Is there an association between whether adults eat breakfast and whether they own a pet? To investigate,researchers select a random sample of 75 adults and asked them if they ate breakfast and if they owned a pet. Theresearchers would like to determine if there is convincing evidence of an association. Let a = 0.05. What are thehypotheses for this test?O Họ: There is an association between whether adults eat breakfast and whether they own a pet.Hạ: There is no association between whether adults eat breakfast and whether they own a pet.O Ho: There is no association between whether adults eat breakfast and whether they own a pet.Hạ: There is an association between whether adults eat breakfast and whether they own a pet.O Họ: There is no difference in the distribution of whether adults eat breakfast and whether they own a pet.Hạ: There is a difference in the distribution of whether adults eat breakfast and whether they own a pet.O Ho: There is a difference in the distribution of whether adults eat breakfast and whether they own a pet.Hạ: There is no difference in the distribution of whether adults eat breakfast and whether they own a pet.

To find: If there is an association between whether adults eat breakfast and whether they own a pet

Answered: Is there an association between whether…

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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Suppose are running a study/poll about the accuracy rate for fingerprint identification. You randomly sample 127 people and find that 89 of them match the condition you are testing. Suppose you are have the following null and alternative hypotheses for a test you are running: Ho: p = 0.72 H₁: p 0.72 Calculate the test statistic, rounded to 3 decimal places Question Help: Video Message instructor Post to forum Submit Question
Find A. Hypothesis and identify claim B. Compute test value C. Find p value D. Make decision E. Summarize results
OBFW Publishers A state's Division of Motor Vehicles (DMV) claims that 60% of all teens pass their driving test on the first attempt. An investigative reporter examines an SRS of the DMV records for 125 teens; 86 of them passed the test on their first try. A hypothesis test of Ho: P = 0.60 Ha:p # 0.60 where p = the true proportion of teens who pass their driving test on the first attempt using a = 0.05 gives a P-value of 0.0444. A 95% confidence interval for the true proportion of teens who pass the driving test on the first attempt is 0.607 to 0.769. Which is the following statements is not true with regards to the 95% confidence interval provided and the result of the hypothesis test? OA two-sided test only allows us to reject (or fail to reject) a hypothesized value for a particular population parameter. The value 0.60 is not a plausible value because it falls outside the 95% confidence interval. The 95% confidence interval provided gives an approximate set of po's that would not be…
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Researchers wants to see if men have same blood pressure as women do. In the language of statistics, the most appropriate alternative hypothesis (H1) is that there is : O A. no difference between the population means. O B. a difference between the population means. O C. no difference between the sample means. D. None of these O E. a difference between the sample means.
AD (Alzheimer's disease) causes progressive cognitive impairment. A diagnostic blood test for AD was proposed. An evaluation of the blood text involved fifty known AD patients and forty control who did not have AD. Of those who had AD, forty eight tested positive on the blood test and two tested negative. Of those without AD, three tested positive on the blood test and thirty seven tested negative. f. What is the PPV? Use this in a sentence explaining to a person what their positive test results suggests.
2
A political scientist claims that 38% of first-year college students characterize themselves as being “moderate” or “middle of the road” as far as their political affiliation is concerned. Believing this claimed value is too high, you survey a random sample of 400 first-year college students and find that 120 characterize themselves as being “moderate” or “middle of the road.” Based on this information, what will the test statistic be? Choose the answer below that is closest to what you calculate, and try not to do a lot of rounding until you get to the very end of your calculations. 1. -0.3 2. -1.2 3. -2.6 4. -3.3 5. None of the other answer options are correct because the test statistic should be positive, not negative.
Is there an association between grade level and whether the student makes their bed in the morning? To investigate, the principal at a large high school selects a random sample of 84 students and classifies them as being in ninth, tenth, eleventh, or twelfth grade, and whether they make their bed. He would like to determine if there is convincing evidence of an association. Let a = 0.05. What are the hypotheses for this test? O Ho: There is no association between grade level and whether the student makes their bed in the morning. Hạ: There is an association between grade level and whether the student makes their bed in the morning. O Ho: There is an association between grade level and whether the student makes their bed in the morning. Hạ: There is no association between grade level and whether the student makes their bed in the morning. O Ho: There is a difference in the distribution of grade level and whether the student makes their bed in the morning. Hạ: There is no difference in…
Which of the ff. statements are true I. A small t-score value indicates that the groups are similar. II. If tcalc is greater than tab , then the difference is significant. III. A p-value of 0.05 means there is 95% probability that the results happened by chance. IV. Independent sample t-test is used to compared means of two groups. O l and IV O I and III Il and IV O Il and III
Kelly performs a hypothesis test and calculates a p-value of .489 for her sample data. What decision can be made about the null hypothesis? O fail to reject the null O reject the null
A null and alternative hypothesis are given. Determine whether the hypothesis test is left-tailed, right-tailed, or two-tailed. Ho as 5.4 Ha a 5.4 What type of test is being conducted in this problem? A. Right-tailed test OB. Two-tailed test OC. Left-tailed test C

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