Mathematics, 16.11.2019 04:31 kay4358

According to city reports, it was found that the mean age of the prison population in the city was 26 years. marc wants to test the claim that the mean age of the prison population in his city is less than 26 years. he obtains a random sample of 25 prisoners, and finds a mean age of 24.4 years and a standard deviation of 9.2 years. at a significance level of 0.05, what should his conclusion be? note: the p-value = 0.1966.

do not reject the null hypothesis. there is not sufficient evidence that the mean age is less than 26 years.

a)reject the null hypothesis. the evidence suggests that the mean age is less than 26 years.

b)there is not enough information to perform the test.

c)do not reject the null hypothesis. there is not sufficient evidence that the mean age is less than 24.4 years.

d)reject the null hypothesis. there is sufficient evidence that the mean age is less than 24.4 years.

Answers: 1

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 18:00, phillipsk5480

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)

Answers: 3

continue

Mathematics, 21.06.2019 18:50, firenation18

The table represents a function. what is f(-2)? a.-3 b. -1 c.1 d.3

Answers: 1

continue

Mathematics, 21.06.2019 20:00, jacobbrandon2002

What sums are equal to 6/12? choose all answers that are correct a.6/12+6/12+6/12+6/12+6/12+6/12 b.2/12+1/12+1/12+2/12 c.5/12+1/12 d.1/12+1/12+1/12+3/12 plz : )

Answers: 1

continue

Mathematics, 22.06.2019 00:00, xXwolfieplayzXx

Aspacecraft can attain a stable orbit 300 kilometers above earth if it reaches a velocity of 7.7 kilometers per second. the formula for a rocket's maximum velocity v in kilometers per second is vequalsminus0.0098tplusc ln upper r, where t is the firing time in seconds, c is the velocity of the exhaust in kilometers per second, and r is the ratio of the mass of the rocket filled with fuel to the mass of the rocket without fuel. find the velocity of a spacecraft whose booster rocket has a mass ratio of 20, an exhaust velocity of 2.1 km/s, and a firing time of 15 s. can the spacecraft achieve a stable orbit 300 km above earth?

Answers: 3

continue

You know the right answer?

According to city reports, it was found that the mean age of the prison population in the city was 2...