Which of the two hypotheses is the researcher always testing toreject or not?

The hypotheses are null and alternative hypothesis.

Answered: Which of the two hypotheses is the…

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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Explain the difference, in your own words, between a null hypothesis and the alternative hypothesis. What do we set up hypothesis testing in this way?
What is step 5 of hypothesis testing ?
Abigail, who works for a region's department of health, is looking for evidence that the percentage of adults in the region who are current smokers has decreased from 15.8% in 2015, She gathers a random sample of adults in the region and asks each individual if he or she currently smokes. Abigail found that 40 of the 277 adults who were surveyed are current smokers. What are the null and alternative hypotheses for this hypothesis test? Select the correct answer below: O Ho: p0.158 Ha : p=0.158 0 Ho : p= 0.158 Ha: p> 0.158 Ho : p: 0.158 Ha p0.158 10 ĺHo:p=0.158 Ha: p0.158
A decade-old study found that the proportion of high school seniors who felt that "getting rich" was an important personal goal was 69% . Suppose that we have reason to believe that this proportion has changed, and we wish to carry out a hypothesis test to see if our belief can be supported. State the null hypothesis H0 and the alternative hypothesis H1 that we would use for this test. H0:H1:=
The graduation rate from high school in a certain county is 76%. A school in that county wants to know if its graduation rate is significantly lower than the county rate. They take a random sample of 300 of the seniors who graduated last year, and find that 223 out of those 300 graduated. What set of hypotheses should be tested in this case?
You may need to use the appropriate appendix table or technology to answer this question. In 2012, seventy percent of Canadian households had an internet connection. A sample of 320 households taken in 2013 showed that 76% of them had an internet connection. We are interested in determining whether or not there has been a significant increase in the percentage of the Canadian households that have internet connections. (a) State the null and alternative hypotheses to be tested. (Enter != for as needed. Let p be the proportion of all Canadian households with internet connections.) H₂₂: H₂: (b) Compute the test statistic. (Round your answer to two decimal places.) (c) The null hypothesis is to be tested at the 5% level of significance. Determine the critical value(s) for this test. (Round your answer(s) to two decimal places. If the test is one-tailed, enter NONE for the unused tail.) test statistic s test statistic 2 (d) What do you conclude? O Do not reject H. We can conclude that there…
f our null hypothesis is H0: ? = 40, what are the three possiblealternative hypotheses?
Could you please help me out with this question… Does ivy grow better in areas with more sun versus in shady areas? Formulate one null (H0) and one alternative (H1) hypothesis.
It is believed that positive, self-affirming statements can lead to greater academic success on high- stakes assessments. In a recent study, 120 advanced algebra students were randomly assigned to two groups. One group was instructed how to write and recite daily positive self-affirmations while the other group did not do any affirmations. After one semester, all 120 students took the same algebra examination. Which of the following would be appropriate hypotheses for this study? (A) Ho: M₁ = ₂ and Ha: ₁ ₂, where ₁ = mean score for those who used affirmations and U₂ = mean score for those who don't use affirmations. (D) Ho: H1 H2 and Ha: ₁ = µ2, where μ, mean score for those who used affirmations and μ₂ = mean score for those who don't use affirmations. (E) Ho: H₁ H₂ and Ha: 1 = P2, where μ, mean score for those who used affirmations and U₂ = mean score for those who don't use affirmations.
A claim is made that the proportion of college students who have Netflix accounts is 0.92. Mateo believes this claimed value is too high. He is able to survey a random sample of 180 college students, and he finds that the sample proportion who have Netflix accounts is 0.88. Mateo proceeds to use this data to conduct a hypothesis test. Based on this information, which one of the following statements is correct? The P-value will be smaller than 0.01 but larger than 0. The P-value will be between 0.01 and 0.05. The P-value will be between 0.05 and 0.10. The P-value will be larger than 0.10. The P-value will be negative.
Many questions in research can be expressed as two competing statements about the population parameter. These two statements are called the null and the alternative hypotheses. Usually, the researcher hopes the sample evidence will be in favor of the alternative hypothesis, the new theory. It is important to be able to state the theories that are being put to a test. Write out the hypotheses to be put to the test and define the parameter of interest in context of the problem. Do a minority of Michigan residents clear snow from sidewalks before 9 am after snow has fallen?For this scenario, write out the hypotheses to be put to the test and define the parameter of interest in context of the problem. H0:Ha: The parameter p represents ___(provide appropriate definition in context)________
A decade-old study found that the proportion of high school seniors who felt that "getting rich" was an important personal goal was 71%. Suppose that we have reason to believe that this proportion has changed, and we wish to carry out a hypothesis test to see if our belief can be supported. State the null hypothesis H0 and the alternative hypothesis H1 that we would use for this test.

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Which of the two hypotheses is the researcher always testing to reject or not?