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
anzhelika [568]
2 years ago
9

The following are the number of sales which a sample of 9 car salespeople of an insurance company in Florida and a sample of 8 s

alespeople in Washington made over a certain year. Florida: 39, 44, 42, 50, 55, 48, 51, 38, 54 Washington: 42, 43, 56, 50, 49, 52, 53, 56 Assuming that the populations sampled can be approximated closely with normal distributions having the same variance, is there a difference in the number of sales between the Florida salespeople and the Washington salespeople?
Find s^2p (round off to the nearest integer)
Mathematics
1 answer:
Montano1993 [528]2 years ago
5 0

Answer:

There is no difference in the number of sales between The Florida salespeople and Washington salespeople

Sp^2 = 39

Step-by-step explanation:

Given data :

Florida: 39, 44, 42, 50, 55, 48, 51, 38, 54

Washington: 42, 43, 56, 50, 49, 52, 53, 56

number of sales persons in Florida = 9

number of sales persons in Washington = 8

variance = constant

a)Determine if there is difference between the Florida salespeople and Washington salespeople

we will carry out a two tailed test based on the given data

H0 : u1 = u2  

H1 : u1 ≠ u2

x ( mean ) = 46.77,  y ( mean ) = 50.13 ,

s1^2 = 39.69,  s2^2 = 28.41,   n1 = 9 ,   n2 = 8

therefore :

Sp^2 = \frac{n1s1^2 + n2s2^2}{n1 + n2-2} =  38.96  ≈ 39

performing test statistic

t = \frac{x- y }{sp\sqrt{\frac{1}{n1} +\frac{1}{n2} } }    = \frac{-3.36}{3.0330} = -1.1078

critical value is at t = 0.05 and for a two tailed test it is at 2.13  therefore e accept H0 at 5% .    This shows that there is no difference in sales

You might be interested in
I know the answer but what’s the work
mina [271]

Answer:

(0.5r^2pi) + (0.5r^2pi) + (bh)

Step-by-step explanation:

All you need to do is to find the area of each shape, then add all areas together.

4 0
3 years ago
Read 2 more answers
A scientist measured the growth rate of a bamboo plant at 6 inches in 12 hours. She compared the growth rate of a bamboo plant t
Arturiano [62]

Answer:

Answer Picture:

Step-by-step explanation:

4 0
3 years ago
Express your ratio in simplest form : 85 out of 102
Artist 52 [7]
5:6 Hope this helps you!!

3 0
3 years ago
Read 2 more answers
Solve the following equation by first writing the equation in the form
Annette [7]

hope u understand......

6 0
3 years ago
Ivy invests $1000 at a simple interest rate of 7%. How much interest will Ivy earn in 3 years * $2100 $70 $210 I don't know
ololo11 [35]

Answer:$210

Step-by-step explanation: 7% of $1000 = $70 x 3yrs =$210

6 0
2 years ago
Read 2 more answers
Other questions:
  • If ac =x+3 and db=3x-19, find ac
    10·1 answer
  • What is the answer to 12×5-3×20
    14·2 answers
  • How Do I Do This Problem?
    10·1 answer
  • 1) What is the square root of 81​
    14·1 answer
  • The concentration C (in mg/cc) of a drug in a patient's bloodstream is related to the time t (in hours) after injection in such
    5·1 answer
  • Write the fractions from least to greatest 2/3 3/4 5/6
    8·1 answer
  • Given: AD diameter of Circle P. If m 1 = 40°, then m AB = A)80 B)40 C)20
    14·1 answer
  • The length of a rectangular swimming pool is exactly three times as long
    10·1 answer
  • Need help ASAP doing the test now …….
    14·1 answer
  • A rectangle has an area of 20 square centimeters.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!