# Question: In Exercise 9 31 two intervals were given for the same

In Exercise 9.31, two intervals were given for the same data, one for 95% confidence and one for 90% confidence.

a. How would a 99% interval compare? Would it be narrower than both, wider than both, or between the two in width. Explain.

b. If we wanted to use a 99% confidence level and get a narrower width, how could we change our data collection?

a. How would a 99% interval compare? Would it be narrower than both, wider than both, or between the two in width. Explain.

b. If we wanted to use a 99% confidence level and get a narrower width, how could we change our data collection?

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