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
Lisa [10]
3 years ago
13

The claim is that the white blood cell counts of adult females are normally​ distributed, with a standard deviation equal to 1.6

81.68. a random sample of 3939 adult females has white blood cell counts with a mean of 7.237.23 and a standard deviation of 1.951.95. find the value of the test statistic.
Mathematics
1 answer:
loris [4]3 years ago
3 0
The population standard deviation, σ = 1.68, the sample standard deviation, s = 1.95, the sample mean =7.23,  and the sample size, n = 39.The test statistics is given by
T=(n - 1) (s / σ)²
= (39 - 1) (1.95 / 1.68)²
= 38 (1.35)= 51.196
You might be interested in
You have a part-time job. You work for 3 hours on Friday and 6 hours on Saturday. You also receive an allowance of $20 per week.
olga55 [171]

Answer:

8 dollars per hour

Step-by-step explanation:

You make 92 a week

20 of that is from your allowance

92-20 = 72

72 is from your part time job

You work for 3 hours on Friday and 6 hours on Saturday, for a total of 3+6 = 9 hours

Take the amount of money earned and divide by the number of hours to determine the money earned per hour

72/9 = 8 dollars per hour

4 0
4 years ago
Read 2 more answers
Represent the model shown below using a
Angelina_Jolie [31]
You can represent this problem by using the multiplication problem 5x4
6 0
3 years ago
Read 2 more answers
Hola chicos, soy nuevo en brainly, y estoy teniendo algunos problemas con el curso de ecuaciones diferenciales, podrían por favo
weqwewe [10]

Answer:

hi!!

Step-by-step explanation:

7 0
3 years ago
The vertex of this parabola is at (-4,-1). When the y-value is 0, the xvalue is 2
yaroslaw [1]
The standard form for this parabola is x = a(y-k)^2 + h because this is a sideways-opening parabola. Our h and k values for the vertex are (-4, -1). And it goes through (2,0). We just need to solve for the a. Filling in accordingly, 2 = a(0+1)^2-4 so 2 = a - 4. a = 6. A above.

correct answer is 6!
8 0
3 years ago
7 = x + 12<br><br><br><br> A. -19 B. -5 C. 4 D. 5
Elena L [17]

You have to get "X" by itself so you subtract 12, 7-12 is -5 so "X" = - 5


5 0
3 years ago
Read 2 more answers
Other questions:
  • PLZ HELP WITH GEOMETRY!!!
    11·2 answers
  • Group of engineers is building a parabolic satellite dish whose shape will be formed by rotating the curve y = ax2 about the y-a
    10·1 answer
  • Which is equal to –214°?
    15·1 answer
  • I am part of a whole. I am greater than three fourths but less than nine tenths. I am a decimal with a 3 in its hundredth place.
    13·2 answers
  • "At an ice cream shop, customers pay $3.00 for a medium ice cream plus $0.75 per topping. At a second ice cream shop, customers
    9·1 answer
  • 7.1 + 16.04 – .2 = ?
    10·2 answers
  • -3(2x-4)-2=2(5-3x)<br> ANSWER NEEDED ASAP please
    9·1 answer
  • jillian buys 4 erasers that each cost $0.35.She makes the number line below to help her find the total cost. What is the total c
    10·1 answer
  • If PQR = STU, find the measure of each part.
    13·1 answer
  • Can somebody help me with this please ​
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!