Previously, 5% of mothers smoked more than 21 cigarettes during their pregnancy. An obstetrician believes that the percentage of mothers who smoke 21 cigarettes or more is less than 5% today. She randomly selects 115 pregnant mothers and finds that 2 of them smoked 21 or more cigarettes during pregnancy. Test the researcher's statement at the x = 0.05 level of significance. What are the null and alternative hypotheses? Ho: = Р 0.05 versus H₁: p (Type integers or decimals. Do not round.) < 0.05 ... Because npo (1-Po) = 5.5 <10, the normal model may not be used to approximate the P-value. (Round to one decimal place as needed.).

Q: Evaluate the intcgral 7)dr= 21

A:

Q: Suppose A = (-8,7) and AB = (4, –3). Then B = help (points)

A: Find the vector if the direction of AB. Is given

Q: csc y

A: In a right angle triangle,It is given base side=x,hypotenuse=1one angle=y°So,opposite side of the…

Q: yA y = VE

A:

Q: Multiply. -0.6(-47) = 00*(-1.828) =

A: Assume A=-0.6(-47)

Q: Find the vaue of X 27 13 2501 16

A:

Q: Answer g

A:

Q: Find X

A: In a triangle, tanθ=PB

Q: S%3D

A:

Q: 1 2e10 - 3 da e5z

A:

Q: 115 84 y

A:

Q: 4 Find x. 25

A: Given a circle with two chords intersecting each other. When two chords intersect each other inside…

Q: Find x. 2х- 8 X - 3 3 3 6 4

A: Please see the explanation below

Q: k-2=10

A: Given equation is k-2=10 We have to find the value of k. Add both sides 2 and further simplify it…

Q: 3 15 X

A: Use the similar triangle formula