Ask question

Ask question

All categories

3 years ago

5

In six test runs, a truck operated 8, 10, 15, 7, 9, and 11 miles with one gallon of gasoline. at the 95% level of confidence, is

this sufficient evidence to show that the truck is operating at a mean rate of about 13.1 miles per gallon (confidence interval)

1 answer:

nikdorinn [45]3 years ago

6 0

The mean average of all the test runs are 10 miles. Thus, a mean rate of 10 miles per gallon would be more accurate.

You might be interested in

9,032,504.75 in word form

vodka [1.7K]

Nine million thirty-two thousand five hundred four and seventy-five hundredths

6 0

3 years ago

Read 2 more answers

Roy, Joseph, and Caitlyn have 3 3/4 pints of frozen yogurt. If they each eat the same amount of frozen yogurt, how many pints wi

QveST [7]

Answer:

1 1/4 or 1.25

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

The diagram shows the number of dollars each child has in a family. How can you redistribute the money so that each child has th

mash [69]

Answer:

2,4,5

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

The meaning of a positional argument is determined by:

Zanzabum

An argument is a variable, value or object passed to a function or method as input. Positional arguments are arguments that need to be included in the proper position or order

5 0

2 years ago

Use the quadratic formula to solve x2 + 2x - 120 = 0. Think about what other method could also be used to solve this equation. a

pshichka [43]

Answer:

x = 10 , -12

Step-by-step explanation:

Solution:-

- The given quadratic equation is to be solved using the quadratic formula. The general form of a quadratic equation is:

$ax^2 + bx + c =0$

Where, [ a , b and c are constants ]

- The quadratic formula is given as:

$x = \frac{-b+/-\sqrt{b^2 - 4*a*c} }{2a}$

- The given equation is:

$x^2 + 2x - 120 = 0$

Where, a = 1 , b = 2 , c = -120

- Solve using quadratic formula:

$x = \frac{-2+/-\sqrt{2^2 - 4*1*(-120)} }{2*1}\\\\x = \frac{-2+/-\sqrt{4 + 480} }{2}\\\\x = \frac{-2+/-(22) }{2}\\\\\\x = 10 , -12$

7 0

3 years ago