Because of the restriction, only nine values in the sample are free to vary. The test statistic,t, has nine degrees of freedom. To find the critical value, you need to use thetdistributionfor nine degrees of freedom. If the sample’stis greater than the critical value, then you reject ...
Step 5:Find therejection regionarea (given by your alpha level above) from thez-table. An area of .05 is equal to az-scoreof 1.645. Step 6:Find thetest statisticusing this formula: For this set of data: z= (112.5 – 100) / (15/√30) = 4.56 ...
Step 3:Insert the numbers from Step 1 and Step 2 into the test statistic formula: Solving the formula, we get: Z = 8.99 We need to find out if the z-score falls into the “rejection region.” Step 4:Find the z-score associated withα/2.I’ll use the following table of known val...
How to Find P-Value? To calculate the p-value, you must first find the test statistic, a value which results from the particular test of significance (or hypothesis test) you use to analyze the data. Common tests of significance include the z-test, the t-test, and the χ2-test. ...
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Step 1: First, select cell F3, enter the AVERAGE excel function to determine the sample mean (x̅), and then, press Enter.=AVERAGE(B3:B14)Step 2: Next, choose cell F4, enter the STDEV.S() to find the sample standard deviation formula, and then, press Enter....
Let's say you scored 57 on an English test out of 112 marks. The percentage of marks is calculated using the following formula: Divide scored marks earned by total marks: 57 / 112 = 0.51 Multiply by 100 to get percentage: 0.51 x 100 = 51% So, you scored 51% on the test!Table...
Calculate q, the Bartlett statistic. Calculate “c”, the correction factor. Calculate the test statistic using the formula 2.3206(q/c) Find the critical chi square value. You can use acritical chi square tableto do this. If the Bartlett test statistic from Step 6 is is greater than the ...
χ2can be used to test whether two variables are related or independent of each other. It can also be used to test the goodness of fit between an observed distribution and a theoretical distribution of frequencies. Formula for a Chi-Square (χ2) Statistic ...