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
True [87]
3 years ago
11

Anyone really good at stats?

Mathematics
1 answer:
qwelly [4]3 years ago
4 0
I had statistics in 10th grade
You might be interested in
For the given functions f and g, find the requested composite function value. (15 pts!!!)
White raven [17]
It would be b or d i hope that help

6 0
3 years ago
Determine whether the sequence below is a geometric sequence and, if so, find a formula that describes the sequence. 1, 3, 9, 27
Dmitry_Shevchenko [17]
This is geometric  with a common ratio of 3   (3/1 = 3 and 9/3 = 3 etc)
the formula for the nth term is 
an = 3^(n-1)
3 0
3 years ago
In \triangle BCD,△BCD, \overline{BC}\cong \overline{DB}
Mariana [72]

Answer:16.5

Step-by-step explanation: x+x+147=180

2x+147=180

2x=33

2x=33 divide by 2

x=16.5

8 0
3 years ago
An Austrian study was completed to determine if untrained sea lions and sea lionesses could follow various experimenter-given cu
Sholpan [36]

Using the z-distribution, it is found that since the test statistic is greater than the critical value for the right-tailed test, this result shows that Zwerg can correctly follow this type of direction by an experimenter more than 50% of the time.

<h3>What are the hypothesis?</h3>
  • At the null hypothesis, it is tested if Zwerg cannot correctly follow this type of direction by an experimenter more than 50% of the time, that is:

H_0: p \leq 0.5

  • At the alternative hypothesis, it is tested if Zwerg can correctly follow this type of direction by an experimenter more than 50% of the time, that is:

H_1: p > 0.5

<h3>Test statistic</h3>

The <em>test statistic</em> is given by:

z = \frac{\overline{p} - p}{\sqrt{\frac{p(1-p)}{n}}}

In which:

  • \overline{p} is the sample proportion.
  • p is the proportion tested at the null hypothesis.
  • n is the sample size.

For this problem, the parameters are:

n = 48, \overline{p} = \frac{37}{48} = 0.7708, p = 0.5

The value of the <em>test statistic</em> is:

z = \frac{\overline{p} - p}{\sqrt{\frac{p(1-p)}{n}}}

z = \frac{0.7708 - 0.5}{\sqrt{\frac{0.5(0.5)}{48}}}

z = 3.75

Considering a <u>right-tailed test</u>, as we are testing if the proportion is greater than a value, with a <u>significance level of 0.05</u>, the critical value for the z-distribution is z^{\ast} = 1.645.

Since the test statistic is greater than the critical value for the right-tailed test, this result shows that Zwerg can correctly follow this type of direction by an experimenter more than 50% of the time.

To learn more about the z-distribution, you can take a look at brainly.com/question/16313918

3 0
3 years ago
5x - 2 = - x - 20 what is the value of x
rodikova [14]
To get the answer, you have to isolate x. The first step to do so is to get the x's together, and the rest on the other side. You add 2 to both sides to get rid of the -2 on the left side, and add x to both sides to get rid of the -x on the right side so you have:
6x=-18
Your final step to isolating x is to divide both sides by 6 so you get:
x=-3
4 0
3 years ago
Other questions:
  • This is incredibly frustrating. PLEASE HELP ME
    12·1 answer
  • What is the value of X? Make sure to show all of your work!
    8·1 answer
  • 56 + 42 = 7(8 + 6) <br><br> Yes<br><br> No
    14·2 answers
  • What is the least number that has four are factors that are all the same
    5·1 answer
  • Which of the following is a radical equation?
    13·2 answers
  • 1) Psychology students at Wittenberg University completed the Dental Anxiety Scale questionnaire. Scores on the scale range from
    5·1 answer
  • Find the circumference and area of a circle. Using 3.41 as the approximate value for X.
    5·1 answer
  • Please help which of the following conditions does the graph meet?
    10·2 answers
  • 3.)
    9·1 answer
  • Eight hundred ninety-one billion, nine hundred sixty-two million, one hundred seventy-two thousand, four hundred nine
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!