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
PSYCHO15rus [73]
3 years ago
11

A yearbook company was investigating whether there is a significant difference between two states in the percents of high school

students who order yearbooks. From a random sample of 150 students selected from one state, 70 had ordered a yearbook. From a random sample of 100 students selected from the other state, 65 had ordered a yearbook. Which of the following is the most appropriate method for analyzing the results?
A. A one-sample zz-test for a sample proportion
B. A one-sample zz-test for a population proportion
C. A two-sample zz-test for a difference in sample proportions
D. A two-sample zz-test for a difference in population proportions
E. A two-sample zz-test for a population proportion
Mathematics
1 answer:
vovikov84 [41]3 years ago
5 0

Answer:

Null hypothesis: p_1 = p_2

Alternative hypothesis: p_1 \neq p_2

So we need to conduct a:

D. A two-sample z-test for a difference in population proportions

Because the idea is to check if the population proportions in the states are similar or not.

Step-by-step explanation:

For this case they are trying two proof if there is a significant difference between two states in the percents of high school students who order yearbooks, and we chan check this with the difference of proportions.

Lets say that p_1,p_2 are the two proportions of interest and we want to check the following hypothesis:

We have the following info given:

\hat p_1 = \frac{70}{150}= 0.47 proportion of students that had ordered a yearbook from one state

\hat p_2= \frac{65}{100}= 0.65 proportion of students that had ordered a yearbook from another state

n_1 = 150 sample size from one state

n_2=100 sample size from another state

Null hypothesis: p_1 = p_2

Alternative hypothesis: p_1 \neq p_2

So we need to conduct a:

D. A two-sample z-test for a difference in population proportions

Because the idea is to check if the population proportions in the states are similar or not.

You might be interested in
What is the greatest common factor (GCF) of 25 and 35​
yawa3891 [41]

Answer:

15

Step-by-step explanation:

The GCF of 25 and 35, is 15

6 0
3 years ago
Read 2 more answers
Match the equation with the graph -0.4x-0.8y=0.10
laiz [17]
Can't see the graph, but it should look something like this:

7 0
3 years ago
how many unique triangles can be made where one angle measures 98 degrees and another angle is an obtuse angle
aliya0001 [1]
None because it is impossible for any triangle to have more than one obtuse angle.
7 0
3 years ago
Read 2 more answers
Which graph shows the polar coordinates (-3,-) plotted
Slav-nsk [51]
Graph 1 would be the answer
3 0
3 years ago
Complete the table for the given rule. Y= x+2/3
3241004551 [841]

Answer:

decimal: x0.6 or fraction: 2/3

Step-by-step explanation:

3 0
3 years ago
Other questions:
  • the weight of an object on a particular scale is 175.2 lbs .the measured weight may vary from the actual weight be at most 0.1 l
    13·1 answer
  • Preston goes on a camel safari in Africa. They travel 5 km north, then 3km east and then 1 km north again. What distance did he
    11·1 answer
  • PLS HELP ME ASAP GUYS!! THANK U SM!! HELP! Thank u!!
    12·1 answer
  • Solve the exponential equation: 6x-3 = 216x-3
    9·2 answers
  • The square of p varies inversely as q. When Q=6 p=4
    14·1 answer
  • Which statement best describes the area of Triangle ABC shown below? A triangle ABC is shown on a grid. The vertex A is on order
    11·2 answers
  • Please answer I need it asap don’t have to show your work I just need it !!!
    6·1 answer
  • Think of an activity that you enjoy or are interested in. Some examples are reading, swimming, or leveling up your gaming charac
    10·2 answers
  • Solve -7 < 3x + 2 < 14
    5·2 answers
  • If a household uses 196kWh of electricity in a month,how much would they pay for their electricity consumption, excluding VAT
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!