The average amount of money spent for lunch per person in the college cafeteria is $7.33 and the standard deviation is $2.2. Suppose that 13 randomly selected lunch patrons are observed. Assume the distribution of money spent is normal, and round all answers to 4 decimal placeswhere possible. a. What is the distribution of X? X - N 7.33 2.2 88 b. What is the distribution of ? N 7.33 ✓0.6102 ✓ c. For a single randomly selected lunch patron, find the probability that this patron's lunch cost is between $8.0247 and $8.4798. d. For the group of 13 patrons, find the probability that the average lunch cost is between $8.0247 am $8.4798. normal necessary? Not of e. For part d), is the assumption that the distribution

Q: IQ scores are often reported to be normally distributed with a mean of 100.0 and a standard…

A:

Q: A sample of n = 49 scores is selected from a normal population with a mean of µ = 60 and a standard…

A: The mean is 60 and the standard deviation is 12.

Q: (a) A developer believes that the standard deviation of the house price is greater than RM230,000.…

A: Use the Excel and Calculate the Sample Mean and Sample Standard deviation

Q: b. The sample variance is an unbiased estimator of the population variance Is S² the MVUE of o2?…

A: b)Given that S2 is an unbiased estimator of population variance σ2.i.e., E( S2)=σ2Given that, Sample…

Q: If A and B are in Golden Ration, then is equal to B a. 0.618 b. 0.816 c. 1.608 d. none of these a b…

A:

Q: In order to estimate the mean 30-year fixed mortgage rate for a home loan in the United States, a…

A: GivenMean(x)=7.10%standard deviation(σ)=0.5%sample size(n)=25

Q: 6. The effects of two catalysts on the mean yield of a chemical process are being investigated. UA…

A: We have given that, the Claim difference is there is difference between the mean yields from the two…

Q: probability that this sample will have an average score between 21 and 26?

A: Given Data : Population Mean,μ = 25 Population Standard Deviation,σ = 6.5

Q: In the context of a one-sample t-test, what is the estimated standard error, sm, for a sample size…

A:

Q: QUESTION 25 Determine pand o from the given parameters of the population and the sample size. Round…

A: Given Data : Population Mean,μ = 54 Population Standard Deviation,σ = 32 sample…

Q: single factor design and an example of a factorial design. Provide the independent variable (IV)…

A: The basic principle of the Analysis of variance is to test the difference among the means of the…

Q: What is the probability of observing leukemia remission when the cellularity of the marrow clot…

A: Solution: Given  lnπ(y=1)1-π(y=1)=-2.88+3.08CELL-2.5INFIL The estimated logistic regression equation…

Q: Test the hypothesis using the P-value approach. Be sure to verify the requirements of the test. Ho:…

A: Given data number of success , x= 390 sample size, n =500 population proportion,p=…

Q: Here's a table with average monthly price of a stock from Jan 2021-July 2021. Month Price Jan 29000…

A:

Q: In Table B - Random Digits, each digit in the list of 9000 is equally likely to be 0, 1, 2, 3, 4, 5,…

A:

Q: 1. By predicting fertility and divorce rates as well as life-styles economic, demographers attempt…

A: The question is about to find missing relative frequency Given :

Q: Is this the specificity or negative test result?

A: here given table  Let the variable X be someone's disease status X = D then someone has strep…

Q: A parametrical statistical test is one that makes assumptions about the parameters that define the…

A: here use basic definition of parametric statistical test  parametric test evaluate hypothesis test…

Q: 0.064. At a = 0.005, is there enough evidence to reject the claim?

A: HERE GIVEN , sample variance  = s2 =  0.064 sample size  n = 28  significance level = 0.005

Q: Every fuzzy set A can be expressed as the union of all the fuzzy points which Belong to A O Non all…

A: Fuzzy set can have values which doesn't precisely meet the criteria but are approximately close.

Q: You wish to compute the 95% confidence interval for the population proportion. How large a sample…

A: The provided information is  α=0.05 E=0.05 The critical value is  z=1.96  (from statistical table)…

Q: 1. Construct a 90% confidence interval for the proportion of employees requiring size 3.

