Using the paired t-test, determin if thee is a significnat difference between the means when the boards were outside v insde the chamber?

A test is made of H0: u=5 vs Ha: u<5. The true value of u is 5, and  is rejected. What type of error is this outcome? A. Type I error B. Type II error

Ray HF→ bisects ∠GHE. Calculate the measure of FG_ if EF_=4x+15 and FG_=7x-3.

Tees Does it matter what kind of tee a golfer places theball on? The company that manufactures “Stinger” teesclaims that the thinner shaft and smaller head will lessendrag, reducing spin and allowing the ball to travel farther.In August 2003, Golf Laboratories, Inc., compared thedistance traveled by golf balls hit off regular wooden teesto those hit off Stinger tees. All the balls were struck bythe same golf club using a robotic device set to swing theclub head at approximately 95 miles per hour. Summarystatistics from the test are shown in the table. Assumethat 6 balls were hit off each tee and that the data weresuitable for inference.Is there evidence that balls hit off the Stinger tees wouldhave a higher initial velocity?   TotalDistance(yards)BallVelocity(mph)ClubVelocity(mph)Regular Avg. 227.17 127.00 96.17tee SD 2.14 0.89 0.41Stinger Avg. 241.00 128.83 96.17tee SD 2.76 0.41 0.52

It is thought that basketball teams that make too many fouls in a game tend to lose the game even ir they otherwise play well. Let x be the number of fouls more than (i.e., over and above) the opposing team. Let y be the percentage of times the team with the larger number of fouls wins the game. X 0 2 5 6 y 50 43 33 26 A USE SALT Complete parts (a) through (e), given Ex - 13, Ey - 152, Er - 65, Ey? - 6114, Exy - 407, and r-0.9921. (a) Draw a scatter diagram displaying the data 50 50 45 45 40 40 35 30 30 0 25 25 30 35 40 45 50 4 30 35 40 43 50 4 x(fouls) x (fouls) xifouls) x (fouls) (b) Verify the given sums Ex, Zy, Ex, Ey, Exy, and the value of the sample correlation coefficient r. (Round your value for r to four decimal places.) Ex- Exy= (c) Find x, and y. Then find the equation of the least-squares line -a+ bx. (Round your answers to four decimal places.) (d) Graph the least-squares line. Be sure to plot the point (x, y) as a point on the line. 50 50 5 5 45 45 40 40 35 30 30 25 25k…

What is WX? X WX = Submit U W 5

Find the value for z. C 12 2 W 2 = 3 G z+1 E f3 Submit Question 3 4 LULJ F $ f4 4 3z + 2 R D f5 % 5 16 ^ O Search 6 f7 & Y L 7 f80/9 * U 8 e B 19 home 9

An instructor for a test preparation course claims that the course will improve the test scores of students. The table shows the critical reading scores for 14 students the first two times they took the test. Before taking the test for the second time, the students took the instructor's course to try to improve their critical reading test scores. At a = 0.01, is there enough evidence to support the instructor's claim? Complete parts (a) through (f). Student Score on first test Score on second test 621 573 577 627 373 369 399 717 488 553 634 478 558 623 10 11 12 13 14 D 618 518 503 604 415 350 439 609 409 481 594 431 527 591 1 2 3 4 6 8 Identify the rejection region(s). Choose the correct answer below. O A. t 2.650 O B. t 3.012 OC. t3.012 (c) Calculate d and sd. d = - 35.786 (Type an integer or a decimal. Round to three decimal places as needed.) Calculate sd- Sa = 133.096 (Type an integer or a decimal. Round to three decimal places as needed.)

In the experiment of the Charles' Law (V and T) you preformed, which variables are kept constant? Choose all the apply. n the substance

Need the claim, hypothesis, crit value(s), rejection regions, d, Sd, t test, reject or fail to, and conclusion.