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Effectus [21]
3 years ago
15

A sociologist recorded the number of contacts entered in a cell phone and the number of texts sent in a week for 20 cell phone u

sers. The resulting data were used to conduct a hypothesis test to investigate whether there is a linear relationship between the number of contacts and the number of texts sent. What are the correct hypotheses for the test?
a. H0:β1=0 Ha:β1≠0

b. H0:β1=0 Ha:β1>0

c. H0:β1=0 Ha:β1<0

d. H0:β1≠0 Ha:β1=0

e. H0:b1=0 Ha:b1≠0
Mathematics
1 answer:
barxatty [35]3 years ago
6 0

Answer:

A

Step-by-step explanation:

B1 represents the slope of the population regression line so A is the answer

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erik [133]

Answer:

Use linear equation to calculate intercepts.

x minus one-half y = negative 4

Complete the table with values for a and b.

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a =  

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Step-by-step explanation:

those are ur correct answers

8 0
3 years ago
State if the two triangles are congruent. If they are, state the triangle congruence theorem that proves it
dexar [7]

Answer:

Not congruent

Step-by-step explanation:

The sides that are equal in length are not in the same place if you align the triangles.

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3 years ago
If f(–5) = 0, what are all the factors of the function f (x ) = x cubed minus 19 x + 30? Use the Remainder Theorem.
oksian1 [2.3K]
(x + 5) (x - 2) (x - 3)

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3 years ago
The transportation department is resurfacing 12.75 miles of roadways in Narvarro Country. The crew completes work on a 1/8-mile
steposvetlana [31]

Answer:

102 hours

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= 51/4 / 1/8

= 51 * 8 / 4

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= 102 hours


3 0
4 years ago
Pls help!! i will give brainliest answer to the first right answer
Veronika [31]

Answer:

1600%

Step-by-step explanation:

Area = Side *Side

40%side * 40%side =1600% Area

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3 years ago
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