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
lesya [120]
3 years ago
6

In engineering and product design, it is important to consider the weights of people so that airplanes or elevators aren't overl

oaded. Based on data from the National Health Survey, we can assume the weight of adult males in the US has a mean weight of 177 pounds and standard deviation of 32 pounds. We randomly select 50 adult males. What is the probability that the average weight of these 50 adult males is over 190 pounds?
Mathematics
1 answer:
Nataly [62]3 years ago
5 0

Answer:

0.002

Step-by-step explanation:

We need to estimate the standard error of the mean, so we can use it as a standard deviation of the sample of 50 males.

Standard error of the mean = standard deviation/√n

Standard error of the mean = 32/√50 = 4.52

Now we can use this Standard error of the mean to estimate z as follows:

Z = (x – mean)/standard deviation

Z = (190-177)/4.52

Z = 2.87

Using  a Z table we can find probability that mean is under 190

P (z<190)= 0.998

For the probability that the mean exceed 190 lbs we substract from 1

P(z>190) = 1 - 0.998 = 0.002

You might be interested in
3x+4=<br><br><br><br><br><br><br><br>what does it equal​
lakkis [162]
X is equal to -3/4.
4 0
3 years ago
-11-2+3(4*6^2/(-9))]
Lelechka [254]

Answer:

use calculating

Step-by-step explanation:

get a calculator and type it

8 0
3 years ago
Read 2 more answers
The local parts shop buys a machine that costs $500000. Its value depreciates exponentially each year by 10%. What is the machin
Svetach [21]
The answer is 250000
hope it helps please mark as brainliest
7 0
3 years ago
Luke scored 21 goals in 7 games. if he scores goals at the same rate how many goals will he score in 23 games
Gre4nikov [31]
<span>Luke scored 21 goals in 7 games. if he scores goals at the same rate how many goals will he score in 23 games 
</span>the answer is 69 
you divide 21 by 7 which is 3 and you multiply 3 by 23 and you get 69
3 0
3 years ago
Let f(x) = 4x - 3 and h(x) = -5x + 7 . F(-3) + h(2)
zheka24 [161]
F(-3) = -12 - 3 = -15
h(2) = -10 + 7 = -3

-15 + (-3)

-18
5 0
3 years ago
Other questions:
  • Classify the two given samples as independent or dependent. sample​ 1: the scores of 20 students who took the act sample​ 2: the
    12·1 answer
  • What’s the answering need help
    7·2 answers
  • Explain how to rewrite the function shown in order to determine the transformation of the parent function. Then, describe the tr
    7·2 answers
  • I need help finding the domain and range for the graph
    13·1 answer
  • What is the relationship between the 2s in 3228
    6·1 answer
  • The students in a furniture-making class make a tabletop shaed lke a the figure shown. The tabletop has squares cut out of the c
    11·1 answer
  • Reduce to simplest form. -3/5 plus 1/3​
    8·1 answer
  • What is the value of -3.25
    8·1 answer
  • Find the value of x. *<br><br> Please help
    11·1 answer
  • Find x and y <br><br> can someone pls help
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!