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
exis [7]
3 years ago
15

Which is the function represented by the table

Mathematics
1 answer:
mestny [16]3 years ago
8 0

Answer:

the first function is correct

You might be interested in
What is the value of f(−3)?
Daniel [21]
Is that the whole question ?
7 0
3 years ago
The following data comparing wait times at two rides at Disney are listed below: Position Pirates Splash Mountain Sample Size 32
myrzilka [38]

Answer:

a) (14.68 -18.77) - 2.39 \sqrt{\frac{11.87^2}{32}+\frac{16.79^2}{30}} =-12.968

(14.68 -18.77) + 2.39 \sqrt{\frac{11.87^2}{32}+\frac{16.79^2}{30}} =4.788

b) t=\frac{14.68-18.77}{\sqrt{\frac{11.87^2}{32}+\frac{16.79^2}{30}}}}=-1.10  

Step-by-step explanation:

Data given and notation

\bar X_{A}=14.68 represent the mean for Pirates

\bar X_{B}=18.77 represent the mean for Splash Mountain

s_{A}=11.87 represent the sample standard deviation for the sample Pirates

s_{B}=16.79 represent the sample standard deviation for the sample Slpash Mountain

n_{A}=32 sample size selected for Pirates

n_{B}=30 sample size selected for Splash Mountain

\alpha=0.02 represent the significance level for the hypothesis test.

t would represent the statistic (variable of interest)

p_v represent the p value for the test (variable of interest)

Part a

The confidence interval would be given by:

(\bar X_A -\bar X_B) \pm t_{\alpha/2} \sqrt{\frac{s^2_{A}}{n_{A}}+\frac{s^2_{B}}{n_{B}}}

The degrees of freedom are given by:

df = n_A +n_B -2 = 32+30-2 = 60

Since we want 98% of confidence the significance level is \alpha =1-0.98 =0.02 and \alpha/2 =0.01, we can find in the t distribution with df =60 a critical value that accumulates 0.01 of the area on each tail and we got:

t_{\alpha/2}= 2.39

And replacing we got for the confidence interval:

(14.68 -18.77) - 2.39 \sqrt{\frac{11.87^2}{32}+\frac{16.79^2}{30}} =-12.968

(14.68 -18.77) + 2.39 \sqrt{\frac{11.87^2}{32}+\frac{16.79^2}{30}} =4.788

Part b

State the null and alternative hypotheses.

We need to conduct a hypothesis in order to check if the means are equal, the system of hypothesis would be:

Null hypothesis:\mu_{A} = \mu_{B}

Alternative hypothesis:\mu_{A} \neq \mu_{B}

the statistic is given by:

t=\frac{\bar X_{A}-\bar X_{B}}{\sqrt{\frac{s^2_{A}}{n_{A}}+\frac{s^2_{B}}{n_{B}}}} (1)

t-test: "Is used to compare group means. Is one of the most common tests and is used to determine whether the means of two groups are equal to each other".

Calculate the statistic

We can replace in formula (1) the info given like this:

t=\frac{14.68-18.77}{\sqrt{\frac{11.87^2}{32}+\frac{16.79^2}{30}}}}=-1.10  

6 0
3 years ago
4. Kristina is allowed to have a friend sleep over every 3rd weekend,
PSYCHO15rus [73]

Answer:

6

Step-by-step explanation:

You must find the least common multiple of their schedules.

The numbers 3 and 2 are their own prime factors, so the least common multiple of 3 and 2 is 6.

Six weekends must pass until they can both have someone over on the same night.

The number line below shows that the first time their sleepovers coincide is Week 6.

3 0
3 years ago
What number has 9 tens, 7 fewer thousands than tens, the same number of hundreds as
wel

Answer:

123456678890

Step-by-step explanation:

I think this is the answer

4 0
3 years ago
What is 1/3 in decimal and percents and plz explain
nekit [7.7K]

Answer:

Decimal: 0.33

Percent: 33.33

Step-by-step explanation:

First 3/1 =0.33333333333 and so on

so put first to numbers 0.33

Second move decimal to right 2 places.

0.33 -> 03.3-> 33.0 or 33

There you go

6 0
3 years ago
Other questions:
  • HELP I WILL GIVE BRAINLIEST THANKYOU PLEASE YOU DONT HAVE TO ANSEER ALL
    8·2 answers
  • A rectangular room has a perimeter of 70m and is 20m long. Write an equation to represent the area.
    13·2 answers
  • Simplify 35.36 over 17
    6·1 answer
  • Use formulas to find the lateral area and surface area of the given prism. round your answer to the nearest whole number.
    13·1 answer
  • Monica bought a car for $x 3 years ago. Due to an inflation rate of 6% p.a. this car is now worth Mexican peso 50,000. Calculate
    11·1 answer
  • Lisa had 15 daisies. She gave away 7 daisies. Then she found 3 more daisies. How many daisies does Lisa have now?
    14·2 answers
  • A person ears $16,700 one year and gets a 5% raise in salary. What is the new salary?
    8·1 answer
  • 2/4 lb= ? plz anwser
    9·2 answers
  • 3) Which of the following is the equation for
    8·1 answer
  • 400 is 75% of what number?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!