Day Care Tuition A random sample of 51 four-year-olds attending day care centers provided a yearly tuition average of $3922 and the population standard deviation of $635. Part 1 of 2 Find the 90% confidence interval of the true mean. Round your answers to the nearest whole number. $3776 μ< $ 4068 Part: 1 / 2 Part 2 of 2 If a day care center were starting up and wanted to keep tuition low, what would be a reasonable amount to charge? Round your answer to the nearest hundred. would be a reasonable amount to charge. X

Q: Alzheimer’s disease increases in frequency with an increase in age and is responsible for deficits…

A: It is given that 10% of Am's over the age of 65 have A's disease.

Q: Based on the information in the table, answer the following questions (a – d) and ensure to show…

A: Given the data table as

Q: 2.7-3. Customers arrive at a travel agency at a mean rate of 11 per hour. Assuming that the number…

A: We have given that

Q: 2.7-5. Flaws in a certain type of drapery material appear on the average of one in 150 square feet.…

A: Flaws in a certain type of drapery material appear on the average of 1 in 150 square feetFor 1…

Q: The combined SAT scores for the students at a local high school are normally distributed with a mean…

A: For the normally distributed combined SAT scores, it is given that,The mean, μ=1516And the standard…

Q: Identify the range, variance and standard deviation based from the data below. Please show complete…

A: Given,cholesterol data in 71 participants.To find the range, variance, and standard deviation.

Q: The following table provides a frequency distribution for the number of rooms in this​ country's…

A: Note:- "Since you have posted a question with multiple subparts we will provide solutions only to…

Q: Assume that we estimated the following model by OLS:     y =β₁ + β₂x + u. The sample size of the…

A: The standard error for  is 2 and the estimate for  is 5.

Q: which alternative hypothesis is appropriate for this test. Ο HA: μι # μ2,t*= -2.021 Ο HA: μι <…

A: The sample size for left-handed is 41 and the sample size for right-handed is 41.

Q: Describe what is misleading in the visual display of data below. World Population, in Billions…

A: From the above diagram, we can see how the World population has increased from year to year. Since…

Q: A health psychologist was interested in women's workout preferences. Of the 56 participants…

A: The population of interest is the women who workout.To test:Null hypothesis: There is no difference…

Q: 9. The 68-95-99.7 Rule. A set of test scores is normally distributed with a mean of 100 and a…

A: Note: As per our guidelines we are supposed to answer only 3 sub-parts of any question so I am…

Q: A random sample of 16 pharmacy customers showed the waiting times below (in minutes). 17 15 18 27 16…

A: From the provided information,n = 16Confidence level = 90%

Q: OGIVE curve depicting the grouped data

A: The grouped frequency distribution of the data is given below.Interval fCumulative…

Q: Freshmen GPAS First-semester GPAS for a random selection of freshmen at a large university are…

A: We given data…

Q: You have taken a random sample of size n = 12 from a normal population that has a population mean of…

A: The question is about confidence interval.Given :Mean of the population (  ) = 90Standard deviation…

Q: In a recent year, the scores for the reading portion of a test were normally distributed, with a…

A: Let X be the score for the reading portion of the test.

Q: What is the midpoint of class 7-11?  A) 9.5 B) 9 C) 5 D) 4

A: From the provided information,The class is 7-11.Upper limit = 11Lower limit = 7

Q: The monthly utility bills in a city are normally distributed, with a mean of $100 and a standard…

A: Mean()=100standard deviation()=15

Q: You want to obtain a sample to estimate the proportion of a population that possess a particular…

A: The confidence level is 98% and the margin of error is 5%.

