56.368.678.747.460.471.2escWhat is the critical value for this test? (Report answer accurate to three decimal places.)critical value:What is the test statistic for this sample? (Report answer accurate to three decimal places.)test statistic =The test statistic is...in the critical regionOnot in the critical regionThis test statistic leads to a decision to...reject the nullfail to reject the nullAs such, the final conclusion is that...The sample data support the claim that the population mean is greater than 54.9.There is not sufficient sample evidence to support the claim that the population mean is greater than54.9.Question Help: Message instructorSubmit Question1F1@2#3380F3$4aF4%5F5MacBook AirA6F6 Question 7You wish to test the following claim (Ha) at a significance level of a = 0.001.Ho:μ = 54.9Ha:μ > 54.9You believe the population is normally distributed, but you do not know the standard deviation. You obtain thefollowing sample of data:data85.479.870.258.648.856.368.678.747.460.471.2What is the critical value for this test? (Report answer accurate to three decimal places.)critical value =The test statistic is...What is the test statistic for this sample? (Report answer accurate to three decimal places.)test statistic =<O in the critical regionnot in the critical regionesc>This test statistic leads to a decision to...reject the nullO fail to reject the nullAs such, the final conclusion is that...The sample data support the claim that the population mean is greater than 54.9.IF1@F280F3aF4F5MacBook AirF6

Given information Null Hypothesis H0: μ=54.9 Alternative Hypothesis Ha: μ>54.9 Level of…

Answered: This test statistic leads to a decision…

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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Please help to identify one potential source of error (e.g. sampling, measurement, other form of bias) that could impact the validity of the findings above.
1. Make a statistical decision about the null. Will you reject or fail to reject the null based on your sample data? 2. Justify your decision regarding the null. 3. Calculate the effect size for the comparison of those who estimated the line while alone vs. those who estimated in the length of line B when others told them it was 7 inches long (using Cohen's d). How large of an effect size is this (small, medium, or large)?
Find A. Hypothesis and identify claim B. Compute test value C. Find p value D. Make decision E. Summarize results
A. MULTIPLE CHOICE Directions: Write the letter of the correct answer on the space provided before each number. 1. For any hypothesis test, p-value = probability of committing a a. Type III error c. Type IV error b. Typel error d. Type II error 2. Which of the following is the standard deviation of the sample proportions? Po a. √pq C. n 90 Poqo b. d. n 3. For a z-test of proportions, which of the following is the rejection region for a two-tailed test? a. z> za or z>-Za C. Z -Za b. z>-Za/2 or z > Za/2 d. z Za/2 4. If po 0.48, what is go? c. 0.52 c. 0.48 d. 0.82 d. 0.62 5. In a test of Ho: μ = 100 against Ho : µ > 100, the sample data yielded the sample statistic z = 2.15. What is the p-value for the test. a. 0.0158 c. 0.0157 b. 0.0159 d. 0.0160
There are a thousand men in a cohort for which prostate cancer prevalence is 2.2%.The test we're using for prostate cancer has a sensitivity of 0.6 (gets the diagnosis right 60% of the time if a patient has prostate cancer) specificity of 0.95 (gets the diagnosis right 95% of the time if a patient does not have prostate cancer) Fill in the tree with the correct number of patients in each cell, and give the probability that a man actually has prostate cancer, given a positive test result.Probability =
Which of the following is NOT a misuse of statistics?Choose the correct answer below.A.Utilizing valid statistical methods and correct sampling techniquesB.Concluding that a variable causes another variable because they have some correlationC.Misleading graphsD.Making conclusions about a population based on a voluntary response sample
You wish to test the following claim (Ha) at a significance level of a = 0.05. Но : и — 75.4 Ha:µ > 75.4 а You believe the population is normally distributed, but you do not know the standard deviation. You obtain a sample of size n = 8 with mean a 83.4 and a standard deviation of s = 11.9. What is the p-value for this sample? (Report answer accurate to four decimal places.) p-value = The p-value is... less than (or equal to) a O greater than a
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The accompanying table contains the data for the amounts (in oz) in cans of a certain soda. The cans are labeled to indicate that the contents are 16 oz of soda. Use the sign test and a 0.01 significance level to test the claim that cans of this soda are filled so that the median amount is 16 oz. If the median is not 16 oz, are consumers being cheated? Click the icon to view the data. What are the null and alternative hypotheses? O A. Ho: Median volume ≤ 16 oz H₁: Median volume = 16 oz C. Ho: Median volume = 16 oz H₁: Median volume # 16 oz Find the test statistic. Test statistic (Round to three decimal places as needed.) = More Info 15.6 16.0 16.1 16.1 407 15.7 (…) 16.1 15.9 19:3 15.8 16.5 15.8 15.7 15.9 OB. Ho: Median volume ≤ 16 oz H₁: Median volume > 16 oz O D. Ho: Median volume = 16 oz H₁: Median volume < 16 oz Volume (in ounces) 15.7 15.5 15.7 15.7 15.8 420 15.9 103 16.3 15.7 15.7 16.1 16.3 15.8 15.7 15.6 15.5 15.6 15.5 20 16.0 400 15.8 19:0 15.6 15.6 15.5 16.4 15.9 D - X
Answer the questions in the images.
If you use a 0.025 level of significance in a (two-tail) hypothesis test, what is your decision rule for rejecting a null hypothesis that the population mean is 600 if you use the Z test? Click here to view page 1 of the Normal table. LOADING... Click here to view page 2 of the Normal table. LOADING... Question content area bottom Part 1 Which of the following decision rules is correct? A. Reject H0 if ZSTAT<−2.24 or ZSTAT>+2.24. B. Reject H0 if −2.24<ZSTAT<+2.24. C. Reject H0 if −1.96<ZSTAT<+1.96. D. Reject H0 if ZSTAT<−1.96 or ZSTAT>+1.96.
write down the hypothesis test for checking the following: 1. whether the mean is different from 2 2. whether the mean is less than the value of 5

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