Based on a random sample of 50, a 95% confidence interval for the population proportion was computed. holding everything else constant, which of the following will reduce the length of the confidence interval by half? (check all that apply): a. decrease the sample proportion by half. b. quadruple the sample size. c. double the sample size. d. change the confidence level to 68%. e. change the confidence level to 99.7%.

step-by-step explanation:

439400

step-by-step explanation:

130^2 = 16900

16900*26 = 439400

total amount of money that he should pay if he has not used his duty free exemption is $98

step-by-step explanation:

given a united states citizen returning to the states declares the following items at the customs office: 3 shirts at $8.50 each 2 dresses at $27.50 each 1 pair of gold cuff links at $17.50 per pair. we have to find how much he pay

cost of 3 shirts if one cost at $8.50 is

cost of 2 dresses if one cost at $27.50 is  

cost of 1 pair of gold cuff at $17.50

so, total amount of money that he should pay if he has not used his duty free exemption is   $25.5+$55+$17.50=$98

a 360 degree rotation

step-by-step explanation: