37. The manager of Green Valley medical center claims that the median number of patients seen by doctors who work at the center is 85. To test this claim, 20 days are randomly selected and the number of patients seen is recorded as shown. At a=0.1, test the claim. (Use sign test) 86 82 90 88 85 85 94 93 69 61 89 90 91 94 78 85 71 77 69 77

Q: According to a Harvard Health Publishing article, the normal body temperature may be  lower than…

A:

Q: 3. In experiments on pea breeding, Mendal obtained the following frequencies of seeds : Round and…

A:

Q: central airlines claims that the median price of a round-trip ticket from chicago, illinois, to…

A: Sample size(n)=25 Median price=606 The number of tickets below $606 =11

Q: Suppose that in a large class at a major university, the instructor announces that the average grade…

A: Given information- We have given the average grade on an exam = 72 Since we know that from the…

Q: Suppose that the unemployment rate for 18- to 34-year-olds was reported to be 10.6%. Assume that…

A: Given, The unemployment rate for 18- to 34-year-olds was reported to be 10.6% based on a random…

Q: The mean age of bus drivers in Chicago is 54.5 years. What is the set of hypotheses that should be…

A: It is given that, the population mean is 54.4 years. We have to write the null and alternative…

Q: 2. The principal of the school claims that the main age of tne teachers is 48 years. The mean age of…

A:

Q: 4. A survey of 40 home prices in a metropolitan area has the following results. Price Less than…

A: (a). Test the hypothesis that the median price in the metropolitan is $200,000: Given data…

Q: Suppose that you conduct a hypothesis test for a proportion using a sample size of n=50 and you…

A: Answer: As sample increases  the p-value decreases.

Q: 32. According to the National Automobile Dealers Association, the mean price for used cars is…

A: x¯=∑i=1n xin=48750050=9750 Sample sd=s=∑i=1n xi-x¯2n=9603985050=1385.9282

Q: FILE The Thomas Supply Company Inc. is a distributor of gas-powered generators. As with any…

A: Given : Sample No Sample 1 13 2 13 3 13 4 20 5 26 6 27 7 31 8 34 9 34 10 34…

Q: Suppose that the frequency table below contains data on female life expectancy at birth in 91…

A: We have given the frequency table below contains data on female life expectancy at birth in 91…

Q: At the 0.01 significance level, can we conclude that there is a difference in the mean percent of…

A: The test to be carried out is- H0:μs=μe vs H1:μs≠μe The following measures are found for the given…

Q: Suppose the manager of a shoe store wants to determine the current percentage of customers who are…

A:

Q: According to a college​ survey, 22% of all students work full time. Find the mean for the number of…

A: Given information: Percentage of students that work full time = 22% The probability of success, that…

Q: 1. On the first day of finals, 20 students at La Platta College were selected at random. They were…

A:

Q: 18. Claim: µ # 52,200; a = 0.05. Sample statistics: x = 53,220, s = 2700, n = 34 %3D %3D

A: The provided sample mean is Xˉ=53220\bar X = 53220 and the sample standard deviation is s=2700s =…

Q: Consider college officials in admissions, registration, counseling, financial aid, campus ministry,…

A:

Q: A normal population has a mean of µ = 80 with σ = 20. a. If a single score is randomly selected…

A:

Q: Are our kids getting taller? The average height of kindergartners in 1950 was 39.5 in. The data…

A: From the given information, The average height of kindergartens in 1950 was 39.5. The sample data is…

Q: 4. The following represents the number of oranges produced last growing season by a random sample of…

A: As per our guidelines we are suppose to answer only first three subparts4)Given dat set…

Q: Previously, an organization reported that teenagers spend 12.5 hours per week, on average, on the…

A: Note: " Since you have asked multiple sub-parts, we will solve the first three sub-parts for you. If…

Q: The mean monthly salary of 32 men is 28,500 while that of 38 women is 24,400. Find the mean salary…

A: As per our guidelines we are suppose to answer only one questionGivenFor menMean(x1)=28500sample…

Q: 4. It has been found that 85.6% of all enrolled college and university students in the United States…

A: “Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: Suppose, you want to know, if majority of the people prefer chocolate ice-cream over all others…

