The communications regulator of a certain country released a report refuting an earlier report released by the same regulator. The new report indicates that cable subscribers would save as much as 10% on their cable television bills. The average monthly cable prices in the country were estimated to be $46.02. Typically, such reports announce a margin of error of. say, $1.36 and a condence level of 90%. Suppose the standard deviation of the monthly cost of cable television bills was $8.00. Complete parts a through c below. 3. Determine the sample size of the new study released by the regulator. The sample size is . (Round up to the nearest whole number as needed.) b. Calculate the sample size iequired to decrease the margin of error by a dollar. The sample size required is (Round up to the nearest whole number as needed.) c. A typical sample size used in national surveys in the country is 1,450 to 1.050. Determine a range for the margin of error corresponding to this range of sample sizes. The range for the margin of error is from $ to $ (Round up to the nearest cent. Use ascending order.)