1.
Type answer here. 2.602
Type answer here. -1.729
Type answer here. +/- 2.179
2.
Type answer here. 3.65
Type answer here. 2.45
Type answer here. 1.32
3.
Type answer here. 1.379
Type answer here. -1.714
skip
Type answer here. 2.75
4.
Type answer here. 2.34
Type answer here. 2.65
skip
Type answer here. 2.12
5.
Type answer here. 2.502
Type answer here. -2.819
skip
Type answer here. 3.26
Type answer here. 2.35
11.
Ho: Type answer here. mean = $67
H1: Type answer here. mean >$67
Type answer here. There is a 0.02 chance of obtaining a sample mean of $73 or higher from a population whose mean is $67
Type answer here. Reject the null hypothesis
13.
Ho: Type answer here. Ho: mean = 22
H1: Type answer here. H1 mean >22
Type answer here. The sample is random, the sample size is large, n = 200 > 30
Type answer here. Classical: t =2.176 >t 1.660, reject the null hypothesis
Type answer here. There is sufficient evidence to claim that students who complete the core curriculm score above 22 on the math portion of the SAT
15.
State your pvalue or test statisic value and conclusion. Ho: mean =9.02 cm ^3, H1 mean <9.02 cm ^3 Classical: to =-4.553 <t0.01 = 2.718 cm ^2, reject the null hypothesis
17.
State your pvalue or test statisic value and conclusion. Ho: mean =703.5, H1: mean >703.5 Classical: to=0.813 <t0.05 =1.685, do not reject the null hypothesis
19.
Report your confidence interval and conclusion here.
H null: mean =40.7 years, H1: mean not equal to 40.7 years, 95 % confidence interval, lower bound: 35.44 years, upper bound: 42.36 years.There isn’t signficant evidence to conclude the mean age of a death row inmate has changed
1.
Type answer here. 28.869
Type answer here. 14.041
Type answer here. 16.047, 45.722
3.
Type answer here. 20.496
Type answer here. 13.091
Skip but feel free to sketch on a piece of paper for your benefit.
Type answer here. Do not reject the null hypothesis
13. Feel free to use any method you want. If you use the classical method please report the value of your test statistic and your decision. Likewise if you use the pvalue method please state your pvalue and your decision. Hint: The sample standard deviation (s) is 15.20.
Type answer here. Ho: sigma = 18, H1 sigma < 18 x^2o=6.422 >x^2 0.95 =3.325, reject the null hypothesis
15. Feel free to use any method you want. If you use the classical method please report the value of the test statistic and your decision. Likewise if you use the pvalue method please state your pvalue and your decision.
Type answer here. Ho: sigma = 8.3, H1: sigma <8.3, x^2O= 15.639 <X^20.90 =15.659, reject the null hypothesis at 0.10 level of significance