Ask question

Ask question

All categories

Artyom0805 [142]

3 years ago

7

Deb's Cafe offers two kinds of espresso: single-shot and double-shot. Yesterday afternoon, the cafe sold 2 single-shot espressos

and 6 double-shot espressos. What percentage of the espressos sold were single-shot?

1 answer:

maks197457 [2]3 years ago

4 0

Answer:

오늘하루도 트친해요수고하셨습니다 ㅊ풔ㅓㅎ나지금너무배고파죽겠는데난지금바로응모하세요!

You might be interested in

Two competing headache remedies claim to give fast-acting relief. An experiment was performed to compare the mean lengths of tim

DaniilM [7]

Answer:

$t = 0.875$

Step-by-step explanation:

Given

<u>Brand A</u> <u>Brand B</u>

$n_ 1= 12$ $n_2 = 12$

$\bar x_1 = 21.8$ $\bar x_2 = 18.9$

$\sigma_1 = 8.7$ $\sigma_2 = 7.5$

Required

Determine the test statistic (t)

This is calculated as:

$t = \frac{\bar x_1 - \bar x_2}{s\sqrt{\frac{1}{n_1} + \frac{1}{n_2}}}$

Calculate s using:

$s = \sqrt{\frac{(n_1-1)*\sigma_1^2+(n_2-1)*\sigma_2^2}{n_1+n_2-2}}$

The equation becomes:

$s = \sqrt{\frac{(12-1)*8.7^2+(12-1)*7.5^2}{12+12-2}}$

$s = \sqrt{\frac{1451.34}{22}}$

$s = \sqrt{65.97}$

$s = 8.12$

So:

$t = \frac{\bar x_1 - \bar x_2}{s\sqrt{\frac{1}{n_1} + \frac{1}{n_2}}}$

$t = \frac{21.8 - 18.9}{8.12 * \sqrt{\frac{1}{12} + \frac{1}{12}}}$

$t = \frac{21.8 - 18.9}{8.12 * \sqrt{\frac{1}{6}}}$

$t = \frac{21.8 - 18.9}{8.12 * 0.408}}$

$t = \frac{2.9}{3.31296}}$

$t = 0.875$

3 0

3 years ago

Given: m<4 + m<7 = 180°<br> Prove: c ll d<br> I need the statements and reasons

AVprozaik [17]

The horses name was friday

6 0

2 years ago

Read 2 more answers

HELP PLEASE!!!!!!!!!!!!!!!!!

GalinKa [24]

Answer:

a

Step-by-step explanation:

on x line it = 3 and there is no slope/no steep hill yk

7 0

3 years ago

Read 2 more answers

It costs $12 to get into the San Diego County Fair and $1.50 per ride.

yan [13]

Answer:

8

Step-by-step explanation:

(24-12)/1.50=8

8 0

3 years ago

What is the importance of geometry in our daily life?

kaheart [24]

Geometry is everywhere. Angles, shapes, lines, line segments, curves,<span> and other aspects of geometry are every single place you look. Letters themselves are constructed of lines, line segments, and curves.</span>

6 0

3 years ago