Suppose that, in 2010, 13.4% of all cars purchased nationwide were gray. The owner of several local car dealerships wants to compare this proportion to the current proportion of customers who purchase gray cars. To test this, she selects a random sample of 220 recent purchases and finds that 31 people, or 14.1%, purchased gray cars. She plans to use this information in a one-sample z ‑test for a proportion to determine whether the proportion of customers who purchase gray cars has changed since 2010. Choose the appropriate null (H0) and alternative (H1) hypotheses for such a test.

u rich

step-by-step explanation:

answer: 42

use a calculator to find that 845/73 = 11.575

the whole part of the answer is 11. multiply this by 73 to get 11*73 = 803.

subtract that result from 845 to get 845 - 803 = 42

part a

x     y

0     8

1     7.5

2     7

3     6.5

4     6

5     5.5  

for every hour i deducted .5 inches from the length of the candle

part b

it is a function because for every x value there is only one y value

part   c

for every x value there is only one y value

x       y

0       8

1       7.6

2       7.2

3       6.8

step-by-step explanation:

ion

step-by-step explanation:

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