by patients over age 60 and the number of doctor visits in a year for 40 patients. The resulting data were used to conduct a hypothesis test to determine whether there is a linear relationship between the number of miles walked and the number of doctor visits. What are the correct hypotheses for the test?
What is the alternative hypothesis?
Q1. i) “Hypothesis testing is an important aspect without which the validity of research can't be claimed". Comment on the statement with valid examples to prove this. ii) Eleven school boys were given a test in Statistics. They were given a month's tuition and a second test was held at the end of it. Do the marks give evidence that the students have benefited by the extra coaching? Воys 6 7 8 1 3 4 5 10 11 Marks in Test 1 23 28 12 23 16 29 17 15 14 12 15 Marks in Test 2 25 30 25 19 18 21 15 17 19 18 16

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