You are conducting a multinomial hypothesis test for the claim that the 4 categories occur with thefollowing frequencies:H. :PA: 0.3; рв0.4; Рс —0.1; pD0.2Complete the table.ExpectedFrequency Frequency ResidualObservedSquaredCategoryA282810D27What is the chi-square test-statistic for this data?x² :Report all answers accurate to three decimal places.

Name: You are conducting a multinomial hypothesis test for the claim that t
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Description: You are conducting a multinomial hypothesis test for the claim that the 4 categories occur with thefollowing frequencies:H. :PA: 0.3; рв0.4; Рс —0.1; pD0.2Complete the table.ExpectedFrequency Frequency ResidualObservedSquaredCategoryA282810D27What i

Solution: State the hypotheses. Null hypothesis: Alternative hypothesis: H1: At least one…

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You are conducting a multinomial hypothesis test for the claim that the 4 categories occur with the following frequencies: Ho:PA : 0.3;B рв 0.4; рс 0.1; PD = 0.2 %3D Complete the table. Expected Squared Frequency Frequency Residual Observed Category А 28 В 28 10 27 What is the chi-square test-statistic for this data? x² = Report all answers accurate to three decimal places.

You are conducting a multinomial hypothesis test for the claim that the 4 categories occur with the following frequencies: Ho:PA : 0.3;B рв 0.4; рс 0.1; PD = 0.2 %3D Complete the table. Expected Squared Frequency Frequency Residual Observed Category А 28 В 28 10 27 What is the chi-square test-statistic for this data? x² = Report all answers accurate to three decimal places.

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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Scores on an IQ test are normally distributed. A sample of 25 IQ scores had variance of 64. The developer of the test claims that the population standard deviation is 15. Do these data provide sufficient evidence to significance? Use α=0.05α=0.05 . Answer the following questions. (a) What is the parameter? . (input as "mean", "standard deviation", "variance" or "proportion") (b) Determine if the alternative hypothesis is "right", "left" or "two-tailed" test. (input as "right", "left" or "two-tailed") (c) Test by using a confidence interval. Round confidence interval to nearest thousandth. (e.g. 0.1345 would be entered as 0.135) between ( and ) (d) State conclusion.: There is (input as "sufficient" or "insufficient") to (input as "conclude" or "reject") to conclude that the population standard deviation of IQ test is 15.
Step 1 of 3. State the null and alternative hypotheses for the test. Step 2 of 3. Compute the value of the test statistic. Round your answer to three decimal places Step 3 of 3. Draw a conclusion and interpret the decision.
My answer is as follows: T critical = 2.70 T value= 7.775 P< a (0.01) Therefore we reject the null. Is this correct?
Much is still to be learned about the relationship between sound frequency and loudness. One way to study this relationship is to have listeners perform loudness judgments for tones of different frequencies. For each listener, the output of these judgments is a number, measured in sones, that gives the loudness of the tone relative to the loudness of a reference tone. You have in front of you data from an experimental study in which 54 listeners were asked to perform such loudness judgments for tones of various intensities and frequencies. Of these 54 listeners, 18 had normal hearing, 18 used hearing aids, and 18 had some hearing loss at low frequencies (but didn't use hearing aids). Here is a summary of the data obtained for a 50 dB SPL, 500-Hz tone (the data are the sone values corresponding to this tone). Sample size Sample Sample variance Groups mean Normal hearing 18 2.52 0.3 Hearing aid 18 2.23 0.3 Some hearing loss 18 1.97 0.2 Send data to calculator Send data to Excel
You are conducting a study to see if the accuracy rate for fingerprint identification is significantly less than 0.24. Thus you are performing a left-tailed test. Your sample data produce the test statistic z=−2.287z=-2.287. Find the p-value accurate to 4 decimal places.p-value =