A survey of recent first-time home buyers found that 45% of them plan to upgrade to a bigger house within 5 years. You randomly select 30 recent first-time home buyers and ask them whether they plan to upgrade to a bigger home within 5 years.
Use the normal approximation and the mean and standard deviation you found above to find the probability that more than 20 of the recent first-time home buyers plan to upgrade to a bigger home within 5 years. Leave your answer as a decimal with 4 decimal places.

destinyleisantos   ·   09.04.2020 19:42
ANSWER(S)
26.06.2019 08:30
Bc equals mb that should be your answer
answered: toot8255
26.06.2019 01:20

step-by-step explanation:

this is not a question

answered: drippyc1363
23.06.2019 04:20
The vertex of the quadratic function is (1.5, -.75)
answered: starboy3506
01.07.2021 16:05
Plants grow biger by sunlight and shade and water
answered: 22MadisonT
01.07.2021 16:05

See answers below

Step-by-step explanation:

# prior

mu0 <- 5

k0 <- 1

s20 <- 4

nu0 <- 2

# read in data

dat <- list()

dat[1] <- read.table("school1.dat")

dat[2] <- read.table("school2.dat")

dat[3] <- read.table("school3.dat")

n <- sapply(dat, length)

ybar <- sapply(dat, mean)

s2 <- sapply(dat, var)

# posterior

kn <- k0 + n

nun <- nu0 + n

mun <- (k0 * mu0 + n * ybar)/kn

s2n <- (nu0 * s20 + (n - 1) * s2 + k0 * n * (ybar - mu0)^2/kn)/nun

# produce a posterior sample for the parameters

s.postsample <- s2.postsample <- theta.postsample <- matrix(0, 10000, 3, dimnames = list(NULL,  

   c("school1", "school2", "school3")))

for (i in c(1, 2, 3)) {

   s2.postsample[, i] <- 1/rgamma(10000, nun[i]/2, s2n[i] * nun[i]/2)

   s.postsample[, i] <- sqrt(s2.postsample[, i])

   theta.postsample[, i] <- rnorm(10000, mun[i], s.postsample[, i]/sqrt(kn[i]))

}

# posterior mean and 95% CI for Thetas (the means)

colMeans(theta.postsample)

## school1 school2 school3  

##   9.294   6.943   7.814

apply(theta.postsample, 2, function(x) {

   quantile(x, c(0.025, 0.975))

})

##       school1 school2 school3

## 2.5%    7.769   5.163   6.152

## 97.5%  10.834   8.719   9.443

# posterior mean and 95% CI for the Standard Deviations

colMeans(s.postsample)

## school1 school2 school3  

##   3.904   4.397   3.757

apply(s.postsample, 2, function(x) {

   quantile(x, c(0.025, 0.975))

})

##            school1 school2 school3

## 2.5%    2.992   3.349   2.800

## 97.5%   5.136   5.871   5.139

answered: lilytimpsonx
01.07.2021 16:05

Q.1 word connotation means none of the above, here is the definiton of word connotation: ''A connotation is a commonly understood cultural or emotional association that some word or phrase carries, in addition to its explicit or literal meaning, which is its denotation. A connotation is frequently described as either positive or negative, with regard to its pleasing or displeasing emotional connection.''

Q.2 Energetic

Q.3 should be BOLD

Q.4 This phrase emphasizes how embarrassed Jessica feels.

Q.5 option C.

Q.6 option B.

Q.7 option C.

Q.8 option A

jesus i better get brainliest for this, also u should more points when putting multiple questions. Anywho i hope i helped.

Explanation:

answered: drinkinwater
01.07.2021 16:05

Q.1 word connotation means none of the above, here is the definiton of word connotation: ''A connotation is a commonly understood cultural or emotional association that some word or phrase carries, in addition to its explicit or literal meaning, which is its denotation. A connotation is frequently described as either positive or negative, with regard to its pleasing or displeasing emotional connection.''

Q.2 Energetic

Q.3 should be BOLD

Q.4 This phrase emphasizes how embarrassed Jessica feels.

Q.5 option C.

Q.6 option B.

Q.7 option C.

Q.8 option A

jesus i better get brainliest for this, also u should more points when putting multiple questions. Anywho i hope i helped.

answered: cadenhuggins2
01.07.2021 16:05

He gets less buying the two big bags

Step-by-step explanation:

answered: HahaHELPP
01.07.2021 16:05

3 bag is better

Step-by-step explanation:

01.07.2021 16:05

-4

Step-by-step explanation:

-4 would be larger than -5 because negative numbers get smaller the farther they are from zero.

answered: ghimiren7443
01.07.2021 16:05
6.6. ans. is 2
21. and is
01.07.2021 16:05
51/12 is the smallest
answered: klawess4
01.07.2021 16:05
1/3 is the biggest, 1/4 is the 2nd biggest,  and 5/12 is the smallest.

Other questions on the subject: Mathematics

12.0 million metric tons of beef produced annually in the u. s. out if 65.1 mikkion metric tons of produced annually worldwide...
Mathematics
22.06.2019 01:30
1 answer(s)
(co 3) the soup produced by a company has a salt level that is normally distributed with a mean of 5.4 grams and a standard deviation of 0.3 grams. the company takes readings of ev...
Mathematics
22.06.2019 01:40
2 answer(s)
Alexandra drove from michigan to colorado to visit her friend. the speed limit on the highway is 70 miles per hour. if alexandra's combined driving time for the trip was 14 hours h...
Mathematics
22.06.2019 02:00
Explain how to graph a scatterplot and its regression line using a regression calculator....
Mathematics
22.06.2019 02:50
3 answer(s)
(co 3) the times that customers spend in a book store are normally distributed with a mean of 39.5 minutes and a standard deviation of 9.4 minutes. a random sample of 25 customers...
Mathematics
22.06.2019 03:10
1 answer(s)
Which graph correctly shows the solution of the compound inequality 4x < 16 or 11x > 121? -2 0 2 4 6 8 10 12 14 10 -2 0 2 4 6 8 10 12 14 lll0 -2 0 2 4 6 8 10 12 14 -2 0 2...
Mathematics
22.06.2019 04:40
What’s a definition for a polygon inscribed in a sphere ?...
Mathematics
22.06.2019 05:00
Aubrey read 29 books and eli read 52 books what number equals to the number of books aubrey read...
Mathematics
22.06.2019 05:00
1 answer(s)
The sum of two numbers is 17 and their different is 5. find one' answers...
Mathematics
22.06.2019 05:50
2 answer(s)
Triangle abc has vertices a(1,2) b(1,5) and c(4,2) and for two and undergoes a transformation circle the set of verses that does not belong...
Mathematics
22.06.2019 06:00
What is the range of the data in this stem-and-leaf plot? 2 14 19 32.5 stem and leaf plot. vertical line separates each stem from its first leaf. first row. stem 2. leaves 6, 7, 7...
Mathematics
22.06.2019 10:00
3 answer(s)
Look at problem 3. if the price of gallon of gas was $2.59 on friday morning before the change in price what was the price of gallon of gas on saturday explain how you know...
Mathematics
22.06.2019 10:00
1 answer(s)
Top questions today