About 7,460 punds if you add everything together
1. Note that

2. Then the equation
can be rewritten

3. Solve it:

Answer: x=6
3,000 + 800 + 90 + 7 + .003 = 3,897.003
Hope this helps!!!:)
Answer:
Roland is right, he can be 95% sure that average gas prices have gone up since the same time last year.
Step-by-step explanation:
Let μ be average gas price around Syracuse.
Then hypotheses are:
μ = $2.68
μ > $2.68
Then test statistic can be calculated as:
z=
where
- X is the Roland's calculated average gas prices of 50 gas stations ($2.74)
- M is the average average gas prices in the entire of Syracuse last year
- s is the standard deviation ($0.11)
Then z=
≈ 3.86
Since P-value of test statistic ≈ 0.00006 <0.05 (significance level), we can reject the null hypothesis.
Answer:
all of them in the picture are equivalent
Step-by-step explanation:
Sorry if its wrong I think you missing some of the work but hope this helps!