Easy question get fr-ee points! 1.how many times is the number 6 x 10^7 greater than the number 2 x 10^5

2.how many times is the number a x 10^12 smaller than the number 16 x 10^16?

3.the mass of earth is 6.0 x 10^21 tons the mass of jupiter is 1.9 x 10^24 tons how many times is the mass of jupiter greater than the mass of earth rounded to the nearest whole number?

4.the distance from the sun to the earth is 1.496 x 10^8 km. the distance from the sun to saturn is 1.429 x 10^9 km. how many times is earth closer to the sun than saturn is?round to the nearest whole number

An automobile assembly line operation has a scheduled mean completion time, μ, of 12 minutes. the standard deviation of completion times is 1.6 minutes. it is claimed that, under new management, the mean completion time has decreased. to test this claim, a random sample of 33 completion times under new management was taken. the sample had a mean of 11.2 minutes. assume that the population is normally distributed. can we support, at the 0.05 level of significance, the claim that the mean completion time has decreased under new management? assume that the standard deviation of completion times has not changed.