5 Question Help

In 1998 there were 1506 daily newspapers in the country. By 2004, there were only 1452 daily newspapers.

a. Write two ordered pairs of the form (years after 1998, number of daily newspapers) for this situation.

b. The relationship between years after 1998 and numbers of daily newspapers is linear over this period. Use the ordered pairs from part (a) to write an equation for

the line relating years after 1998 to numbers of daily newspapers.

c. Use the linear equation in part (b) to estimate numbers of daily newspapers in 2001.

a. The two ordered pairs are

(Use a comma to separate the two ordered pairs.)

b. The equation for the line relating year after 1998 to number of daily newspapers is y=-

Simplify your answer.)

c. The number of daily newspapers in 2001 is

(Simplify your answer.

Atechnician compares repair costs for two types of microwave ovens (type i and type ii). he believes that the repair cost for type i ovens is greater than the repair cost for type ii ovens. a sample of 6767 type i ovens has a mean repair cost of $79.79$⁢79.79. the population standard deviation for the repair of type i ovens is known to be $19.18$⁢19.18. a sample of 5555 type ii ovens has a mean repair cost of $75.24$⁢75.24. the population standard deviation for the repair of type ii ovens is known to be $21.40$⁢21.40. conduct a hypothesis test of the technician's claim at the 0.050.05 level of significance. let μ1μ1 be the true mean repair cost for type i ovens and μ2μ2 be the true mean repair cost for type ii ovens. step 2 of 4 : compute the value of the test statistic. round your answer to two decimal places.