Mathematics: You and a friend went to Glory Days for dinner. You ordered a cheeseburger for $8.50 and a soda for $1.99. Your friend convinced you to share and split the cost of onion rings that cost $7.00. How much did you spend on your dinner?

You and a friend went to Glory Days for dinner. You

jady20krazy

18.03.2022

$13.99

Step-by-step explanation:

Both you and your friend are 2 people so we will divide the total by 2.

Our total would be $7, so,

7 ÷ 2 = 3.5 = $3.50

$8.50 + $ 1.99 + $3.50 = $13.99

You would spend a total of $13.99 on the dinner.

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Ddom

11.01.2020

Using the hypothesis test for one sample mean, There is NO SIGNIFICANT EVIDENCE to support the typist's claim

$H_{0} = 45\\H_{1} < 45\\\\$

The test statistic :

T = (x - μ) ÷ (s/√(n))

T = (43 - 45) ÷ (15/√70)

T = - 2 ÷ 1.7928429

T = -1.12

At α = 0.05

Pvalue :

Degree of freedom, df = 70 - 1 = 69

Pvalue = 0.1333

Decision region :

Reject $H_{0}$ if Pvalue < α

0.1333 > 0.05

Since Pvalue > α We fail to reject the Null

Learn more on hypothesis testing:

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