![Likat1006](/avatars/24689.jpg)
Likat1006
24.07.2019 •
Mathematics
Katie invests $5,000 in an account earning 4% interest, compounded annually for 5 years. two years after katie's initial investment, emily invests $10,000 in an account earning 4% interest, compounded annually for 3 years. given that no additional deposits are made, compare the amount of interest earned after the interest period ends for each account. (round to the nearest dollar) a) katie earned $408 more in interest in her account than emily. b) emily earned $408 more in interest in her account than katie. c) katie earned $166 more in interest in her account than emily. d) emily earned $166 more in interest in her account than katie.
Solved
Show answers
More tips
- F Family and Home How to Get Rid of Your Neighbors?...
- S Society and Politics How Could Nobody Know About the Dead Mountaineers?...
- H Health and Medicine How to Cure Adenoids?...
- H Health and Medicine Why Wearing a Back Brace Can Be Beneficial During Back Strain?...
- S Sport When and Where Will the 2014 World Cup be Held?...
- C Computers and Internet How to Choose a Monitor?...
- H Horoscopes, Magic, Divination Where Did Tarot Cards Come From?...
- S Style and Beauty How to Make Your Lips Fuller? Ideas and Tips for Beautiful Lips...
- C Computers and Internet How to Learn to Type Fast?...
Answers on questions: Mathematics
- M Mathematics 99 points plus brainiest answer. 1. mark estimates that the distance from his house to his school is 15.5 mi. the actual distance is 14.5 mi. to the nearest tenth of a percent,...
- M Mathematics Which of the these statements are true? 233,232. a. the first 2 represents a value that is 10 times greater than the second 2. b. the first 3 represents a value that is one hundred...
- M Mathematics Consider the two function machines that are placed as shown. find the final output for 0,5,12. f(x)=8x g(x)=x+3 (g°f)(x) the output for 0 the output for 5 the output for 12...
- M Mathematics Find the value of the underline digit 6035...
- M Mathematics Is this number sentence true or false? justify your answer7 + 5 + 3 + x = x + 3 + 12asap...
- M Mathematics Ineed finding the answer to #1 and #2...
- M Mathematics a stained glass window is in the shape of a square. a sketch of the window with some of its dimensions is shown below. what is the length to the nearest tenth of a foot of the...
- M Mathematics Find the measure of the indicated angle...
- M Mathematics To which set or sets does the number 8/4 belong a) Integers Onlyb) Rational Numbers Onlyc) Whole numbers onlyd) Integers and rational numbers onlye) Whole numbers , Integers ,...
- M Mathematics Conference ID 745 1530 5596 Passcode QJmyP6 its a zoom...
Ответ:
We use the compound interest formula for both of these:
For Katie's deposit:
This gives Katie 6083.26-5000 = 1083.26 in interest (1083, to the nearest dollar).
For Emily's deposit:
This means she earned 11248.64-10000=1248.64 in interest (1249, to the nearest dollar).
The difference in interest is given by 1249-1083=166
Ответ:
So the p value obtained was a very high value and using the significance level given
we have
so we can conclude that we have enough evidence to FAIL to reject the null hypothesis, and we can said that at 5% of significance the proportion of people said that blue is their favorite color is not differetn from 0.24 or 24% at 5% of significance.
Step-by-step explanation:
Data given and notation
n=75 represent the random sample taken
X=19 represent the number of people said that blue is their favorite color
Confidence=95% or 0.95
z would represent the statistic (variable of interest)
Concepts and formulas to use
We need to conduct a hypothesis in order to test the claim that the true proportion differs from 0.24 nor no.:
Null hypothesis:
Alternative hypothesis:
When we conduct a proportion test we need to use the z statisitc, 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
.
Calculate the statistic
Since we have all the info requires we can replace in formula (1) like this:
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 significance level provided
. The next step would be calculate the p value for this test.
Since is a bilateral test the p value would be:
So the p value obtained was a very high value and using the significance level given
we have
so we can conclude that we have enough evidence to FAIL to reject the null hypothesis, and we can said that at 5% of significance the proportion of people said that blue is their favorite color is not differetn from 0.24 or 24% at 5% of significance.