189 (+20), 209 (+40), 249 (+80), 329 (+160), 489 (+320), 809 (+640), 1449...
We are adding twice what we added to the previous number. Each time we double what we're adding.
Answer:
step 3 didn't divide by 2
Step-by-step explanation:
in step

Yes I can help you what do you need.
Answer:
316,912,650,057,057,350,374,175,801,344
Step-by-step explanation:
You can see that this sequence is geometric so you need to know the geometric sequence which is
and if you plug in every thing you get
=
which would be
which is 316,912,650,057,057,350,374,175,801,344
Answer: B) 4.963±0.019.
Step-by-step explanation:
Confidence interval for population mean ( when population standard deviation is not given) is given by :-
, where
= Sample mean
n= Sample size
s= sample standard deviation
t* = critical t-value.
As per given:
n= 50
Degree of freedom = n-1 =49

s= 0.067 lb
For df = 49 and significance level of 0.05 , the critical two-tailed t-value ( from t-distribution table) is 2.010.
Now , substitute all values in the formula , we get

Hence, a 95% confidence interval for the mean weight (in pounds) of the mulch produced by this company is
.
Thus , the correct answer is B) 4.963±0.019.