A: here given  A civil engineering firm issues every new employee with a safety helmet. Four different…

Q: Suppose that the lifetimes of a certain kind of light bulb are normally distributed with a standard…

A: Given,standard deviation(σ)=100

Q: The high temperature xx (in degrees Fahrenheit) on January days in Columbus, Ohio, varies according…

A:

Q: To check the normality test using shapiro-wilk , if the p value is below 0.05? A. Failed to reject…

A: Solution-: To check the normality test using Shapiro-wilk, if the p value is below 0.05? (A) Failed…

Q: with a mean of µ = 70 and a standard deviation of σ = 10, what is the probability of obtaining a…

A: Given Data : Population Mean,μ = 70 Population Standard Deviation,σ = 10

Q: Relevant Relationship: There is a functional relationship between Price of an IPod Touch,p and…

A: Given data: Price (p) Weekly Demand (s) 150 210 170 203 190 199 210 183 230 185 250…

Q: 24.  In an experiment, participants were shown three of the famous Rorschach “inkblot” images, each…

A:

Q: A group of students wrote an entrance Math exam and the scores were normally distributed. The mean…

A: The scores were normally distributed with mean 750 and standard deviation 95 μ=750σ=95 Z-score is…

Q: Use the normal distribution and the given sample results to complete the test of the given…

A: Given that  Level of significance (α) = 5% = 0.05 Null hypothesis H0 : p=0.5 Alternative hypothesis…

Q: A survey of a 117 randomly selected students at 1 college show that 90 check their campus email…

A:

Q: A box in a certain supply room contains three 40-W lightbulbs, five 60-W bulbs, and seven 75-W…

A: Given data: 3 = 40-W lightbulbs, 5 =  60-W bulbs, and  7 =  75-W bulbs. Suppose that three bulbs are…

Q: Recall the method used to obtain a confidence interval for the differ samples. (a) The following…

A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: In order to estimate the difference between the average Miles per Gallon of two  different models of…

A: Independent samples t-test is done to test the significance difference between population means.

Q: The Credit Risk Department of a major bank estimates the default rate on loans under $10,000 to be…

A: Given data: Proportion  = 1% = 0.01 Sample size (n) = 1100

Q: A survey was conducted of newlyweds in a country who have a spouse of a different race or ethnicity…

A: Consider that p1 is the true proportion of newlyweds of Ethnicity A who have a spouse of a different…

Q: Suppose that 16% of the population of the U.S. is left-handed. If a random sample of 175 people from…

A: Given n=175 P=0.16

Q: Direction: Calculate Spearman's coefficient of rank correlation for the following. Describe the…

A: The question is about correlation Given : 1 )   2 )

Q: The increasing annual cost (including tuition, room, board, books, and fees) to attend college has…

A: Given: n1 = 10 n2 = 12 Formula Used: Sample mean X = ∑Xin  Sample standard deviation s = ∑(Xi-X)2n-1…

Q: A small regional carrier accepted 13 reservations for a particular flight with 12 seats. 6…

A:

Q: Risk taking is an important part of investing. In order to make suitable investment decisions on…

A:

Q: Consider the null hypothesis Ho: The man is innocent of crime. Ha: The man is guilty of crime. What…

A: here given null and alternate hypothesis  Ho: The man is innocent of crime. Ha: The man is guilty of…

Q: The variable xx denotes the time taken in seconds for a computer link to be made between the…

A:

Q: A newborn baby is classified as having Extremely Low Birth Weight (ELBW) if it weighs less than 1000…

A: Consider that the mean and standard deviation of a random variable X are µ and σ, respectively.…

Q: A fuzzy point PE int (A) if and only if P has a

A: Fuzzy Point A fuzzy set in a set X is called a fuzzy point if it takes the value 0 for all y ∈ X…

Q: Problems 18 – 22 Data for the days of rain in June from past years for three different states are…

A: List of formula :  F ratio= MSBMSW Where ,  MSB= ∑∑xi2ni- ∑xTOT2Nk-1 MSW = ∑∑xi2-∑xi2niN-k

Q: Do men take a different amount of time than women to get out of bed in the morning? The 51 men…

A:

Q: The scores for a certain standardized test have a population mean of μ=285 with a population…

A:

Q: A survey about timekeeping might divide the population by time zone, then take 100 random samples…

A: Solution: Stratified random sampling:  Stratified random sampling is a type of probability or random…

Q: Which of the following statem OF95,10,20= 1/F 95,20,10 OF 95.10.20=1/F05,20,10 OF.05,10,20= 1/F…

A: We know that the  If F ~ F(m,n) distribution, then  F-1 = 1/F ~ F(n,m) and the level of…