Answer:
-9
Step-by-step explanation:
find the value of i2, which is -9, find the value of i7, which is 6
Then, add them together and multiply by the number of terms in the sequence divided by 2 (6/2=3)
Answer:
a)6 hrs
b)faster
Step-by-step explanation:
a) 9*2/3=6
Answer:
Yes. Fertilization increases grape yields by more than 5 pounds.
Step-by-step explanation:
Let f-fertilized and o-old(unfertilized)
#First, we use our data to calculate the standard error:

#State both null and alternative hypothesis:

#We determine our degrees of freedom as 87.02(using R), we now compute the t-value as:

Since, the p-value is low, we Reject the null hypothesis. The is enough evidence suggesting that grape yields increase by more than 5 pounds than mean yields of unfertilized grapes.
Note that the tenth place value is 8 (bolded):
243.875
Look at the place value directly right of the bolded number (hundredth place value). It is a 7. Because 7 is greater than 5, round up
243.875 rounded to the nearest tenth = 243.9
243.9 is your answer
hope this helps