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3 years ago

13

Just the answer please

1 answer:

Sliva [168]3 years ago

3 0

<span><span>48<span>f2</span></span>−<span>110f</span></span>+<span>63 is the answer! :)</span>

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Sales at a fast-food restaurant average $6,000 per day. The restaurant decided to introduce an advertising campaign to increase

Akimi4 [234]

Answer:

The value of the test statistic is 2.8.

Step-by-step explanation:

The test statistic is:

$z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}$

In which X is the sample mean, $\mu$ is the value expected value for the population mean, $\sigma$ is the standard deviation and n is the size of the sample.

Sales at a fast-food restaurant average $6,000 per day

This means that $\mu = 6000$

Sample of 49

This means that $n = 49$

The sample showed average daily sales of $6,400.

This means that $X = 6400$

Population standard deviation is about $1,000.

This means that $\sigma = 1000$

The value of the test statistic is

$z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}$

$z = \frac{6400 - 6000}{\frac{1000}{\sqrt{49}}}$

$z = 2.8$

The value of the test statistic is 2.8.

7 0

3 years ago

30 points and brainly if answered correctly

BartSMP [9]

Answer:

21

Step-by-step explanation:

6 0

3 years ago

Ben is making a dessert that requires 2 1/2 lb of strawberries and 1 1/2 lb of blueberries. Strawberries cost $1 less per pound

Sladkaya [172]

2 dollars a pound for strawberries 3 dollars a pound for blueberries

6 0

3 years ago

Read 2 more answers

Evaluate the expression and put your answer in fraction form.

dolphi86 [110]

Answer:

$46\frac{2}{3}$

Step-by-step explanation:

Simplify inside the parentheses:

$(\frac{1}{3}+9)$ this one first

This can be simplified simply by adding the whole number to join as a mixed fraction:

$9\frac{1}{3}$

Simplify the mixed fraction by using the rule: $a\frac{b}{c}=\frac{ac+b}{c}$

$9\frac{1}{3}=\frac{9*3+1}{3}\\\\\frac{28}{3}$

Keep this $(\frac{28}{3})$

$(8-3)$

Simplify

$(5)$

Put together:

$(\frac{28}{3})*(5)$

Simplify parentheses

$\frac{28}{3}*5$

Simplify

$\frac{28}{3} *\frac{5}{1}\\ \\\frac{28*5}{3} \\\\\frac{140}{3}$

Convert to mixed fraction:

$46\frac{2}{3}$

Done.

8 0

3 years ago

Read 2 more answers

Let s(t) be the position function of a body moving along a coordinate line; s(t) is measured in feet and t in seconds, where t ≥

Murrr4er [49]

S (0) = (15*0)/(0 + 5) = 0/5 = 0

6 0

3 years ago