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
igomit [66]
3 years ago
10

A study reveals that 65% of homeowners in Omaha own a lawn mower. To test this claim, you form a sample of 500 homeowners in Oma

ha, of which, 68% owned a lawnmower. Is there enough evidence to reject the claim using a level of significance of 5%?
Mathematics
1 answer:
kotegsom [21]3 years ago
6 0

Answer:

There is no enough evidence to reject the claim using a level of significance of 5%

Step-by-step explanation:

Let p be the true proportion of homeowners in Omaha who own a lawnmower. We want to test  

H_{0}: p = p_{0} = 0.65 vs H_{1}: p\neq 0.65 (two-tailed alternative).

We have a large sample of size n = 500 and a point estimate for p is \hat{p}=0.68. The test statistic is given by

Z=\frac{\hat{p}-p_{0}}{\sqrt{p_{0}(1-p_{0})/n}}=\frac{0.68-0.65}{\sqrt{0.65(1-0.65)/500}} where \sqrt{0.65(1-0.65)/500} is the standard error of \hat{p} when H_{0} is true. The observed value is z_{0} = 1.4064 which comes from a standard normal distribution. Because we want to use a level of significance of 5%, our rejection region is RR={z | z < -1.96 or z > 1.96} where -1.96 and 1.96 are the 2.5th and 97.5th quantiles respectively. Because 1.4064 does not belong to RR, we fail to reject the null hypothesis.

You might be interested in
65/100=55.24/x what is the answer?
ANEK [815]

Answer:

DDKEFD

Step-by-step explanation:

4 0
3 years ago
Seven tickets for a Broadway show cost $385. How much will only 4 tickets cost?
irina1246 [14]

Answer:

That seems a little hard-

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
PLEASE HELP!
ycow [4]

Answer:

I dont know what sin is

Step-by-step explanation:

3 0
3 years ago
Where A = -7 and b = 9 what is the value of the midpoint?
sergey [27]

Answer:

Find the value of x if B is the midpoint of AC, AB = 2x + 9 and BC = 37

Step-by-step explanation:

8 0
3 years ago
Juanita and Samuel are planning a pizza party. They order a rectangle sheet pizza that measures 21 inches by 36 inches.?They tel
saveliy_v [14]
First, find the total area of pizza. The area of a rectangle is length times width. 

Area = 21 x 36 = 756 sq. inches

Now, we must divide the total area with the largest square possible without any excess. So, we equate the area of the pizza to area of square:

A = s² = 756
s = 6 √21

Hence, the largest piece square possible has a side of 6 inches. Then, we divide the total area of the pizza by the area of each square piece to find the number of pieces;

756/6² = 21

Thus, there would be 21 pieces of 6-in square piece of pizza.
7 0
3 years ago
Other questions:
  • Please help, I don’t get it
    10·1 answer
  • Chloe spent $69 and now has no money left. She had before her purchase. She had $ before her purchase. can you please help me wi
    13·1 answer
  • You and your friend are both saving your allowance for your summer vacation you have $48.50 in the bank
    14·1 answer
  • 5/3 to the power of 3
    13·1 answer
  • AWARDING BRAINLIEST!
    10·2 answers
  • F(x) = x2. What is g(x)?<br><br> pls help it’s due soon!!
    14·1 answer
  • Anyone know this????
    5·1 answer
  • Can someone help me with my exit ticket please !!!
    12·1 answer
  • Each of the following correctly match an English phrase with a mathematical expression except
    14·1 answer
  • 3(x+2) PLEASE SHOW WORK
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!