The sample space of a population being researched contains 58 values and a mean of 318.6. the population has a known standard deviation of 29.2. identify the margin of error for a 95% confidence interval estimate of the mean of the population.

We have the following data:

Sample size = n = 58

Sample mean = x = 318.6

Population Standard Deviation = s = 29.2

Confidence Level = 95%

Since the population standard deviation is known, we can use z distribution to find the critical values for the 95% confidence interval. The z value from z table for 95% confidence interval comes out to be

z = 1.96

The confidence interval for the population mean will be:

Using the values of all the variables, we get:

Thus the 95% confidence interval about the population mean is (311.09 , 326.11).

Conclusion:

We are 95% confident that the true value of population means is between the bounds of the confidence interval i.e. between 311.09 and 326.11

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.

answer: you need to organize this better it does not make sense.

step-by-step explanation: ?