Amanufacturer claims that the calling range (in feet) of its 900-mhz cordless telephone is greater than that of its leading competitor. a sample of 1212 phones from the manufacturer had a mean range of 11501150 feet with a standard deviation of 2727 feet. a sample of 77 similar phones from its competitor had a mean range of 11001100 feet with a standard deviation of 2323 feet. do the results support the manufacturer's claim? let μ1μ1 be the true mean range of the manufacturer's cordless telephone and μ2μ2 be the true mean range of the competitor's cordless telephone. use a significance level of α=0.01α=0.01 for the test. assume that the population variances are equal and that the two populations are normally distributed.
step 1 of 4: state the null and alternative hypotheses for the test.
step 2 of 4: compute the value of the t test statistic. round your answer to three decimal places.
step 3 of 4: determine the decision rule for rejecting the null hypothesis h0. round your answer to three decimal places.
step 4 of 4: state the test's conclusion.

step-by-step explanation:

i found the life tables for the year 2012. 

life table of males at age 30. probability of dying between ages x and x+1

total population:  

29–30 . . . . . . . . . . . . 0.001030

30–31 . . . . . . . . . . . . 0.001061

males:  

29–30 . . . . . . . . . . . . 0.001420

30–31 . . . . . . . . . . . . 0.001448

white population

29–30 . . . . . . . . . . . . 0.001005

30–31 . . . . . . . . . . . . 0.001037

white males

29–30 . . . . . . . . . . . . 0.001372

30–31 . . . . . . . . . . . . 0.001399

non hispanic white population

29–30 . . . . . . . . . . . . 0.001083

30–31 . . . . . . . . . . . . 0.001116

non hispanic white males

29–30 . . . . . . . . . . . . 0.001477

30–31 . . . . . . . . . . . . 0.001503

jacob, non hispanic white male. 30 years old.

probability that jacob lives to be 30 years old. 

since the given probabilities are probabilities of dying, i think we simply subtract it from 1 to get the probability of living. we will use the probability of non hispanic white male.

                                          probability of living to be 30 y.o.

29 - 30 : 1 - 0.001477 = 0.998523

30 - 31 : 1 - 0.001503 = 0.998497

dilation scale factor 2: starting with δabc, draw the dilation image of the triangle with a center at the origin and a scale factor of two. notice that every coordinate of the original triangle has been multiplied by the scale factor (x2). dilation with scale factor 2, multiply by 2.

answer: your answer is c

step-by-step explanation:

answer: i believe it is c

step-by-step explanation:

because 5+4=9 so it would be 3^9