Amanufacturing firm claims that the batteries used in their electronic games will last an average of 30 hours. to maintain this average,16 batteries are tested each month. if the computed t value falls between t−0.025 and t0.025, the firm is satisfied with its claim. a. find the p(x¯) using excel. b. try to estimate the value of p(x¯ > 30) using t table.

Which of these people has balanced their checkbook correctly? oa. gary: the balance in his check register is $500 and the balance in his bank statement is $500. b. gail: the balance in her check register is $400 and the balance in her bank statement is $500. c. gavin: the balance in his check register is $500 and the balance in his bank statement is $510.

Timmy uses 1 1 2 cups of sugar for every 2 gallons of lemonade he makes. how many cups of sugar would timmy use if he makes 13 gallons of lemonade?

Acd that is originally priced at $15.85 red-tagged for the sale. what is the sale price of the cd