Question: Construct 90%, 95%, and 99% confidence intervals to estimate from the following data. State the point estimate. Assume the data come from a normally distributed

Construct 90%, 95%, and 99% confidence intervals to estimatefrom the following data. State the point estimate. Assume the data come from a normally distributed population.

11.8 11.6 11.9 13.0 12.5 11.4 12.0

11.7 11.8 11.8

(Round the intermediate values to 4 decimal places. Round your answers to 2 decimal places.)

90% confidence interval: ? ?

95% confidence interval: ? ?

99% confidence interval: ? ?

The point estimate is

.

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