12 May 25. In Alaska, a random sample of 19 eight-grade students had a m
25. In Alaska, a random sample of 19 eight-grade students had a mean score of 275 with a population standard deviation of 55 on a national mathematical assessment test. This prompts Dr. Norman Schwartzkoff, the state school administrator to declare that the mean score was significantly lower than 285, which is the national average. At a 10 percent significance level, is there enough evidence to support the administrator’s claim? Assume the population standard deviation is unknown. Use the “t” procedure. (7 pts)
26. Please use a Pie Chart to display the data. The data is for FFY 2011, in millions of dollars.
(3 pts)
NASA BUDGET Human space flight
$8,499.9
Science, aeronautics and technology
$5,929.4
Mission support
$3,584.0
Inspector General
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