Show that an equivalent way to define the test for significance of regression in simple linear regression is to base the test on r2 as follows: to test h_{0}=\beta _{1}=0 versus h_{1}: \beta _{1}\neq 0 , calculate f_{0}=\frac{r^{2}(n-2)}{1-r^{2}} and to reject h_{0}: \beta _{1}=0 if the computed value f_{0}> f_{\alpha ,1,n-2} . suppose that a simple linear regression model has been fit to n = 26 observations and r2 = 0.7.a) test for significance of regression at \alpha= 0.05. h0: (reject, do not reject) select oneb)what is the smallest value of r2 that would lead to the conclusion of a significant regression if \alpha= 0.05.

Yosef can eat 21 jamuns while rose can eat just 15 . complete the blank. yosef can eat % more jamuns than rose.

Leslie started last week with $1200 in her checking account. during the week, she wrote the checks below. trans typ./ check no. date description of transaction payment/ debit deposit/ credit (+) balance 1,200 00 324 10/6 miller's food market 45.87 45 87 groceries 1,154 13 325 10/7 cyber center computer outlet 218.59 218 59 monitor 935 54 326 10/9 sandy's beauty salon 30.00 30 00 haircut and styling 900 59 deposit 10/10 paycheck 621.33 621 33 1,621 92 evaluate leslie's check register. a. leslie did a good job. everything is correct. b. the final balance is wrong; she did not add everything correctly. c. leslie should have written debit instead of deposit for the transaction type. d. leslie switched the debit and credit columns.

Acable company claims that the average household pays $78 a month for a basic cable plan, but it could differ by as much as $20. write an absolute value inequality to determine the range of basic cable plan costs with this cable company. a. |x − 78| ≥ 20 b. |x − 20| ≥ 78 c. |x − 20| ≤ 78 d. |x − 78| ≤ 20