Mathematics, 13.12.2019 20:31 ayoismeisjuam
Asample of 114 mortgages approved during the current year showed that 36 were issued to a single-earner family or individual. the historical percentage is 28 percent. at the .05 level of significance in a right-tailed test, has the percentage of single-earner or individual mortgages risen?
(a-1) h0: π ≤ .28 versus h1: π > .28. choose the right option. reject h0 if zcalc > 1.645 reject h0 if zcalc < 1.645 a b
(a-2) calculate the test statistic. (round intermediate calculations to 2 decimal places. round your answer to 4 decimal places.) test statistic
(a-3) the null hypothesis should be rejected.
i. true
ii. false
(b) is this a close decision?
i. yes
ii. no
(c) state any assumptions that are required.
i. n π < 10 and n(1 − π ) > 10
ii. n π < 10 and n(1 − π ) < 10
iii. n π > 10 and n(1 − π ) > 10
iv. n π > 10 and n(1 − π ) < 10
Answers: 2
Mathematics, 21.06.2019 20:10, jackfrost5
The population of a small rural town in the year 2006 was 2,459. the population can be modeled by the function below, where f(x residents and t is the number of years elapsed since 2006. f(t) = 2,459(0.92)
Answers: 1
Mathematics, 22.06.2019 01:30, 24kfjkasklfjl
Use the linear combination method to solve the system of equations. explain each step of your solution. if steps are not explained, you will not receive credit for that step. 2 + 9 = −26 −3 − 7 = 13
Answers: 2
Asample of 114 mortgages approved during the current year showed that 36 were issued to a single-ear...
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