![Ariannamorales22](/avatars/11691.jpg)
Ariannamorales22
19.12.2019 •
Mathematics
Use the statistical applet: p ‑value for a test of one proportion to answer the question.you have taken a sample of =1000 individuals and asked them if they typically eat breakfast. because eating breakfast is considered healthy, you would like to know if the proportion in the population who eat breakfast is more than two‑thirds, about 67%if you only asked the question of =20 people and found =15 , what is the p ‑value? p-value=
Solved
Show answers
More tips
- F Food and Cooking How to Properly Collect Mushrooms? A Comprehensive Guide...
- C Computers and Internet 3D Glasses! What is this thing?...
- C Computers and Internet How to insert videos into LiveJournal?...
- C Computers and Internet How Much Does an iPhone Cost in America?...
- F Family and Home How to Choose the Best Diapers for Your Baby?...
- F Family and Home Parquet or laminate, which is better?...
- L Leisure and Entertainment How to Properly Wind Fishing Line onto a Reel?...
- L Leisure and Entertainment How to Make a Paper Boat in Simple Steps...
- T Travel and tourism Maldives Adventures: What is the Best Season to Visit the Luxurious Beaches?...
- H Health and Medicine Kinesiology: What is it and How Does it Work?...
Answers on questions: Mathematics
- M Mathematics Please please help I will give brainliest to the first person to answer this with the right answer Find the expected value of the winnings from a game that has the following payout...
- M Mathematics Insurance companies are interested in knowing the population percent of drivers who always buckle up before riding in a car. They randomly survey 395 drivers and find that 285 claim...
- M Mathematics Select the correct answer from the drop-down menu. Using only a compass and a straightedge, you are constructing a line perpendicular to AB and passing through a given point Mon AB....
- M Mathematics I can t seem to solve this What 6÷2(1+2) Is?...
- M Mathematics Which gym has the more expensive cost per month? Show your work to support your answer....
- M Mathematics The distance around the Earth at the equator is more than 130,000,000 feet. Write this number in scientific notation....
- M Mathematics A tree that grows 3 feet every 5 years is growing at a rate of *blank* feet per year 0.6 15 60 ( ill give to whoever answer first w an explanation)...
- M Mathematics Calculate ∂z∂x∂z∂x and ∂z∂y∂z∂y at the points (1,17,2)(1,17,2) and (1,17,−2),(1,17,−2), where zz is defined implicity by the equation z4 z2x2−y−3...
- M Mathematics Complete the table below for the function y= 3x...
- M Mathematics A. 3x - 4y = 5 B. 3x - 4y = 2 С. 4x - 3y = 5 D. 4x - 3y = -2...
Ответ:
So the p value obtained was a very low value and using the significance level assumed
we have
so we can conclude that we have enough evidence to reject the null hypothesis, and we can said that at 5% of significance the proportion of interest is highr than 0.67 or 67% .
Step-by-step explanation:
1) Data given and notation
n=20 represent the random sample taken
X=15 represent the people who eat breakfast
Confidence=95% or 0.95
z would represent the statistic (variable of interest)
2) Concepts and formulas to use
We need to conduct a hypothesis in order to test the claim that the true proportion is higher than 67%:
Null hypothesis:
Alternative hypothesis:
When we conduct a proportion test we need to use the z statistic, and the is given by:
The One-Sample Proportion Test is used to assess whether a population proportion
is significantly different from a hypothesized value
.
3) Calculate the statistic
Since we have all the info requires we can replace in formula (1) like this:
4) Statistical decision
It's important to refresh the p value method or p value approach . "This method is about determining "likely" or "unlikely" by determining the probability assuming the null hypothesis were true of observing a more extreme test statistic in the direction of the alternative hypothesis than the one observed". Or in other words is just a method to have an statistical decision to fail to reject or reject the null hypothesis.
The next step would be calculate the p value for this test.
Since is a right tailed test the p value would be:
So the p value obtained was a very low value and using the significance level assumed
we have
so we can conclude that we have enough evidence to reject the null hypothesis, and we can said that at 5% of significance the proportion of interest is highr than 0.67 or 67% .
Ответ: