1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
gulaghasi [49]
3 years ago
7

mags wants to know what the hottest hairstyle Trend in is in our town what is the best group to survey of to find this informati

on

Mathematics
2 answers:
Butoxors [25]3 years ago
6 0

Answer:

The last option,

"Get a list of all the salons in her town and use a deck of cards to pick five of them to visit.  Survey all the hairstylists that work at each salon."

Step-by-step explanation:

When choosing a survey, we want to ensure not only that the survey is time-effective and cost-effective, but that it is representative of the entire population.

Just choosing the salons close to her house would not necessarily be a good representation of the entire town.

Choosing salons that celebrities go to creates bias in the survey as well, as does choosing only the salons she and her friends go to.

However, finding a list of all salons and using a deck of cards to represent it creates a random sample; this helps to eliminate bias and ensure the sample is representative.

kondor19780726 [428]3 years ago
6 0
You should choose the last option because it is the most random at choosing salons to ask and so will give the least biased answer.
You might be interested in
Lily drove 354 miles in 6 hours. On average, how fast did she drive in hours per mile?
vagabundo [1.1K]

Answer: \dfrac{1}{59}\ \text{hours per mile}

Step-by-step explanation:

Given : Distance traveled by Lily= 354 miles

Time= 6 hours

Then,

\text{LIly's rate in hours per mile}=\dfrac{6\text{ hours}}{354\text{ mile}}\\\\=\dfrac{1}{59}\ \text{hours per mile}

Hence, the required speed of Lily = \dfrac{1}{59}\ \text{hours per mile}

3 0
3 years ago
A family went out to eat. Below is the number of corn dogs that each of the four people ate. <br>​
katrin [286]

Answer:

What are you asking? I know the number of corn dogs but what are we suposed to figure out?

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
3. Explain the relationship between area and square units
deff fn [24]

Answer:

In geometry, the area of a two dimensional object is the amount of space an area takes up. A square unit is a square with sides of length one unit.

5 0
2 years ago
-2|x+5|-7=3 solve for x add steps
DIA [1.3K]
No solution since there are no values of x that make the equation true.
8 0
3 years ago
Read 2 more answers
A cereal manufacturer is concerned that the boxes of cereal not be under filled or overfilled. Each box of cereal is supposed to
Vaselesa [24]

Answer:

We conclude that the population average weight of a cereal box is equal to 13 ounces.

Step-by-step explanation:

We are given that a cereal manufacturer is concerned that the boxes of cereal not be under filled or overfilled.

A random sample of 36 boxes is tested. The sample average weight is 12.85 ounces and the sample standard deviation is 0.75 ounces.

<u><em /></u>

<u><em>Let </em></u>\mu<u><em> = population average weight of a cereal box</em></u>

So, Null Hypothesis, H_0 : \mu = 13 ounces    {means that the population average weight of a cereal box is equal to 13 ounces}

Alternate Hypothesis, H_A : \mu \neq 13 ounces    {means that the population average weight of a cereal box differs from 13 ounces}

The test statistics that will be used here is <u>One-sample t test statistics</u> as we don't know about population standard deviation;

                                  T.S.  = \frac{\bar X-\mu}{\frac{s}{\sqrt{n} } }  ~ t_n_-_1

where, \bar X = sample average weight = 12.85 ounces

            \sigma = sample standard deviation = 0.75 ounces

            n = sample of boxes = 36

So, <u><em>test statistics</em></u>  =  \frac{12.85-13}{\frac{0.75}{\sqrt{36} } }  ~ t_3_5

                               =  -1.20

The value of the test statistics is -1.20.

Since, in the question we are not given with the level of significance so we assume it to be 5%. Now at 5% significance level, <u>the t table gives critical values between -2.03 and 2.03 at 35 degree of freedom for two-tailed test</u>.

Since our test statistics lies within the range of critical values of t, so we have insufficient evidence to reject our null hypothesis as it will not fall in the rejection region due to which <u>we fail to reject our null hypothesis</u>.

Therefore, we conclude that the population average weight of a cereal box is equal to 13 ounces.

3 0
3 years ago
Other questions:
  • What was Jason’s error?
    9·2 answers
  • ......................
    5·1 answer
  • In a circle , find the length of a 90 arc if an inscribed regular hexagon has a side of length 12 cm. Give only the number (no u
    8·1 answer
  • The radius of the sphere is 10 units .what is the approximate volume of the sphere use π=3.14​
    15·1 answer
  • Rounded to the nearest whole number, what is the approximate volume of the cage? Use π = 3.14.
    13·1 answer
  • Someone Help Me Plzzzz?!?
    9·1 answer
  • I need help getting my grades up, any help would be very appreciated
    5·2 answers
  • Suppose that an individual has a body fat percentage of 14.5% and weighs 171 pounds. How many pounds of his weight is made up of
    5·1 answer
  • Help!! 10 pts and brainliest!
    12·1 answer
  • What is the value of 11g - 9k + 3 when g = 9 and k = 11?<br> Neatly show your work.
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!