Suppose that in the past years the average price per square foot for warehouses in Subic has been P32.28. A national real estate investor wants to determine whether that figure has changed now. The investor hires a researcher who randomly samples 19 warehouses that are for sale across Subic and finds that the mean price per square foot is P31.67, with a standard deviation of P1.29. If the researcher uses a 5% level of significance, what statistical conclusion can be

Q: 1) A company reports that the mean weight of yearling Angus steers is 1152 pounds with a standard…

A: We have given that  X~N(mu, sigma^2) mu=1152 ,sigma =84 Z-score =(x-mu )/sigma    Note :-According…

Q: Suppose that grade point averages of undergraduate students at one university have a bell-shaped…

A: Given, grade point averages of undergraduate students at one university have a bell-shaped…

Q: 5. The average cell phone lifespan, according to a new research, is 24.3 months. It takes 2.6 months…

A:

Q: 2. The average time spent sleeping (in hours) for a group of medical residents at a hospital can be…

A: Given that  X~N(μ= 6.1 , σ= 1) μ= 6.1 , σ= 1 Formula for Z-score Z=(X-μ)/σ

Q: Suppose that the quarterly sales levels among health care information systems companies are…

A: Given Data: Let X represent the random variable Mean=9 Standard deviation=1.1 X~ Normal (9, 1.12)…

Q: Suppose that the quarterly sales levels among health care information systems companies are…

A: Given data,Mean μ=11sd      σ=1.2P(X<x)=20%x=?

Q: 3. A researcher compared the costs of two cars with similar features made by two manufacturers. For…

A: Given that We have to test hypothesis for the claim that the difference between the mean cost for…

Q: Suppose the life span of a calculator manufactured by Texas Instruments has a normal distribution…

A:

Q: Anna scored 80 in both Course A and Course B. Course A had a mean of 70, and standard deviation of…

A:

Q: If gasoline in a certain part of the country has a mean price of $1.62 per gallon and a standard…

A: From the given information, Mean = $1.62 gallon Standard deviation =8 cents =$0.08 gallon (since 100…

Q: STEP ONE: STEP TWO: STEP THREE: STEP FOUR: STEP FIVE: STEP SIX: Test Statistic: Critical Value(s):

A: n1 = 123 n2 = 290   x1 = 0.83 x2 =1.39   s1 = 1.77s2 =3.06

Q: Suppose the life span of a calculator manufactured by Texas Instruments has a normal distribution…

A:

Q: Suppose the average golfer drives the ball around 225.55 yards with a standard deviation of 8.82.…

A: Assume that the random variable x denotes the distance of balls drove by the golfer.

Q: A banker finds that the number of times people use automated-teller machines (ATMs) in a year are…

A: Solution-: Given:μ=40,σ=11.2 We want to find  the proportion of customers who use ATMs between 30…

Q: Suppose that grade point averages of undergraduate students at one university have a bell-shaped…

A: According to the given information, we have Mean = 2.55 Standard deviation = 0.43 Given that the…

Q: Suppose a new Director of Health Services for a district claims that she will reduce the average…

A: The one sample t-test is performed in MINITAB for the given data.Step-by-step procedure to perform…

Q: If an espresso machine out-pour is normally distributed with the mean of 0.9 ounces and standard…

A: Let  X be the random variable from normal distribution with mean (μ) = 0.9 and standard deviation…

Q: Suppose that the quarterly sales levels among health care information systems companies are…

A: Given data,Mean μ=9 million dollarssd     σ=1.1 million dollarsP(X<x)=15%x=?

Q: Suppose the birth weights of babies in a particular country are normally distributed with a mean of…

A: Answer:

Q: If the average wait time is 12 minutes with a standard deviation of 3 minutes, determine the…

A: Given : Average wait time =12 minutes Standard deviation =3 minutes We have to calculate percentage…

Q: Suppose that the quarterly sales levels among health care information systems companies are…

A: mean=8 standard deviation=1.1

Q: Suppose the mean height of women age 20 years or older in a certain country is 62.7 inches. One…

A: We have given that The null and alternative hypothesis are H0 : µ = 62.7Ha : µ ≠ 62.7 The test…

Q: Suppose that the quarterly sales levels among health care information systems companies are…

A:

Q: Determine the sales level (in millions of dollars) that is the cutoff between quarters that are…

A: Suppose that the quarterly sales levels among health care information systems companies are…

Q: Suppose that the quarterly sales levels among health care information systems companies are…

A: Given Information: Suppose that the quarterly sales levels among health care information systems…

Q: A government agency provides the number of miles that residents of the 75 largest metropolitan areas…

A: (a)   Obtain the point estimate of the difference between the mean number of miles that City A…

Q: banker finds that the number of times people use automated-teller machines (ATMs) in a year are…

A: We have given Mean(µ) = 40Standard deviations (σ) = 11.2X ~ N (µ, σ )= N(40, 11.2)

Q: Suppose that grade point averages at one university have a bell-shaped distribution with a mean of…

A: Let, X denote the grade point average.It is given that:X follows the bell-shaped distribution with…

Q: 4) In 2015, the mean household expenditure for energy was $ 1493 according to data published by the…

A:

Q: Suppose that grade point averages of undergraduate students at one university have a bell-shaped…

A: Solution let X: grade point of undergraduate students with a mean of 2.61 and a standard deviation…

Q: The number of peas in a pod varies from farm to farm. In a random sample of 50 pods from farm A,…

A: Given Information: The random sample of size from farm A, n1=50 The sample mean of peas per pod in…

Q: Suppose that the quarterly sales levels among health care information systems companies are…

A: Solution

Q: Suppose the mean height of women age 20 years or older in a certain country is 62.7 inches. One…

A: The claim is that the mean heigh of women in the city differs from the national mean.

Q: uppose that the quarterly sales levels among health care information systems companies are…

A: Suppose that the quarterly sales levels among health care information systems companies are…

Q: A banker finds that the number of times people use automated-teller machines (ATMs) in a year are…

A: The mean is 40 and the standard deviation is 11.

Q: (a) What is the probability that the mean cholesterol level of the sample will be no more than 206?…

A: Here given ,  sample size n = 40 population mean = 206  population standard deviation = 35

Q: ccording to the us census bureau the number of people in a household has mean of 2.6 and a standard…

A: Given, According to the us census bureau the number of people in a household has mean of 2.6 and a…

Q: Imagine that every elementary school in California is measured on several characteristics and then…

A: From the provided information, Mean (µ) and standard deviation (σ) of the school in Los Angeles…

Q: Suppose that the quarterly sales levels among health care information systems companies are…

A: Given information- Population mean µ = 8 million Standard deviation σ = 1.1 million Z = -1.2816…

Q: Suppose a small paint manufacturing company has a daily production that is normally distributed with…

A:

Q: A banker finds that the number of times people use automated-teller machines (ATMs) in a year are…

A:

Q: Suppose the scores of students on an exam are normally distributed with a mean of 253 and a standard…

A: From the provided information, Mean (µ) = 253 Standard deviation (σ) = 80

Q: A manufacturer of bolts has a​ quality-control policy that requires it to destroy any bolts that are…

A: Given :Population mean length (  ) = 10 cm.Population standard deviation of length (  ) = 0.05 cm.