The average interval for the population is expected to be 300 days, but you find that your sample has a mean interval of 290 days and a standard deviation of 50 days. The t-score is then (290â300)/(50/15^0.5) or â0.775.
It takes Mars about 687 Earth days (1.882 Earth years) to orbit the Sun.The orbital path of Mars is about twice that of Earth. Mars orbits about 227 million kilometers away from the Sun. The planet travels a distance of approximately 1.43 billion kilometers (888 million miles) in 686.971 Earth days.It takes 1.88 years for mars to make one revolution around the sun.enus orbits the sun in approximately 225 Earth days. (224.70069 days) Strange as it may seem, Venus rotates so slowly that a day on Venus is longer than its year. It take â¦ s Venus about 243 Earth days to spin once on its axis. The slow rotation is also in a retrograde (clockwise) direction, from east to west.
How long does it take Io to orbit the Sun? Io, one of the moons of Jupiter, takes about 42 hours to orbit Jupiter. Jupiter takes close to 4 332 days to orbit the Sun. So, for practical terms you may con â¦ sider that Io will take the same time as Jupiter to orbit the Sun: 4 332 days, or a little longer than 11 years and 10 months at EarthÂ´s time.