Question

An automobile association reported in 2010 that 39​% of people in a certain region surveyed had admitted to driving impaired at least once in the past year. Suppose you are to survey randomly chosen people from this region to determine whether the proportion who have driven impaired at least once in the past year has changed from 2010.
a. Give the null and alternative hypotheses to test whether the proportion of people from this region who have driven while impaired at least once in the past year has changed from 2010.
b. The statistical hypothesis in part a is a​ _________ (right-tailed,​ left-tailed, or​ two-tailed) test.
a. Write the hypotheses in symbols.
Upper H 0​:
▼
ModifyingAbove p with caret
p 0
p
▼
less than
equals
not equals
greater than
nothing
Upper H Subscript Upper A​:
▼
p 0
p
ModifyingAbove p with caret
▼
not equals
equals
less than
greater than
nothing
​(Type integers or decimals. Do not​ round.)
b. The statistical hypothesis in part a is a
▼
left dash tailed
right dash tailed
two dash tailed
test.

Answer 1

G: ver Pe39/ pheber the proporho caho have driveo iopai red atleast oice to tha posh yeau 20 10 hefe l h We have to ted- has chagged ro P 39/ hyptbesis is a The null The alteroadive hypetbesis is Ha P 39/ tuoo-tailed The bes