Statistics

Question

Use technology and the given confidence level and sample data to find the confidence interval for the population mean muμ. Assume that the population does not exhibit a normal distribution.
Weight lost on a diet:Weight lost on a diet:
98 % confidence98% confidence
n equals 51n=51
x overbar equals 4.0 kgx=4.0 kg
s equals 6.1 kgs=6.1 kg

 

What is the confidence interval for the population mean muμ??
nothing kgless than<muμless than<nothing kg

Answer 1

Confidence Interval = [ x - Z*s/√n, x+z*s/√n], where Z_(1-0.98)/2= 2.33

= [4 - 2.33*6.1/√51, 4+2.33*6.1/√51]

=[2.0098, 5.9902]