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
[IMPORTANT PLEASE READ!!] I am currently at home, I'm in summer school for Algebra 1. I'm taking a pre-test, once I finish this
Llana [10]
<h2>Answer:</h2>

The vertex of the function is:

                             (-2,-2)

<h2>Step-by-step explanation:</h2>

We are given a absolute value function f(x) in terms of variable "x" as:

                       f(x)=-|x+2|-2

We know that for any absolute function of the general form:

f(x)=a|x-h|+k

the vertex of the function is : (h,k)

and if a<0 the graph of function opens downwards.

and if a>0 the graph of the function opens upwards.

Hence, here after comparing  the equation with general form of the equation we see that:

a= -1<0 , h= -2 and k= -2

Since a is negative , hence, the graph opens down .

         Hence, the vertex of the function is:

                         (-2,-2)

3 0
3 years ago
Read 2 more answers
Garth is packing boxes with books.the list shows how many books are in each 10 of boxes
SCORPION-xisa [38]

The median of books to a box is 9 and The mean of books to a box is 11

The complete question is

Garth is packing boxes with books. The list shows how many boxes are in each of 10 boxes. 6,14,6,18,9,9,12,10,11,15

Which statement is true about the number of boxes packed to a box?

A) The median # of books to a box is 8

B) The median # of books to a box is 9

C) The mean # of books to a box is 11

D) The mean # of books to a box is 12

<h3>What is Mean and Median ?</h3>

Mean is the average of the data given while the median is the middle point of the data.

It is given that

The data is

6, 14, 6, 18, 9, 9, 12, 10, 11, 15

The mean is

(6 + 14 + 6 + 18 + 9 + 9 + 12 + 10 + 11 + 15)/10 = 11

and the median is 9

Therefore Option B and C is the correct answer.

To know more about Mean and Median

brainly.com/question/17060266

#SPJ1

3 0
2 years ago
Find the slope of line that passes through the points (4,-6) and (7,2)
BartSMP [9]

Answer:

8/3

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Can somebody plz answer questions 13-18 correctly thank you!
erik [133]

Answer:

13. 20%

14.7%

15. 3.5%

16.45%

17. 84%

18. 68.5%

3 0
3 years ago
Craig went bowling with 25$ to spend. He rented shoes for $5.25 and paid $4.00 for each game. What was the greatest number of ga
lidiya [134]
25-5.25 gives you the amount of money Craig can spend for games. 25-5.25=19.75. If Craig can spend 19.75, he can play only 4 whole games.
5 0
3 years ago
Read 2 more answers
Other questions:
  • Sarah bought a shirt on sale for $35 the original price of the shirt was 3 times that amount sarah also bought a pair of shoes o
    15·1 answer
  • A and B are complementary angles if angle a equals (X +24) and angle B equals (X +16) then what is the measurement of b
    5·1 answer
  • Anyone know this thanks
    12·1 answer
  • Please help me I will give you all my points
    15·2 answers
  • Two of it of his favorite buildings are Chicago Sears Tower and the Dubai's Burj Khalifa. If Burji Khalifa stands 830 meters hig
    8·1 answer
  • The length of Ab &amp; Df with work shown
    12·1 answer
  • Hey there! I know this is prob really simple and I am beginning to understand it, but my problem is
    13·1 answer
  • Can I get help finding the value of m and n
    9·1 answer
  • Ms. Perez invested $20,000 in an account that pays 2.5% annual simple 10 points
    7·1 answer
  • 46°<br> Х<br> x<br> X =<br> degrees.
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!