The distribution of the number of gallons of water used for taking a shower in the United States are skewed right. Some people take long showers using as much as 63 gallons compared to the average of 17.2 gallons. A conservationist is interested in the mean number of gallons of water used in college apartments housing 4 students. Assuming a standard deviation of 4.2 gallons for

Q: The U.S. Center for Disease Control reports that in year 1900, the mean life expectancy is 47.6…

A: Given  nw=117, x¯w=46.7 and  sw=11.4 And           nnw=86, x¯nw=38.4 and  snw=15.4

Q: A report about how American college students manage their finances includes data from a survey of…

A: Population mean = ? = 907 Sample S.D = s =205 Sample size = n =500 Sample mean = x̅ = 825

Q: c. Find the p-value. Round to 4 decimals. p-value = d. Make a decision. O Fail to reject the null…

A: Given : Mean : x1 = 46.9x2 = 36.2 standard deviation : σ1 = 12.4σ2 = 15.3 Sample size : n1 = 124n2 =…

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Q: According to the Carnegie unit system, the recommended number of hours students should study per…

A: Hey there! As per our policy we can answer only 3 sub-parts at a time. Please make a new request for…

Q: A certain dataset has the following values: Mean = 40; Median = 30; Mode = 30 What is the shape of…

A: It is an important part of statistics . It is widely used .

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Q: note population with a Normal distribution has an average of 50 and a variance of 100. How many…

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Q: community college Math instructor feels that the average number of units students enroll in each…

A: Hypothesis testing  Hypothesis testing is conducted for the parameters of the population like…

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A: The appropriate null and alternative hypotheses are given below: Here, µ is the true mean balance.…

Q: A Food Marketing Institute found that 28% of households spend more than $125 a week on groceries.…

A: given data  p (spend more than $125) = p = 0.28 n = 235 P(p^<0.31) = ?

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A: Note:- As per our policy, we answer only 3 sub-parts at a time. Please make a new request for the…

Q: For this study, we should use     The null and alternative hypotheses would be:       �0:…

A: As per guidelines i have calculated 3 subparts plz repost for remaining with note i need this this…

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Q: According to the Carnegie unit system, the recommended number of hours students should study per…

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Q: A researcher gathered data on five randomly selected individuals from a data set. The ages are 25,…

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A: 0.33271Explanation:For the given normal distribution with μ=26.8 and σ=7.4, the required proportion…

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A: White:Sample size Sample mean Sample standard deviation Non-whites:Sample size Sample mean Sample…

Q: one study, bDrain weig men are ormally distributed wiLI kg and dala to answer parts (a) Click here…

A: According to a study, the brain weight of men is Normally distributed with a mean of 1.10 kg and a…

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.