Which is true about a 90% confidence interval based on a given sample? i. the interval contains 90% of the population. ii. results from 90% of all samples will lie in this interval. iii. the interval is smaller than a 95% confidence interval would be?

the answer is (-4,-4)

hope this ! : d

54 kilometers per hour

step-by-step explanation:

according to rules:

1 km = 1000 meter

which means that 1 meter = 1/1000 km

1 hour = 3600 second [ as 1 hour = 60 min = 60 *60 seconds ]

which means that 1 second = 1/3600 hour

therefore, 1 kilometer/hour =

thus to convert 15 meter per second to kilometer per hour, we multiply 15 to 3.6 kilometer/hour.

15 meter/second=   which is the required answer.