130. Calculate the general t statistic if estimate is equal to 3.7, hypothesized value is equal to 3.5 and the standard error is equal to 0.2. 131. Calculate the general t statistic if estimate is...

130. Calculate the general t statistic if estimate is equal to 3.7, hypothesized value is equal to 3.5 and the standard error is equal to 0.2.

131. Calculate the general t statistic if estimate is equal to 3.5, hypothesized value is equal to 3.1 and the standard error is equal to 0.8.

133. One of the following assumptions is not required for unbiasedness of regression parameters?

Please help me for theese 3 questions. Thank you advance!