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anygoal [31]
3 years ago
6

Raj polled 100 students in his class to compare the number of hours that teen boys and girls played video games each week. The r

esults of his survey are shown below. Which statement about his data sets is true?
A-The average boy plays 8.5 hours more per week than the average girl.
B-The average boy plays 2 hours more per week than the average girl.
C-The average boy plays the same amount of time per week as the average girl.
D-The average boy plays 6 hours more per week than the average girl.
Mathematics
2 answers:
netineya [11]3 years ago
8 0
I think the answer would be C
antoniya [11.8K]3 years ago
7 0

Answer:

a

Step-by-step explanation:

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Which of the following is the mid point of the line segment with endpoints -3 and 2 (a)5/2 (b) 1 (c) -1/2 (d) -1 (e)-5/2
scoray [572]

Answer:

2,5 b 1 c 0,5 d -1 e 2,5

Step-by-step explanation:

3 0
3 years ago
A university administrator was interested in determining if there was a difference in the distance students travel to get from c
eduard

Answer:

1) Fail to reject the Null hypothesis

2) We do not have sufficient evidence to support the claim that the mean distance students traveled to school from their current residence was different for males and females.

Step-by-step explanation:

A university administrator wants to test if there is a difference between the distance men and women travel to class from their current residence. So, the hypothesis would be:

H_{o}: \mu_{F}-\mu_{M}=0\\\\ H_{a}: \mu_{F}-\mu_{M}\neq 0

The results of his tests are:

t-value = -1.05

p-value = 0.305

Degrees of freedom = df = 21

Based on this data we need to draw a conclusion about test. The significance level is not given, but the normally used levels of significance are 0.001, 0.005, 0.01 and 0.05

The rule of the thumb is:

  • If p-value is equal to or less than the significance level, then we reject the null hypothesis
  • If p-value is greater than the significance level, we fail to reject the null hypothesis.

No matter which significance level is used from the above mentioned significance levels, p-value will always be larger than it. Therefore, we fail to reject the null hypothesis.

Conclusion:

We do not have sufficient evidence to support the claim that the mean distance students traveled to school from their current residence was different for males and females.

7 0
3 years ago
A population, P, of birds is doubling in size each year, according to the model P = 100(2t), where t reperesents years. What was
mina [271]
The initial population size was 200
5 0
2 years ago
Read 2 more answers
1
EleoNora [17]

Answer:

ummmmmm peace out

Step-by-step explanation:

8 0
3 years ago
2. A supermarket display consists of boxes of cereal. The bottom row has 27 boxes. Each row has four fewer boxes than the row be
tresset_1 [31]

Answer:

Step-by-step explanation:

) Nth term = F + (N - 1) x D, where F=First term, N=Number of terms, D=Common difference

6th row = 23 + (6 - 1) x -3

            = 23 + (5) x -3

            = 23 + (-15)

            = 8 - number of boxes in the top row.

 

b) Sum = N/2[2F + (N - 1) x D]

            = 6/2[2*23 + (6 - 1) x -3]

             = 3  [46  +    (5) x -3 ]

             = 3  [46  +      -15 ]

             = 3  [ 31 ]

             = 93 - total number of boxes in the entire display.

4 0
3 years ago
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