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- e Chapter 9: Hypothesis Tests for X C Home Chegg.com C Get Hcmewcrk Help with C https://egcc.instructure.com/courses/15697/assignments/366801 90% Q Search G.. 12% of all college students volunteer their time. Is the percentage of college students who are volunteers different for students receiving financial aid? Of the 358 randomly selected students who receive financial aid, 25 of them volunteered their time. What can be concluded at the a = 0.01 level of significance? a. For this study, we should use Select an answer b. The null and alternative hypotheses would be: Ho: ? v Select an answer v (please enter a decimal) H1: ? v Select an answer v (Please enter a decimal) C. The test statistic ? v = (please show your answer to 3 decimal places.) d. The p-value = (Please show your answer to 4 decimal places.) e. The p-value is ? va f. Based on this, we should Select an answer v the null hypothesis. g. Thus, the final conclusion is that ... O The data suggest the population proportion is…TITT The data shown to the right are from independent simple random samples from three populations. Use these data to complete parts (a) through (d). Sample 1| Sample 2| Sample 3 o 3 5 Click the icon to view a table of values of Fa. 6 2 14 a. Compute SST, SSTR, and SSE using the following computing formulas, where x, is the ith observation, n is the total number of observations, n; is the sample size for population j, and T; is the sum of the sample data from population j. SST = Ex? - (Ex)² /n, SSTR = E (T? /n) - (Ex)² /n, and sSE = SST -SSTR Compute the values required to find SST, SSTR, and SSE. n= Ex = Ex? = E(1; /n) = (Type integers or decimals. Do not round.) Calculate SST, SSTR, and SSE using the computing formulas. SST = (Type an integer or a decimal. Do not round.) SSTR= (Type an integer or a decimal. Do not round.) SSE = (Type an integer or a decimal. Do not round.) b. Compare your results in part (a) for SSTR and SSE with the following results from the defining formulas. SSTR…provide answer with full explanation ( only type )
- DalDetermine whether the samples are independent or dependent. A data set includes systolic blood pressure measurements from each of 230 randomly selected men and 230 randomly selected women. Choose the correct answer below. OA. The samples are independent because there is not a natural pairing between the two samples. OB. The samples are dependent because there is a natural pairing between the two samples. OC. The samples are independent because there is a natural pairing between the two samples. OD. The samples are dependent because there is not a natural pairing between the two samples.Eamine the computation formula for r, the sample correlation cofficient. (a) in the formula for r, t we exchange the symbols xand y, do we get a ciferert result or do we get the same (equivalent) result? Eplain your answer. O The resut is different because the formula is dependent on the symbois. O The resut is dimferent because the formula is not dependent on the symbols. O The resut is the same because the formula is dependent on the symbois. • The resut is the same because the formula is not dependent on the symbols. (b) we have a set of x and y data values and we exchange comesponding x and y values to get a new data set, should the sample comrelation coefficient be the same for both sets of cata? Explain your answer O The resut is the same because the formula is dependent on which values are the x values and which values are the y values. O The resut is different because the formua is not dependent on which values are the x values and which values are the y values. • The resut is…
- 18 A class of 40 students sat for an examination and obtained the following results: Marks 0-9 10-19 20-29 30-39 40-49 50-59 No. of Students 12 4 Determine the mode. * 22.83 25.33 27.75 25.77Cont. Comes up 3 followed by a head and then a tail on the coin, construct a trace diagram to show the 18 elements of the sample space S.Which of the following ensures a sample is representative of its population? The sample is convenient. The sample has properties that are matched to those in the population. The sample is the same size as the population. The sample is unique.
- Fill in the correct data being asked. SIMPLE/SINGLE TOSS The following are obtained results from Single Toss Coins. Consider the given in each colored cells as independent results, and find the other data being asked in each uncolored cells. TT OH EH OT ET DH DT TT(%) 10 7 5 2 - 12 10 20% 55 5 - 100 —Samples of four different chocolate chip cookies show the following numbers of calories for the suggested servings of each brand. At α = 0.05, is there a difference in the number of calories for the different brands?No SIM ? 11 10:27 am 48% 4 revision wk ch 6A.pdf Grade 8- Math V International School Lahore (Chapter:6) Revision worksheet 6A Q1.Simplify each of the following: (5a3 b*)3 a) 25ab3 b) 2ikı2)4 8 j2 k3 e2+ef c) ef + f² gh+h d) g²+7g+6 e) 9h3x2 4ky2 5k2 y4 12 h² y 25 a bc 16 х у3 f) 15ab c2 8 x2 y z 14 a³ b 21abc g) 6ху 12 х2 уз 81 a3 x3 h) 16bxy 63ах2 24 b2 y 4(а+3b) i) а-зь 3(а-зь) 259a+3b) 3(g+h) j) 10f 8g+8h 5 f3 ax k) ах-а ах-х 2x²y³ I) 7az3 4x2z За X 21 a2z 8ху m) *) 9b 3d 16be + ( 21c 9a