Reference no: EM1323345
Q1) You are given sample mean and sample standard deviation. Use this information to create 90% and 95% confidence intervals for population mean. Which interval is wider? If convenient, use technology to create confidence intervals.
Random sample of 37 eight-ounce serving of different juice drinks has mean of 84.4 calories and standard deviation of 43.8 calories
90% confidence interval is ?
Which interval is wider?
a) The 95% confidence interval.
b) The 90% confidence interval.
Q2) Two events are mutually exclusive
i) If their intersection is 1
ii) If they have no sample points in common
iii) If their intersection is 0.5
iv) None of these alternatives is correct.
Q3) Events which have no sample points in common are:
i) Independent events
ii) Posterior events
iii) Mutually exclusive events