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
LiRa [457]
3 years ago
9

Question 101 pts Suppose that you had consumer group wanted to test to see if weight of participants in a weight loss program ch

anged (up or down). They computed a 95% confidence interval of the result (2.177, 4.977). What do we know about the p-value for the test? Group of answer choices It would be greater than 0.05. Can not be determined. It would be 0.05. It would be less than 0.05.
Mathematics
1 answer:
Mazyrski [523]3 years ago
3 0

Answer:

It would be less than 0.05.

Step-by-step explanation:

The hypothesis test was done to claim that the weight of participants has changed.

The null and alternative hypothesis could be written as:

H_0: \mu=0\\\\H_a: \mu\neq0

being μ the population mean change in weight.

With that information, we can tell that is a two tailed test. Sample means that fall in any of the tails, with a z-statistic over 1.96 or under -1.96 (at a significance level of 0.05), will be evidence to reject the null hypothesis.

The information we have about the sample is the 95% confidence interval calculated from the sample information.

This confidence interval does not include the value μ=0.

Then, there is 2.5% of probabiltity that the population mean is under 2.177, the lower bound of the interval, which includes the value μ=0.

With this information, we can conclude that the P-value have to be under 0.05.

You might be interested in
Find the odds for and the odds against the event rolling a fair die and getting a 4, a 2, or a 1.
HACTEHA [7]

Answer: Both in favor and against: 3/6 OR 1/2 OR 50%.

Step-by-step explanation: Both in favor and against: 3/6 OR 1/2 OR 50%.

The probability of rolling one die and getting any digit is \frac{1}{6}. That is because the desired outcome is only 1 digit out of the 6 total digits on each of the six sides.

That means the probability of rolling either a 1, a 2, or a 4 <em>if you are looking for any of those numbers specifically, </em>is \frac{1}{6}. But! You are looking to roll a 1, a 2, or a 4, without any preference among those three. Therefore, you are going to add the desired outcomes.

\frac{1}{6} + \frac{1}{6}  + \frac{1}{6} = \frac{3}{6} = \frac{1}{2} = 0.5 = 50%

Above, are added the probability of rolling a 1 PLUS the probability of rolling a 2 PLUS the probability of rolling a 4, yielding a 50% probability.

Think about it. There are six total digits on a die. You are okay with rolling three of those. Three is half of six. Therefore, the probability of rolling the number you'd like is one-half, fifty-percent.

Likewise, since the probability of all complement events happening is 1 (or 100%), The odds against rolling either 1, 2, or 4 is also fifty-percent. 100% (which is rolling <em>any </em>number on a die) MINUS 50% (which is rolling a 1, a 2, or a 4 with no preference) EQUALS TO 50% (which is rolling a 3, a 5, or a 6).

8 0
3 years ago
Given f(x)=3/4x and f(x) = 75 solve for x
mixer [17]

Answer:

x=100

Step-by-step explanation:

75=3/4x

4/3 × 75 = x

4 × 75 = 300

300/3= 100

100(3/4) = 75

x = 100

6 0
3 years ago
Find BD.<br> help me pls
Anna [14]

Answer:

16

Step-by-step explanation:

We can see that Ar is the perpendicular bisector of chord BD. Since A is the center of the circle, AR is the radius of the circle, which is 10 (6+4)

Next, we can see that when we connect point A to point D, it is also a radius. Thus, AD is also equal to 10 as the radius of the circle remains the same.

Using Pythagoras theorem, a^2 + b^2 = c^2, we can make a right angled triangle of ACD.

AC = 6 = a

CD = ? = b

AD = 10 = c

10^2 = 6^2 + b^2

b^2 = 10^2 - 6^2 = 64

b = CD = 8

Now, since Ar is the perpendicular bisector of chord BD, BD = CD x 2

BD = 8 x 2 = <u>16</u>

5 0
2 years ago
Is –2,823,680 − 8,957,599 positive or negative?
Scrat [10]

Answer:

negative

Step-by-step explanation: it has negative signs

3 0
3 years ago
Read 2 more answers
Suppose an investment of $2,300 doubles in value every decade. The function F(X)= 2300 * 2^X gives the value of the investment a
kotykmax [81]

You hit the right target!

\[\Huge\color{}\checkmark\]

It is 9200

Just to be sure, substitute with x = 2 in the equation.

8 0
3 years ago
Other questions:
  • Which is a simplified form of the expression -3p – 4 + 4p + 8?
    6·1 answer
  • Express in decimal notation. 1.56 × 10^−4
    13·2 answers
  • The sum of two positive integers 76. The first number is three times the second number. Find the two numbers. What are the two n
    9·1 answer
  • What is 2 2/3+1 1/2
    7·2 answers
  • PLEASE HELP ME!?!?! The equation of a standard pitcher’s mound in baseball is (x+5)^2 + (y+7)^2=81 The center the pitcher’s moun
    11·1 answer
  • The binomial (a+5) is a factor of a +7a+10. What is the other factor?
    12·1 answer
  • Many, many people have made incorrect assumptions based on probability. Some of the most obvious cases come from people who gamb
    13·1 answer
  • Keta Sold tickets for her school play at $s6 for students, and $9 for adults. She sold 15 adult tickets and made a sales total o
    9·1 answer
  • Simplify: startroot startfraction 25 over 441 endfraction endroot the prime factorization of 25 is . the prime factorization of
    11·1 answer
  • Which statement describes the end behavior of the function f(x)= |x-7| -7?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!