Given the altered polio data presented below: Treatment
Total Patients
# with Polio
Vaccine
4,000
44
Placebo
4,000
73
If you’re trying to prove that the vaccine is effective (lower incidence of polio with the vaccine like the class discussion), what’s your test statistic and your conclusion at the 1% level of significance?
a. T test = -2.364 and fail to reject the null
b. F test = 0.553 and fail to reject the null
c. Z test = -2.364 and reject the null
d. T test = 2.364 and fail to reject the null
e. Z test = -2.701 and reject the null

he spend 5.1 minutes chatting with his friends

step-by-step explanation:

2/5+1/2=9/10

6/1-9/10=5 1/10

first anwser choice.

step-by-step explanation:

the greater/less or equal to symbol (> or < with the line at the bottom) is a closed/filled in circle.

-5c + 2 _< _27

subtract from both sides by 2

-5c _< _ 27

divide both sides by -5

c _< _ 5.4

flip the inequality sign

c _> _5.4

the only possible answer that would match the simplified inequality is the first answer choice

$3720

step-by-step explanation:

taxable income = $31000

as per the 2018-2019 us tax bracket, the tax rate is 12% for an individual whose taxable income is between $9,526 to $38,700.

so, the tax to be paid by him = 12% of 31000

= 0.12 * 31000     [12% converted to decimal as 0.12]

= $3720

60.9774

step-by-step explanation:

because when you add 47.6 plus 7.32 equals 54.92

and when you add .0574 + 6= 6.0574

and when you add 54.92 and 6.0574 you get the answer of 60.9774.

plzz mark brainlest last one got deleted. cause i didn't explain it but i did but i understand what the mod meant