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vredina [299]
3 years ago
14

The price of a baseball ticket at Yankee Stadium increased by 2 1∕4 over the last three years. If the original price of a ticket

was $60, what is the price of the ticket today?
Mathematics
2 answers:
Gelneren [198K]3 years ago
4 0

Answer:

$135.00

Step-by-step explanation:

The original price of a baseball ticket at Yankee Stadium = $60.00

The price is increased by 2\frac{1}{4} over the last three years.

Let the price of the ticket of today be x

x = 2\frac{1}{4} × 60.00

x = \frac{9}{4} × 60.00

x = \frac{540}{4}

x = $135.00

The new price of the ticket is $135.00

sleet_krkn [62]3 years ago
3 0
1 unit = $60

2 1/4 units
= $60 × 2 1/4
= $135
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Answer:

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The company's claim is correct.

The true mean gas mileage of the new cars is 35 mpg.

Step-by-step explanation:

The consumer group can perform a test for single mean to determine whether the is less than 35 mpg or not.

The hypothesis can be defined as follows:

<em>H₀</em>: The true mean gas mileage of the new cars is 35 mpg, i.e. <em>μ</em> = 35 mpg.

<em>Hₐ</em>: The true mean gas mileage of the new cars is less than 35 mpg, i.e. <em>μ</em> < 35 mpg.

The information provided is:

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As there is no information abut the population standard deviation then we would have to compute the sample standard deviation to estimate the value of <em>σ</em>.

Since the sample standard deviation will be used, a <em>t</em> test statistic would have to be computed.

The test statistic is given by:

t=\frac{\bar x-\mu}{s/\sqrt{n}}

Assumptions for one sample <em>t</em>-test are:

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The significance level of the test is, <em>α</em> = 0.05.

The <em>p</em>-value of the test is 0.324.

The decision rule based on <em>p</em>-value is that the null hypothesis will be rejected if the <em>p</em>-value is less than the level of significance and vice-versa.

The <em>p</em>-value = 0.324 > <em>α</em> = 0.05.

As the <em>p</em>-value is more than the significance level the null hypothesis will not be rejected.

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