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
matrenka [14]
3 years ago
5

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 45 expectant mothers have mean weight increase of 16.3 pounds in the second trimester, with a standard deviation of 5.9 pounds. A hypothesis test is done to see if there is evidence that weight increase in the second trimester is greater than 14 pounds. Find the p -value for the hypothesis test. The p -value should be rounded to 4 decimal places.
Mathematics
1 answer:
antiseptic1488 [7]3 years ago
5 0

Answer:

0.9955

Step-by-step explanation:

Given :

Mean weight increase , μ = 14

Sample mean weight increase , xbar = 16.3

Standard deviation, s = 5.9

Sample size, n = 45

Hypothesis :

H0 : μ = 14

H1 : μ > 14

The test statistic : (xbar - μ) ÷ (s/sqrt(n))

Test statistic = (16.3 - 14) ÷ (5.9/sqrt(45))

Test statistic = 2.3 / 0.8795200

Test statistic = 2.615

The Pvalue :

P(Z < 2.615) = 0.99554

Hence, pvalue = 0.9955 (4 decimal places).

You might be interested in
Which number line represents the solution set for the inequality 2x - 62 6(x-2) + 8?
Tcecarenko [31]

not sure but you should use jiskha or photo math. hope this helps

5 0
2 years ago
A phone costs $50 and goes on sale for 20% off. Select the amount that was discounted as well as the final price after the sale.
Afina-wow [57]

Answer:

40% because every 10$ = 20%

Step-by-step explanation:

6 0
3 years ago
How much tax is withheld from 53,620 if tax rate is 7%.?
Tems11 [23]

The withheld tax is 3753.4

To get this you do 53,620 x .07

3 0
3 years ago
Read 2 more answers
Determine whether or not there is a congruence between △abc and △def. if there is such a congruence, then give the reason for it
Andru [333]

There is no congruence between the triangles based on the given information. In general, two sides and an angle not between them are insufficient to specify the triangle completely. In this case, the angles that are congruent are adjacent to non-corresponding sides, so even if SSA correspondence were sufficient to ensure congruence, it would not be sufficient in this case.


The appropriate choice is

... none

4 0
3 years ago
find the area of a parrellelogram whose base is of length 25 cm and the corresponding altitude is of length 8.4 cm​
Free_Kalibri [48]

Answer:

Check the above photo and do the sum

6 0
2 years ago
Other questions:
  • What are the zeros of the quadratic function represented by this graph?​
    6·1 answer
  • Chapter
    13·1 answer
  • Four more than a number is half the number
    9·2 answers
  • F(x) = a(X + 3)2 + 16<br> a = ?
    7·1 answer
  • Which statement describes the inverse of m(x) = x2 – 17x?
    12·1 answer
  • Subtract 4p^2-9p+11 from p^2-5p+4<br> Your answer should be a polynomial in standard form.
    11·1 answer
  • Eight friends share 64 tickets to the school carnival. Each friend has the same
    11·1 answer
  • MATHS HELPPPPP WHO CAN
    8·1 answer
  • H + 52 72<br> ———- = —-<br> 70. 56
    13·1 answer
  • SOMEONE PLEASE HELP ME!! Thanks!!
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!