A Food Marketing Institute found that 33% of households spend more than $125 a week on groceries. Assume the population proportion is 0.33 and a simple random sample of 383 households is selected from the population. What is the probability that the sample proportion of households spending more than $125 a week is less than 0.3? Note: You should carefully round any z-values you calculate to 4 decimal places to match wamap's approach and calculations. Answer =  (Enter your answer as a number accurate to 4 decimal places.)

Q: A geneticist conducts an experiment with beans, one sample of offspring consisted of 457 green beans…

A: Given,no.of green beans=457no.of yellow beans=164Total no.of beans=621

Q: 1. During flu season, there is a 7% chance of catching the flu. In a sample of 30 individuals, find:…

A: Proportion of chance that catching flu(p)=007sample size(n)=30

Q: The amount of time that people spend at Grover Hot Springs is normally distributed with a mean of 79…

A: (a)   Determine the distribution of X.   The distribution of X is determined below as follows:

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Q: A geneticist conducts an experiment with beans, one sample of offspring consisted of 449 green beans…

A:

Q: The mea Of male College Students io alarge City Is 68nes is 68ncnes Cnd the Standard deviation of 5…

A: Solution Let X: Height of student X~N((μ=68, σ=5) Find the probability that students height between…

Q: 4. Assume, you throw (shot) a basketball until you make the basket r times. Assume, your chance of…

A: Consider the following notations, X=number of successesp=probability of single successq=probability…

Q: 2. The level of cholesterol in the blood of Alaskan wornen aged 35 to 55 follows a Normal…

A: Given that level of cholesterol in the blood of Alaskan women aged 35 to 55 follows normal…

Q: Use the blood Alcohol Concentration chart to determine the likelihood a 140 pound (lbs) female will…

A: Solution: Given data, R = 6e (12.77x)

Q: Spending on concessions at the movies varies by age of the movie goer. A random sample of 100 adults…

A: It is given that the random sample of 100 adults, 70 purchased popcorn in their 40’s. Another sample…

Q: Cody took his first physics exam and scored an 80. The population mean for this exam is 70, and the…

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Q: 4. On a certain standardized test, the population mean is 250 with a standard error of the mean of…

A: Given: Population mean, μ=250Standard error of mean, σx¯=25

Q: In a recent year, Delaware had the highest per capita annual income with  $51,803 . If  =σ$4850 ,…

A: Given : Population mean : μ=51803 Population standard deviation : σ=4850 Sample size : n=39

Q: The probability that an individual is right-handed is 0.87. In a class of 100 students, what is the…

A:

Q: A social media survey found that 74​% of parents are​ "friends" with their children on a certain…

A: Hi! Thank you for the question, as per the honor code, we are allowed to answer three sub-parts at a…

Q: A geneticist conducts an experiment with beans, one sample of offspring consisted of 455 green beans…

A: Solution-; Given: Number of green beans =455           Number of yellow beans =141           Total…

Q: If a probability or 2 place decimal like area is found to be 077 or - 1.09 0.4377, what is the z…

A:

Q: there is 70% chance they should hit atleast how many pitches this season?

A: Given that, there is 70% chance they should hit.

Q: Q5. The mean and standard of the weights of identical concrete specimens are 150 and 45 lb…

A: GivenMean(μ)=150standard deviation(σ)=45sample size(n)=50

Q: Assume the probability that a maple tree at age 5 grows less than 130 cm is equal to 0.1. If the…

A:

Q: 2. The level of cholesterol in the blood of Alaskan women aged 35 to 55 follows a Normal…

A: Given : The following information has been provided: μ=188, σ=41.5\mu = 188, \text{ } \sigma =…

Q: For a measure of  body weight, converted to z or standard scores, what is the probability of having…

A: Solution For standard normal distribution, Mean=0  & standard deviation = 1. Find:

Q: At the Fredericton High School it is estimated that at most 25% of the students ride bikes to…

A: Let, p = proportion of students who ride bikes to school

Q: Time spent using e-mail per session is normally distributed, with u = 14 minutes and o 3 minutes.…

A: In estimation of population means on the basis of sample means, there must be some error. The…

Q: .a Think of all the reasonable outcomes of X. How many possible outcomes does X have? Too many to…

A: Hey there! Thank you for posting the question. Since your question has more than 3 parts, we are…

Q: The distances golf balls travel under laboratory testing conditions are normally distributed. The…

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Q: The mean of childhood asthma prevalence in 43 cities is 2.32%. A random sample of 32 of these cities…

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Q: Solve the problem. Assume that mountain lions' weights are normally distributed with a mean of 62.6…

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Q: Sample SI2e On = 0.041. (Round to three decimal places as needed.) (d) In the sample obtained in…

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Q: The waiting time a customer spends in the airport luggage check-in is a random variable with mean…

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Q: researcher believes that 52.5% of people who grew up as the only child have an IQ score over 100.…

A: Given: Population proportion of people with IQ score over 100 is 50%; P=0.5 Sample size n=400

Q: If a fair coin is tossed 10 times what is the probabilty that the first five are the same side? Ans.…

A: When a coin is tossed, then there are 2 possible outcomes: Head and tail. So, each outcome can…

Q: A population distribution has o =6. What position in this distribution is identified bya z-score = +…

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Q: The weights of steers in a herd are distributed normally. The variance is 10,000 and the mean steer…

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Q: The Normal model N(150,10) describes the distribution of scores on the LSAT, a standardized test…

A: Solution : Given : X : Scores on the LSAT and X ~ N(150,10) i.e. μ = 150      σ2 = 10 a. Type of…

Q: In the 1992 presidential election, Alaska's 40 election districts averaged 2008 votes per district…

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.