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IceJOKER [234]
3 years ago
15

The business college computing center wants to determine the proportion of business students who have laptop computers. If the p

roportion differs from 25%, then the lab will modify a proposed enlargement of its facilities. Suppose a hypothesis test is conducted and the test statistic is 2.4. Find the p-value for a two-tailed test of hypothesis.
Mathematics
1 answer:
disa [49]3 years ago
8 0

Answer:

The p-value for a two-tailed test of hypothesis is 0.0164.

Step-by-step explanation:

The test statistic is 2.4. Find the p-value for a two-tailed test of hypothesis.

This means that we look at the z-table, and we have to find:

P(|Z| > 2.4)

Which is the pvalue of Z = -2.4 multiplied by 2, or 2 multiplied by 1 subtracted by the pvalue of Z = 2.4.

Looking at the z-table, z = 2.4 has a pvalue of 0.9918

1 - 0.9918 = 0.0082

2*0.0082 = 0.0164

The p-value for a two-tailed test of hypothesis is 0.0164.

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A mechanic charged $220.28 to repair a car. The price included charges for 3 hours of labor and $126.53 for parts. How much does
Assoli18 [71]

Answer:

$31.25

Step-by-step explanation:

Let's set up an equation.

$220. 28 - total

$126.53 - cost for parts

3 - # of hours

? - price per hour

3h + $126.53 = $220.28

Subtract $126.53 from both sides.

3h = $93.75

Divide by 3.

h = $31.25

The mechanic charges $31.25 per hour for labor.

Hope that helps.

6 0
3 years ago
How to do composition of functions​
KengaRu [80]
<h2><u><em>If you rather have the link to get this info lmk!!</em></u></h2>

Example: f(x) = 2x+3 and g(x) = x2

"x" is just a placeholder. To avoid confusion let's just call it "input":

f(input) = 2(input)+3

g(input) = (input)2

Let's start:

(g º f)(x) = g(f(x))

First we apply f, then apply g to that result:

Function Composition - (g º f)(x) = (2x+3)2

What if we reverse the order of f and g?

(f º g)(x) = f(g(x))

First we apply g, then apply f to that result:

Function Composition - (f º g)(x) = 2x2+3

We get a different result!  When we reverse the order the result is rarely the same.  So be careful which function comes first.

<h2 />
5 0
3 years ago
Given: If X, then Y. If Y, then Z. Y is true. So:
8_murik_8 [283]

Answer:

The answer is "X is unknown, Z is true".

Step-by-step explanation:

In the given question option is missing so, the correct answer to this question can be defined as follows:

  • In this question if X is given, then y means depends upon X.
  • If y is given, then z depends on y, that's why in this question  Y and Z are true. but X is unknown.  
7 0
3 years ago
Use compatible numbers to estimate the quotient 358/3
sweet-ann [11.9K]

Compatible numbers are known as numbers that are the closest value to the actual numbers- this makes mental arithmetic to be performed better. The quotient of 358/3 is equal to 119.333 therefore the compatible number of the quotient of 358/3 is 119.

6 0
3 years ago
Use the distributive property to fill in the blanks below.<br> 2 x (8 - 7) = x 8) - (x7)
Anna35 [415]

Answer:

kidd get a job

Step-by-step explanation:

lol jp its 5lloolo

3 0
3 years ago
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