A developer asserts that the mean number of visitors to a website is less than 800 per day. They sample 28 days and compute a sample mean of 789 visitors. The population standard deviation is 70 visitors. Is this sufficient evidence for the claim? a. State the Null and Alternative Hypotheses.
b. Compute the value of the test statistic.
c. Compute the P-value.
d. Based on the P-value, what decision should you make?

answer: - (a)

(b) 88 seats

step-by-step explanation:

given: in an auditorium, there are 22 seats in the first row and 28 seats in the second row.

thus first term=

second term=

the number of seats in a row continues to increase by 6 with each additional row.

⇒d= 6

a) given formula :

b)   let the number of seats (n) = 12

substitute n=12 in the explicit rule formed in (a)

∴there are 88 seats in 12 rows.

your answer is 125y5

the answer is  

c.

14,469 cubic feet

i know this one is right

the answer is $23.63