Credit card debts | English homework help

1. A faith card watchdog bunch assertions that there is a distinction in the medium faith card debts of households in California and Illinois. The results of a chance examine of 250 households from each particularize are shown at the left. The two cases are stubborn. Assume that s1 = $1045 for California

and s2 = $1350 for Illinois. Do the results buttress the bunch’s assertion? Use a = 0.05.

2. A examine indicates that the medium annual hire for forensic experience technicians agoing for topical and particularize councils are $55,950 and $51,100, respectively. The examine includes a chancely chosen case of extent 100 from each council limb. Assume that the population model deviations are $6200 (local) and $5575 (state). The two cases are stubborn. At a = 0.10, is there sufficient ordealimony to complete that there is a distinction in the medium annual hire?

a. Realize the assertion and particularize H0 and Ha.

b. Realize the equalize of soundness a.

c. Find the accurate values and realize the exclusion regions.

d. Find the modelized ordeal statistic z. Sketch a graph.

e. Decide whether to repudiate the inoperative theory.

f. Interpret the firmness in the composition of the first assertion.

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