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
liberstina [14]
3 years ago
13

Women's heights are normally distributed with a mean given by p = 63.6 in. and a standard deviation given by o = 2.5 in. (a) If

1' woiman is randomly selected, find the probability that her height is less than 67.4 in. Enter a number correct to 4 decimal places: (b): 1f 64 women are randomly selected, find the probability that they will have a mean height less than 67.4 in. Enter a number correct to 4 decimal places:​
Mathematics
1 answer:
Ganezh [65]3 years ago
4 0

Step-by-step explanation:

I am sorry question samajh Nahin a Raha question dijiye

You might be interested in
A t statistic was used to conduct a test of the null hypothesis H0: µ = 11 against the alternative Ha: µ ? 11, with a p-value eq
Andrews [41]

Answer:

e. A 98% confidence level.

Step-by-step explanation:

Confidence level represents the percentage of probability as well as certainty that the confidence interval would contain the true population parameter when a random sample is selected many times.

Confidence intervals provide us with an upper and lower limit surrounding the sample mean, and within this interval we can then be confident we have captured the population mean.

From the information given above, to solve this question, we need to find the largest level of confidence for which the confidence interval will NOT contain 11.

In order to do this, we must produce the confidence interval.

Producing the confidence interval, for H0: µ = 11 against Ha: µ ?

11 would definitely produce a P-value less than (<) 0.042. The reason being that we can reject null hypothesis and confidence interval will not contain the value 11.

From given options above we have values as 0.10, 0.08, 0.04, 0.03, and 0.02.

Out of all these values, p value = 0.042 < 0.10 and 0.042<0.08

Therefore,the largest level of confidence for which the confidence interval will NOT contain 11 is 98% confidence level.

5 0
3 years ago
the density of a certain material is such that weighs 6900 grams for every 4.5 quarts of volume express this density in pounds p
dlinn [17]

Answer:

d=101.4\ \text{pounds}/\text{feet}^3

Step-by-step explanation:

Given that,

Mass of material, m = 6900 grams

Volume of the material, V = 4.5 quarts

We need to find the density in pounds per cubic foot

We know that,

1 pound = 453.59 grams

⇒ 6900 grams = 15.21 pounds

Also, 1 cubic foot = 29.92 quarts

4.5 quart = 0.15 feet³

Density = mass/volume

Or

d=\dfrac{15.21\ \text{pounds}}{0.15\ \text{feet}^3}\\\\d=101.4\ \text{pounds}/\text{feet}^3

Hence, the density of the material is 101.4\ \text{pounds}/\text{feet}^3

3 0
3 years ago
The isosceles triangle ABC has an area of 48 square units if AB=12 what is the perimeter of Abc in units?
erastovalidia [21]

Answer:

the answer would be 4 because you multiply

5 0
2 years ago
The graph of y = |2 is shifted to the left by 6 units.<br> What is the equation of the new graph?
Tasya [4]

Answer:

From your question, I am assuming you are talking about an absolute value graph. In this case the answer would be y = |2 + 6|

Step-by-step explanation: Always remember, when you are graphing absolute value graphs:

When you shift left or right, you put the amount you are shifting inside the absolute value sign.

When you are shifting up or down, you put the amount you are shifting outside the absolute value sign.

When shifting left on a graph, you usually think of subtraction. However, when dealing with absolute value graphs, when you are shifting left, you use addition, as you can see in this problem.

The same goes for right. You use subtraction when shifting right, contrary to what you may think.

However, when you go up, you still use addition, and when you shift down, you still use subtraction.

3 0
3 years ago
3.) (1.012 X10-2) + (2.4X10-4)<br>​
DanielleElmas [232]

Answer:

=(10.12-2)+(24-4)

=8.12+20

=28.12

6 0
2 years ago
Other questions:
  • Please help. 25 points for answer
    15·1 answer
  • What is (x - 8)(x + 4) + (x - 3)(x + 9)?
    10·1 answer
  • Find the value of x. Then find the measure of each angle.
    15·1 answer
  • Which figure does not belong with the other three? Explain your reasoning.
    9·1 answer
  • Find the slope of the line through the pair of points below.<br> (17, -10), (-17, 2)
    13·1 answer
  • PLEASE HELP! WILL GIVE BRAINLIEST!
    8·1 answer
  • Aron wrote the function f(x)=25x-15 find the amount of money he would make after washing x cars. Select all that are in the doma
    5·1 answer
  • Mr. Gardner is purchased 13 pallets of bricks for a house.
    13·1 answer
  • HELP ILL GIVE BRAINLIEST
    9·1 answer
  • Please help!! Find x, A, B, and C
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!