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Reil [10]
3 years ago
15

A credit card company wants to test the hypothesis that its account holders spend an average of $100 per month at gasoline stati

ons. They take a sample of 1000 accounts and find an average spend of $115 with a standard deviation of $41. Conduct this hypothesis test with a .01 level of significance. What is the test statistic? Answer to two decimal places. Hint: this is a two-tail test.
Mathematics
1 answer:
Musya8 [376]3 years ago
6 0

Answer: I hate this app

Step-by-step explanation:

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10. Find the theoretical probability of rolling a number less than 4 on a standard number cube
snow_lady [41]
<h3>Answer:  1/2</h3>

Explanation:

Here's the event space

E = {1,2,3}

this represents all of the desired events we want, which is rolling less than a 4 on a standard number cube (aka a die). There are A = 3 items in this set.

The sample space is the set of all possible outcomes, namely,

S = {1,2,3,4,5,6}

which is all of the values on the die. There are B = 6 items in this set.

Divide the values of A and B to get the theoretical probability:

P(rolling a number less than 4) = A/B = 3/6 = 1/2

6 0
3 years ago
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Anyone know what to say for that question
Alex Ar [27]

Answer:

It's an equilateral triangle.

My justification..... it looks like it

8 0
3 years ago
Write the number that comes next in the sequence 4,728 4,818 4,908 please help!!! helpp
Vesnalui [34]

Answer:

4,998

because you add 90 every time that is the difference

3 0
3 years ago
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I really need help with this question
lilavasa [31]

Answer:

  a) 625; 625; right triangle

  b) 205; 256; obtuse triangle

Step-by-step explanation:

The squares are values found in your memory or using a calculator. It is straightforward addition to find their sum.

<h3>left side</h3>

7² +24² = 49 +576 = 625

25² = 625

The sum of the squares of the short sides is the square of the long side, so this is a right triangle.

__

<h3>right side</h3>

6² +13² = 36 +169 = 205

16² = 256

The long side is longer than is needed to form a right triangle, so the largest angle is more than 90°. This is an <em>obtuse triangle</em> (as shown).

5 0
2 years ago
How do you work out 15% of 80000
S_A_V [24]
Multiply 0.15 and 80,000. Your answer is 12,000
5 0
3 years ago
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