1. As the number of degrees of freedom in the t-distribution increases, the spread of the distribution...

Question:

1. As the number of degrees of freedom in the t-distribution increases, the spread of the ____________ (increases/decreases).
2. True or False: The t-distribution is centered at (.
3. The notation tα is the t-value such that the area under the t-distribution to the right of tα is ___________.
4. True or False: The value of t0.10 with 5 degrees of freedom is greater than the value of t0.10 with 10 degrees of freedom.
5. True or False: To construct a confidence interval about the mean, the population from which the sample is drawn must be approximately normal.
6. The procedure for constructing a confidence interval about a mean is ____________, which means minor departures from normality do not affect the accuracy of the interval?
Distribution
The word "distribution" has several meanings in the financial world, most of them pertaining to the payment of assets from a fund, account, or individual security to an investor or beneficiary. Retirement account distributions are among the most...