TRUE OR FALSE?

1.Significant difference in a statistical sense means that the observed, or apparent, difference is of practical importance and should not be neglected. ___

2.For a fixed sample size, testing at the 1% level instead of the 5% level will decrease the chance of committing a Type II error. ___

3.If random samples of size 20 are drawn from a normal population, the means of these samples will be normally distributed. ___

4.When a 95% confidence interval around a point estimate of includes _o, H_o should not be rejected at the 0.05 level. ___

5.A P-value less than 0.05 is proof that the null hypothesis is false. ___