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stich3 [128]
2 years ago
15

The marketing manager for an automobile manufacturer is interested in determining the proportion of new compact-car owners who w

ould have purchased a GPS navigation system if it had been available for an additional cost of $300. The manager believes from previous information that the proportion is 0.30. Suppose that a survey of 200 new compact-car owners is selected and 79 indicate that they would have purchased the GPS navigation system. If you were to conduct a test to determine whether there is evidence that the proportion is different from 0.30, which test would you use
Mathematics
1 answer:
pshichka [43]2 years ago
4 0

Answer:

Two-tailed test.

Step-by-step explanation:

There are two types of tests:

One-tailed tests and two-tailed tests.

When we only test if the mean is less or more than a value, we have a one-tailed test.

When we test if the mean is different from a value, we have a two-tailed test.

If you were to conduct a test to determine whether there is evidence that the proportion is different from 0.30, which test would you use?

Test if it is different, so a two-tailed test.

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Step-by-step explanation:

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57

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A student’s score on an exam is an integer between 0 and 100. A score of 90 to 100 is an A, 80 to 89 is a B, 70 to 79 is a C, 60
elixir [45]

Answer:

A. 0.22

B. 0.18

C. 0.25

D. 0.244

Step-by-step explanation:

S = {51 to 100} = 50

The sample space S contains values from 51 to 100 which is a total of 50 different values.

A.

Probability of A (lies between the values of 90 to 100 = 11).

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B.

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C.

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P(student did not get C) = 1-0.20 = 0.80

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D.

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2 years ago
This is for the last post
Mazyrski [523]

Answer:

Well for Part A-

List the temperatures from least to greatest; anything under 0 degrees is the lowest.

-6.1

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3.4

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