Answer:
Since the calculated value of F = 1.4397 is less than the critical value of
F (9,9)= 2.4403 we conclude that the first instructor's variance is smaller and reject H0.
Step-by-step explanation:
1)Formulate the hypothesis that first variance is equal or greater than the second variance
H0: σ₁²≥σ₂² against the claim that the first instructor's variance is smaller
Ha: σ₁²< σ₂²
2) Test Statistic F= s₂²/s₁²
F= 84.8/ 58.9= 1.4397
3)Degrees of Freedom = n1-1= 10-1= 9 and n2 = 10-1= 9
4)Critical value at 10 % significance level= F(9,9)= 2.4403
5)Since the calculated value of F = 1.4397 is less than the critical value of
F (9,9)= 2.4403 we conclude that the first instructor's variance is smaller and reject H0.
The answer is x=3; i did the work below
Answer:
for speed/distance conversation allow for a small amount of rounding up/ down.
sub 18 minute 5k
Follow our training plan for a sub 18 minute 5k
Before starting this plan it is recommended that your 5k PB should be below the sub 20 minute 5k mark already and you are able to run faster than your target 5k race pace for at least 1km.
This is because during the course of this 18 Minute 5k Training Plan you will be running slightly faster than your race pace for short durations so you really need to ensure that you can run 1km at 5:45 pace. If you are not quite there yet, have a look at one of our other 5k training plans and build up to this one:
Answer:
117
Step-by-step explanation:
prime factors of 9 are 3 and 3
prime factor of 13 is 13
multiply them
Answer: The answer is 1.5
Step-by-step explanation: First you want to add 5x + x which equals 6x. Then you want to add -5+-4 which = -9. Then you add 9 to the -9 to get rid of it. But you have to do it on both sides so you add 9+0 which =9. Finally you divide 9 by 6 which equals 1.5