Q: Consider the following table containing the betting spreads and actual spreads from 15 randomly…

A: The given data is as follows: Betting vs Actual…

Q: The population proportion is 0.45. What is the probability that a sample proportion will be within…

A: Given,Population proportion, p = 0.45We need to find the probability that a sample proportion will…

Q: An agriculture publication claims that the population mean of the birth weights for all Herdwick…

A: The given information is,Number of SheepSample meanSample standard deviationPopulation standard…

Q: Private nonprofit four-year colleges charge, on average, $27,915 per year in tuition and fees. The…

A: It is given that the distribution is normal. The mean is $27,915 and the standard deviation is…

Q: The following data set shows the heights in inches for the boys in a class of 40 students. 66; 66:…

A: A box plot helps in understanding the distribution of the data

Q: Consider an AR(2) time series model of growth in real per capita GDP is given as:…

A: Consider an AR(2) time series model of growth in real per capita GDP is given…

Q: researcher wants to know if a treatment significantly changes the wellbeing of someone with…

A: The effect size can be interpreted as the magnitude of the change in wellbeing due to the treatment.…

Q: Suppose that you have the following fitted value: log Income; = 3.2145 + 0.1343 × log Expi (0.0195)…

A: The fitted regression model is:log Incomei^=3.2145+0.1343×log ExpiHere the dependent variable "log…

Q: Section 2. Assume again that you are a wildlife biologist studying morphological cha turtles. Now…

A: Sample size n=36Sample mean=99Sample standard deviation=16

Q: You have taken a random sample of size n=85 from a normal population that has a population mean of u…

A:

Q: Hurricanes Katrina and Rita caused the flooding of large parts of New Orleans, leaving behind large…

A:

Q: 1. Fix r € N, and suppose that Y₁,..., Yn are independent and identically distributed NegBin(r, )…

A: Fix , and suppose that Y1,......................................, Yn are independent and identically…

Q: What is the similarities between conditional probability and the multiplication rule

A: Conditional probability is the probability of an event occurring given that another event has…

Q: Sure Stone Tire Company has established that the useful life of a particular brand of its automobile…

A: Mean()=40,000Standard deviation()=5000

Q: What proportion of cars are driving between 75 and 85 miles per hour?

A: We have given that

Q: You are given the following information for a fitted GLM: Response variable Response distribution…

A: From the given table,response variable is Claim countLink is log.Therefore, the GLM model is,

Q: est scores followed a near-normal distribution of ????? ~ ?(47, 2). What percentage of scores are…

A: In a normal distribution, approximately 68% of the data falls within 1 standard deviation of the…

Q: Which type of confidence interval should you use in this situation? An economics professor randomly…

A: n=sample size=100, X¯=54.8,s=7.9

Q: P(3<Y <5 | X= 2) = (Simplify your answer.)

A: Here given joint probability distribution of random variable x and y.

Q: In a particular country, the height measurements of ten-year-old children are approximately normally…

A: The provided information is as follows:The height measurements of 10-year-old children are…

Q: The percent of fat calories that a person in America consumes each day is normally distributed with…

A: Let X=percent of fat caloriesMean=38 and standard deviation=10

Q: A researcher wants to know if a treatment significantly changes the wellbeing of someone with…

A: Due to bartleby policy I can solve only three subpartsIf a therapy for depression substantially…

Q: Frequency tables Age of Individuals: 22, 28, 35, 28, 40, 32, 22, 38, 26, 35, 30, 24, 28, 32, 40, 38,…

A: The age of individuals is given as follows:…

Q: Section 2. Assume again that you are a wildlife biologist studying morphological characteristics of…

A: Sample size n = 36Sample mean x¯ = 99 cmSample standard deviation s = 16 cmConfidence level =…

Q: Suppose that you have designed a new machine learning model for a binary classification task and…

A: Suppose that you have designed a new machine learning model for a binary classification task and…

Q: Question list O Question 6 Question 7 Question 8 O Question 9 K The values listed below are waiting…

A: The given data is as follows: Bank ABank…

Q: You are a data analyst for a health insurance company and want to estimate the population mean of…

A: The number of patients is 32.

Q: Suppose that X1, X2, X3 are independent with the common probability mass function: P{Xi = 0} = 0.2,…

A: Let X1,X2,and X3 be independent random variables with the common probability mass function (PMF)…

Q: The variables in our dataset include the college grade point average (colGPA), high school GPA…

A: The regression equation for estimating the college GPA of a student is given as:col GPA=β1+β2hs…

Q: Thickness measurements of ancient prehistoric Native American pot shards discovered in a Hopi…

A: Mean()=4.8Standard deviation()=1.6