You are conducting a multinomial Goodness of Fit hypothesis test for the claim that the 4 categories occurwith the following frequencies:Ho: PA = 0.1; PB = 0.4; pc = 0.2; pp = 0.3Complete the table. Report all answers accurate to three decimal places.ExpectedCategoryObservedFrequency FrequencyResidualABCD28372230What is the chi-square test-statistic for this data?x² =For significance level alpha 0.1, what is the chi-square Critical Value?Critical Value =What would be the conclusion of this hypothesis test?O Reject the Null HypothesisO Fail to reject the Null HypothesisReport all answers accurate to three decimal places.

You are conducting a multinomial Goodness of Fit hypothesis test for the claim that the 4 categories…

Answered: What is the chi-square test-statistic…

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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Use dataset HT_2448.xls. Using Excel, conduct a t-test (at the alpha = 0.05 significance level) on whether the mean of X2 is equal to 100. What do you conclude from this sample data? Is the population mean equal to 100? Group of answer choices -You reject the null hypothesis. You conclude that the population mean is equal to 100. -You cannot reject the null hypothesis. You conclude that the population mean is not equal to 100. -You cannot reject the null hypothesis. You conclude that the population mean is equal to 100. -You reject the null hypothesis. You conclude that the population mean is not equal to 100. HT_2448.xls: X1 X2102.04 96.13100.47 97.63103.17 95.4295.09 104.41103.81 102.0895.36 103.33103.38 112.25100.26 96.9397.24 100.1999.61 102.7096.00 106.94100.69 102.29100.50 100.0098.81 97.6795.15 99.09100.01 98.57102.88 97.70101.36 108.11103.05 106.9496.17 104.3698.44…
State the null and alternative hypotheses Choose and state the appropriate statistical procedure (independent or paired t-test), for independent t-tests assume equal variances. Identify the level of significance and corresponding critical value Calculate t Express your results in terms of p-values (p < or p > α) Determine whether your results are significant State in one or two sentences your conclusions. Do vegetarians have lower cholesterol levels than nonvegetarians? Let α = .01.
What type of hypothesis test should be performed? Ex: Left-tailed z-test, unpaired t-test, paired t-test, or Two-tailed z-test What is the test statistic? Ex: 0.123 What is the number of degrees of freedom? Ex: 25 Does sufficient evidence exist to support the claim that the voltage of the batteries made by the two manufacturers is different at the α=0.1 significance level? Ex: yes or no
What type of hypothesis test should be performed? Ex: Left-tailed z-test, Two-tailed z-test, Paired t-test, or Unpaired t-test What is the test statistic? Ex: 0.123 What is the number of degrees of freedom? Ex: 25 Does sufficient evidence exist to support the claim that the voltage of the batteries made by the two manufacturers is different at the α=0.1 significance level? Ex: yes or no
A simple random sample of the ages of 72 hospital nurses was withdrawn from a normal population with standard deviation 11.3 years. If the sample mean average is x=34.6 years, use alpha=0.01 significance level to test the claim that the mean age of hospital nurses when they started their careers is more than 32 years. Use methods:z-stat and p-value.
The display provided from technology available below results from using data for a smartphone carrier's data speeds at airports to test the claim that they are from a population having a mean less than 6.00 Mbps. Conduct the hypothesis test using these results. Use a 0.05 significance level. Identify the null and alternative hypotheses, test statistic, P-value, and state the final conclusion that addresses the original claim. T-Test μ<6.00 t=−0.198213 p=0.421896 x=5.83 Sx=5.753382 n=45 Assuming all conditions for conducting a hypothesis test are met, what are the null and alternative hypotheses? identify the test statistic pvalue conclusion
Quick note for SPSS users: To get SPSS to run the analysis in the correct “direction” from the Analyze > Compare Means > Paired-Samples T Test... protocol, please enter the after variable first, and the before variable second. (SPSS analyzes using first variable minus second variable.)You wish to test the following claim (HaHa) at a significance level of α=0.001α=0.001. For the context of this problem, μd=μ2−μ1μd=μ2-μ1 where the first data set represents a pre-test and the second data set represents a post-test. Ho:μd=0Ho:μd=0 Ha:μd≠0Ha:μd≠0You believe the population of difference scores is normally distributed, but you do not know the standard deviation. You obtain the following sample of data: pre-test post-test 55 57.2 45.3 38.5 42.3 41.7 41.9 19.5 37 35.9 51.4 42.9 48 49.9 43.3 34.5 41.3 34.3 42.1 35.3 51.2 31.2 53.6 50.1 53.6 67.1 47.2 46.9 46.4 38.1 31.6 32.6 52.7 41.6 44.8 41.1 What is the test statistic for this…
Can't find test statistic or p-value :,( test statistic is NOT 0.570 or 0.572 p-value not 0.2843 nor 0.2837
T-Test μ<4.00 t=−3.803793 p=0.000218 x=3.33 Sx=1.181583 n= 45 The display provided from technology available below results from using data for a smartphone carrier's data speeds at airports to test the claim that they are from a population having a mean less than 4.00 Mbps. Conduct the hypothesis test using these results. Use a 0.05 significance level. Identify the null and alternative hypotheses, test statistic, P-value, and state the final conclusion that addresses the original claim. Identify the test statistic: (Round to two decimal places as needed.) Identify the P-value. (Round to three decimal places as needed.) State the final conclusion that addresses the original claim: Choose the correct answers in parentheses. (Reject/Fail to reject) H0. There is not (sufficient/not sufficient) evidence to support the claim that the sample is from a population with a mean less than 4.00 Mbps.
Consider a drug that is used to help prevent blood clots in certain patients. In clinical trials, among 5936patients treated with this drug,155developed 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. the test statistic_____ pvalue_____ Identify the conclusion for this hypothesis test. A.Fail to reject H0.There is not sufficient evidence to warrant rejection of the claim that 3% of users develop nausea. B.Reject H0. There is not sufficient evidence to warrant rejection of the claim that 3% of users develop nausea. C. Fail to reject H0. There is sufficient evidence to warrant rejection of the claim that 3% of users develop nausea. D.Reject H0. There is sufficient evidence to warrant rejection of the claim that 3% of users develop nausea Does nausea appear to be a…
Google Sheets can be used to find the critical value for an F distribution for a given significance level. For example, to find the critical value (the value above which you would reject the null hypothesis) for α=0.05 with dfbetween=4 and dfwithin=30, enter =FINV(0.05,4,30) Enter this into Google Sheets to confirm you obtain the value 2.69. You conduct a one-factor ANOVA with 8 groups and 10 subjects in each group (a balanced design). Use Google Sheets to find the critical values for α=0.1 and α=0.02 (report accurate to 3 decimal places).F0.1=F0.02=
Where are the critical region(s) located in a z-distribution if a two-tailed hypothesis test was conducted using an alpha = 0.0892? Report the complete z-score (no rounding)

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What is the chi-square test-statistic for this data? x²: = For significance level alpha 0.1, what is the chi-square Critical Value? Critical Value = What would be the conclusion of this hypothesis test? Reject the Null Hypothesis Fail to roiect Jull Hynethoric