Criteria for laptop search:
Laptop specifications:
• At least 3GB of memory
• At least 250 GB hard drive
• At least 14" Screen
• Weigh at most 7 pounds
• At least a 1 year manufacturer warranty
• Built-in wireless router
• Must be new, not used of refurbished
Spending Limit: $800
• Includes laptop, sales tax, and shipping
• For the purpose of this project, use 7.5% sales
tax

I got the answers I don’t know if it’s right but I hope it helps

Brand 1. Brand 2. Brand 3
Store 1: 720 50.4 770.40
Store 2: 511.99 43.53 555.51
Store 3: 615.98 38.50 654.48

Which of the following tables represents exponential functions?

Which shows the correct substitution of the values a,b and c from the equation 1=-2x+3x^2+1

An automobile assembly line operation has a scheduled mean completion time, μ, of 12 minutes. the standard deviation of completion times is 1.6 minutes. it is claimed that, under new management, the mean completion time has decreased. to test this claim, a random sample of 33 completion times under new management was taken. the sample had a mean of 11.2 minutes. assume that the population is normally distributed. can we support, at the 0.05 level of significance, the claim that the mean completion time has decreased under new management? assume that the standard deviation of completion times has not changed.