2. A teacher wants to determine whether the mean reading speed of certain students is
more than 600 words per minute. He took a random sample of seven of the students
who read, respectively, 604, 615, 620, 603, 600, 560, and 610 words in one minute.
[2*3= 6 pts]
a. State null and alternative hypothesis.
b. Are these data good evidence that the average speed of certain students is more
than 600 words per minute? Use the a = 0.05.

step-by-step explanation:

de-gf

hj=3x+20

ji=15x-64

these sign is used to tell weather the number is greater or less than the number   <   or >     but this sign means its equal =    

hope this you and

step-by-step explanation:

answer: idk

step-by-step explanation:

δabc ≅ δdcb by sas because

db ≅ ac . . given (side)

bc ≅ bc . . reflexive property (side)

∠dbc ≅ ∠ acb . . alternate interior angles where transversal bc crosses parallel lines bd and ac (included angle)