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Tems11 [23]
4 years ago
14

he Boston public school district has had difficulty maintaining on-time bus service for its students. Suppose the district devel

ops a new bus schedule to help combat chronic lateness on a particularly woeful route. Historically, the bus service on the route has been, on average, 10 minutes late. After the schedule adjustment, the first 36 runs were an average of eight minutes late. As a result, the Boston public school district claimed that the schedule adjustment was an improvement using a two tailed test—students were not as late. Assume a population standard deviation for bus arrival time of 10 minutes. The test statistic is 1.20 based on this and an alpha of .05 which of the following statements is not correct?
Mathematics
1 answer:
Sergeu [11.5K]4 years ago
4 0

Answer:

Fail to reject the null hypothesis.

Step-by-step explanation:

The hypothesis test is conducted for Boston public school. They have used z-value table and the value of test statistics is 1.20. AT the significance level of 0.05, the null hypothesis is accepted. We cannot reject the null hypothesis. The p-value is greater than alpha so there is no evidence to support the claim of Boston Public School.

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The table below shows the fifth powers of different numbers:
leonid [27]
1. The answer would be true
<span>Part A: Does the table represent y as a function of x? Justify your answer.

The function of x is "</span><span>fifth powers of x" which can be write as 
</span>f(x)= x^5
To determine whether the y represent f(x), you can try to put a value of x into the function, then compare the value of f(x) with y.
For x=1 and y=1
f(x)= x^5
f(1)= 1^5
f(1)= 1 = y

For x=2 and y=32
f(x)= x^5
f(2)= 2^5
f(2)= 32 = y

2. 
<span>What is the value of f(4) and what does f(4) represent?
The f(4) means putting 4 as the x value. In the function, the f(x) represent price </span>for renting a bowling lane and the variable x represent the number of hours. Then f(4) represent the price for renting a bowling lane for 4 hours.
The value would be:
<span>f(x) = 2x + 12
</span><span>f(4) = 2(4) + 12
f(4)= 8+12= $20</span>
3 0
3 years ago
On a coordinate plane, what are the center and radius of the circle represented by
DIA [1.3K]

The answer is D.

Center is (-3, 5) and Radium is 5

7 0
3 years ago
Which of the following cannot be used to express the number 8? eight more than zero +8 eight below zero positive eight
MrRa [10]

Eight below zero would express the value -8, negative eight,

but not 8.

7 0
3 years ago
Read 2 more answers
A salad dressing recipe includes 4/5 cup of lime jucie for every two cups of greek yogurgt
amid [387]
And where is the rest of question?
5 0
3 years ago
For the function f(x) = x^2+ 3, what are the outputs for the inputs -3, 2, 0, and 5?
AysviL [449]

Answer:

F(-3)=12

F(2)=7

F(0)=3

F(5)=28

Step-by-step explanation:

8 0
4 years ago
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