You are conducting a study to see if the accuracy rate forfingerprint identification is significantly less than 0.69. Ifyour null and alternative hypothesis are:Ho:p > 0.69Ha:p < 0.69Then the test is:two tailedO right tailedleft tailed

According to the given information, we have H0: p≥0.69Ha: p<0.69

Answered: You are conducting a study to see if…

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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A recent study focused on the number of times men and women send a Twitter message in a day. The information is summarized here. Sample Size Sample Mean Population Standard Deviation Men 25 23 5 Women 30 28 10 At the 0.01 significance level, we ask if there is a difference in the mean number of times men and women send a Twitter message in a day. Assume that women are population 1 and men are population 2. What is the p-value for this hypothesis test? Multiple Choice 0.0500 0.0164 0.0001 0.0082
Question Help v Consider a drug that is used to help prevent blood clots in certain patients. In clinical trials, among 5782 patients treated with this drug, 157 developed the adverse reaction of nausea. Use a 0.05 significance level to test the claim that 3% of users develop nausea. Does nausea appear to be a problematic adverse reaction? Identify the null and alternative hypotheses for this test. Choose the correct answer below. O A. Ho: p=0.03 H: p#0.03 O B. Ho: p=0.03 H:p>0.03 OC. Ho: p#0.03 H: p=0.03 OD. Ho: p=0.03 H:p<0.03
Suppose 240 subjects are treated with a drug that is used to treat pain and 55 of them developed nausea. Use a 0.01 significance level to test the claim that more than 20% of users develop nausea. Question content area bottom Part 1 Identify the null and alternative hypotheses for this test. Choose the correct answer below. A. H0: p=0.20 H1: p>0.20 B. H0: p>0.20 H1: p=0.20 C. H0: p=0.20 H1: p<0.20 D. H0: p=0.20 H1: p≠
Failing to reject an invalid null hypothesis (continuing to incorrectly assume a null is valid) is called: the beta-risk. the level of confidence. the level of significance. the power of the test. the alpha-risk.
Can you please help me answer the following as I got this incorrect on my assignment: Question: Relate to this specific scenario: What is the null hypothesis? What is the alternate / research hypothesis? Which one do you statistically assess? My answer that was marked incorrect: The null hypothesis states that there is no difference or correlation between a person's heart rate and exam score. The alternative: A person's heart rate and predicted test score are related. An inferential statistical test is performed on the null hypothesis. Professor feedback to change and resubmit: not either of these words is most appropriate - scenario states prediction To measure whether test performance can be predicted based on one’s anxiety, a researcher asked his students to come to the lab 15 minutes before they were to take an exam in his class. The researcher measured the students' heart rates and then matched these scores with their exam performance after they had taken the exam. Use the…
Suppose that at a particular college, a random sample found that 25 out of 100 students who use the internet use Twitter. Does this provide evidence that the true proportion of students at this college who use Twitter is higher than the nationally stated 15%? Use a significance level of 0.05 and the p-value to give your decision. The correct hypotheses to use are: Ho: p = 0.15 HA: p > 0.15 Blank #1: Report the test statistic to two decimal places Blank #2: Report the p-value to four decimal places. Blank #3: Give the test decision: (reject or do not reject) Ho Blank #4: Evidence _[favors or does not favor) that the true proportion of students at this college who use Twitter is higher than the nationally stated 15%.
What is the null hypothesis and alternative hypothesis for the given problem?
Show your complete solution II. Use an appropriate statistical tool to test the hypothesis. Use the stepwise method of hypothesis testing. 2. An experimenter was interested in the effect of sleep deprivation on the ability to detect moving objects on a radar screen. The 20 subjects were randomly assigned to one of 4 different conditions (0, 12, 24, 36 hours without sleep). Recorded is the number of failures in spotting moving objects during a test period. Conduct the appropriate test using an alpha of .05. O hrs 12 hrs 24 hrs 36 hrs 36 38 46 76 45 66 20 46 67 62 26 22 61 44 21 40 59 61 74 21
The ___________ is a value used in making a decision about the null hypothesis and is found by converting the sample statistic to a score with the assumption that the null hypothesis is true.
This is a _______ tailed test. The correct statistical test to use for this problem is: Hypothesis testing: The last part of the null and alternative hypotheses are: What is/are the critical values for this problem? What is the obtained statistic for this problem? The effect size for this problem is _______.
What is the p-value if, in a two-tail hypothesis test, ZSTAT = +1.96? Click here to view page 1 of the Normal table. Click here to view page 2 of the Normal table. ... p-value = (Round to four decimal places as needed.)
sanjay

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You are conducting a study to see if the accuracy rate for fingerprint identification is significantly less than 0.69. If your null and alternative hypothesis are: Ho:p > 0.69 Ha:p < 0.69 Then the test is: two tailed right tailed O left tailed