Now , d.f.=(r-1)*(s-1)=(4-1)*(3-1)=3*2=6
Where , r be the number of rows and s be the number of columns.
Since ,
Therefore , the range of the p-value is ,
0.01 < p-value < 0.001 ; From chi-square table
A chi-square statistic (x) from a 4 x 3 two-way (contingency) table is 16.93529. Determine the...
Find the expected count and the contribution to the chi-square statistic for the Group 1, No) cell in the two-way table below. Yes No Total Group 1 55 43 98 Group 2 140 61 201 Group 3 66 27 93 Total 261 131 392 Round your answer for the excepted count to one decimal place, and your answer for the contribution to the chi-square statistic to three decimal places. Expected count= 32.75 x 29 contribution to the chi-square statistic=
Calculate the test statistic. Chapter 12. Chi-Square Test Saved Help Save & Exit Su Check my w Given the following contingency table, conduct a test for Independence at the 5% significance level. (You may find It useful to reference the appropriate table: chi-square table or F table) Variable A points Variable B 36 35 31 51 eBook a. Choose the null and alternative hypotheses. Hint Ho: The two variables are independent.; HA: The two variables are dependent. O Ho: The...
А 10 40 B 20 30 у b The contingency table shown to the right gives a cross-classification of a random sample of values for two variables, x and y, of a population a. Find the expected frequencies. Note: You will first need to compute the row totals, column totals, and grand total. b. Determine the value of the chi-square statistic. c. Decide at the 5% significance level whether the data provide sufficient evidence to conclude that the two variables...
1 pts For the table below, what is the chi-square? (Round this way or the answer will not turn out right: you carn round to whole numbers for the expected frequency, but leave at least 2 decimal places on for all other chi- square calculations). Choose the answer that is closest. Not Very Pretty Too Happy Happy Happy Total 24 938 962 Were Demoted? Yes 12 No 5459 Total 299 557 106 06.92 5.96 at
When performing a chi squaredχ2 test for independence in a contingency table with r rows and c columns, determine the upper-tail critical value of the test statistic in each of the following circumstances. b. alpha = 0.01, r = 5, c = 3 c. alpha = 0.01, r = 5, c = 4 d. alpha = 0.01, r = 3, c = 4 e. alpha = 0.01, r = 4, c = 5 QUESTION: what are the critical values for...
QUESTION 8 Chi-Square (2 points) The contingency table below contains neighborhood-level homicide data broken down by victim race. Use an a of.05 Neighborhood Race Shenandoah Mahanoy North Schuylkill White Black 12 36 Hispanic 8 3 0 What is the x? critical value required for rejecting the null? (Hint: use the alpha level located above and calculate degrees of freedom to use the Chi-Square Distribution Table) 34 35 20 18
Ch 7 #10: please help complete the table a-c. Thank you!!!! Random samples of size n = 310 are taken from a population with p = 0.07. a. Calculate the centerline, the upper control limit (UCL), and the lower control limit (LCL) for the p¯p¯ chart. (Round the value for the centerline to 2 decimal places and the values for the UCL and LCL to 3 decimal places.) (fill in the blanks to complete the table) Centerline: Upper Control...
Using the accompanying data below, perform a chi-square test using alphaαequals=0.01 to determine if the proportion of "Yes" observations differs between Populations A and B. Observed frequencies: Population Yes No A 18 20 B 22 20 Expected frequencies: Population Yes No A 19 19 B 21 21 Click the icon to view an excerpt from the table of chi-square critical values. What are the null and alternative hypotheses? A. Upper H 0H0: p Subscript Upper A Baseline not equals p...
A clinic administers two drugs to two groups of randomly assigned patients to cure the same disease: 70 patients received Drug / and 80 patients received Drug II. The following table gives the information about the numbers of patients cured and those not cured by each of these two drugs.DrugCuredNot CuredI6010II5921For a chi-square test of homogeneity for this contingency table, what are the expected frequencies for the first row, rounded to two decimal places?
A clinic administers two drugs to two groups of randomly assigned patients to cure the same disease: 70 patients received Drug 1 and 80 patients received Drug 11 . The following table gives the information about the numbers of patients cured and those not cured by each of these two drugs.DragCuredNet CuredI6010II5921For a chi-square test of homogeneity for this contingency table, what are the expected frequencies for the second column, rounded to two decimal places?