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
DIA [1.3K]
3 years ago
14

Child Health and Development Studies (CHDS) has been collecting data about expectant mothers in Oakland, CA since 1959. One of t

he measurements taken by CHDS is the weight increase (in pounds) for expectant mothers in the second trimester. In a fictitious study, suppose that CHDS finds the average weight increase in the second trimester is 14 pounds. Suppose also that, in 2015, a random sample of 40 expectant mothers have mean weight increase of 16 pounds in the second trimester, with a standard deviation of 6 pounds. At the 5% significance level, we can conduct a one-sided T-test to see if the mean weight increase in 2015 is greater than 14 pounds. Statistical software tells us that the p-value = 0.021
Which of the following is the most appropriate conclusion?

a. There is a 2.1% chance that a random sample of 40 expectant mothers will have a mean weight increase of 16 pounds or greater if the mean second trimester weight gain for all expectant mothers is 14 pounds.
b. There is a 2.1% chance that mean second trimester weight gain for all expectant mothers is 14 pounds in 2015.
c. There is a 2.1% chance that mean second trimester weight gain for all expectant mothers is 16 pounds in 2015.
d. There is 2.1% chance that the population of expectant mothers will have a mean weight increase of 16 pounds or greater in 2015 if the mean second trimester weight gain for all expectant mothers was 14 pounds in 1959.
Mathematics
2 answers:
Alborosie3 years ago
7 0

Answer:

Option A - There is a 2.1% chance that a random sample of 40 expectant mothers will have a mean weight increase of 16 pounds or greater if the mean second trimester weight gain for all expectant mothers is 14 pounds.

Lunna [17]3 years ago
5 0

Answer:b

Step-by-step explanation:

You might be interested in
After 6 days, the mass m, in grams, of
juin [17]

Answer:

123445

Step-by-step explanation:

125123254125

3 0
3 years ago
Read 2 more answers
Chen bought a 20-foot chain for $36.50. What is the unit rate of price per foot?
jasenka [17]
About 1.83. You would set up the equation like this
3 0
2 years ago
Element X is a radioactive isotope such that every 25 years, its mass decreases by
luda_lava [24]

Answer: 26

Step-by-step explanation:

6 0
3 years ago
Help ???????????????????????
Likurg_2 [28]

Answer:

I dont remember how to do this but i wish you luck, try searching on khan academy for how to do this ;)

Step-by-step explanation:

5 0
3 years ago
-85 divided by 0.4<br> Explain
matrenka [14]

Answer:

-212.5

Step-by-step explanation:

-212.5 x 0.4 = -85

4 0
3 years ago
Other questions:
  • What is the answer ?
    11·1 answer
  • Gm someone help me ?
    11·2 answers
  • The only way to identify an intercept is as an ordered pair.<br><br> True<br> False
    7·1 answer
  • At a school costume party, seven girls wore masks nine
    12·1 answer
  • Will give brainleist Write an equation in slope intercept form. (Remember you need to find the “b,” using (x,y)
    10·1 answer
  • A shirt is on sale for 30%
    5·2 answers
  • Does the following statement refer to a growth or fixed mindset? "If I have to try, I must not be smart."
    13·1 answer
  • Jeremiah's dog eats 3/4 of a can of food each day. Jeremiah currently has 2 1/4 cans of dog food. How many days will the current
    14·1 answer
  • These are confusing can anyone help with this?
    10·1 answer
  • Pls help me to find out this answer e,f,g,h no. only​
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!