A Food Marketing Institute found that 25% of households spend more than $125 a week on groceries. Assume the population proportion is 0.25 and a simple random sample of 498 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 0.28? 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.)

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A: number of samples, n = 330 true proportion, p = 0.05 Let, p^ be the sample proportion.  Hence p^…

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A: Solution: It is given that, Population mean, 70 Standard deviation, 5 Given that Cody took his first…

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A: The question is about sampling distribution.Given :Selected no. of crew members ( n ) = 20Population…

Q: If it is known that the percentage of successful students is 75%, and you take a sample of 15…

A: Givenp=0.75n=15Let "x" be the no.of successful bears x~Binomial(n=15,p=0.75)P(X=x)=(nx)(p)x(1-p)n-x…

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

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

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Q: A sample has SS= 20 and s2 =4. How many scores are in the sample?

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Q: We are asked to find the values that separate the middle 60% of the population from the top and…

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Q: find the value between z score -2.9 and 1.5287

A: To find: Find the value between z score -2.9 and 1.5287

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

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A: Given: The percentage of successful students is 75% Sample size n=15

Q: Q.No.2. (a) Define the following terms of Statistics in your own words and explain with suitable…

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Q: Find the critical value. The critical value is zo =. %3D

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Q: In a recent survey of high school students, it was found that the average amount of money spent on…

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Q: Find the probability that the mean for 20 randomly selected distances is greater than 195.70 cm.

A: Given that.   X~N( μ , ?)   μ=197.5     , ?=8.9   Z-score =( x - μ )/?

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Q: I need to find the indicated probability for a Mean of 24, an SD of 4.2. P(x > 30)

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

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Q: Q6- Assume the probability that a maple tree at age 5 grows less than 140 cm is equal to 0.2. If the…

A: Given Data: Let X represent the height of the maple tree P(x<140)=0.2 σ=81=9

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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.