A: Solution: Given information: Margin of error = E = 0.03 confidence level = 80%=0.80 Level of…

Q: 2.42 1.44 2.05 0.24 2.78 2.6 2.69 1.02 1.44 1.21 2.85 0.91 1.54 0.37 1.07 0.04 2.41 2.79 1.25 0.63…

A: We have used excel to compute the mean.  Following steps are used:-  1) Enter the data ( speed and…

Q: A company that sponsors LSAT prep courses would like to be able to claim that their courses improve…

A: A Test statistic: Initial Test Post Test d=Initial Test-Post Test 64 66 -2 68 63 5 62 71 -9…

Q: Use the CLT again to determine the probability that the mean taxable wages in James' sample of 50…

A: It is given that mean is 28.29 and the standard deviation is 33.493.

Q: As a Physical Education teacher of ADU, Sir Loui wants to compute for the Body Mass Index of few…

A: Given information: As a start, the following are the height of five students in meters. Jaeight-…

Q: a. If a constant c is added to each xi in a sample,yielding yi 5 xi 1 c, how do the sample meanand…

A:

Q: 3. A researcher estimates that the average height of buildings in terms of the number of storey in…

A: In hypothesis testing, the value of the test statistic is calculated from the sample observations.…

Q: As a Physical Education teacher of ADU, Sir Loui wants to compute for the Body Mass Index of few…

A: Given information: As a start, the following are the height of five students in meters. Jaeight-…

Q: 3. In a study of the relatic a sample of 180 college of comparable age and Estimate the difference…

A: Estimation is an important concept in statistics.

Q: 5. Final exam scores for a sample of 20 students in a managerial accounting class are shown. At the…

A: The exam scores of 20 students in two exams are given . The sample size is n1=20. The sample size is…

Q: If you wish to test the claim that the mean of the population is 100, the appropriate null…

A: Given, Mean of the population is 100

Q: Let the sample mean of a set of 20 data points be 30. If it is discovered that a data point having…

A: Given that the sample size is 20 and the sample mean is 30. That is, n=20 and x¯=30 The sample mean…

Q: b) The request for the calculation of the largest amount spent by 50% of females implies the…

A: Here largest amount spent by 50% females is median of the given data set.  And median is given by…

Q: The mean monthly salary of 32 men is 28,500 while that of 38 women is 24,400. Find the mean salary…

A:

Q: 4. The following table shows the opinions of a random sample of students classified according to sex…

A: There are two categorical variables which are opinion and sex. We have to test whether there is a…

Q: Previously, an organization reported that teenagers spend 12.5 hours per week, on average, on the…

A: t-test: If the given sample size is less than or equal to 30 then that is a small sample test.…

Q: 4. Suppose that only 10 students in Nabatieh campus had taken the midterm. Which of the following…

A: We know that, here  n= 10 (even) So median=(n/2 +(n/2+1)th term)/2 = (5th +6th term)/2

Q: Here is sample data on screen time (in minutes/hr) for 3 different populations.   Children 19  19…

A: Given: Children Teens Adults  19 21 33 19 17 34 17 26 33 18 34 23 21 43 56 23 39 21…

Q: Lim works at a software company. He believe that the average staff age at these companies is more…

A: In order to determine whether the average staff age is more than 27 years or not, conduct a single…

Q: 4. The following table shows the opinions of a random sample of students classified according to sex…

A:

Q: 9. A researcher estimates that the average height of the buildings of 30 or more stories in a large…

A: Given data: Mean = 700 feet Sample size = 10 Significance level  = 0.025

Q: If one sample has n = 4 and SS = 90 and a second sample has n = 8 and SS = 150, then the estimated…

A:

Q: According to the NIMH website the average number of adult Americans diagnosed with a “serious mental…

A: Note: "Since you have posted a question with multiple sub-parts, we will solve the first three…

Q: Central Airlines claims that the median price of a round-trip ticket from Chicago, Illinois, to…

A: Given, This claim is being challenged by the Association of Travel Agents, who believe the median…

Q: It is claimed that the mean household size in the River Terrace neighbourhood is 3.5 persons. A…

A: Given that ; Population mean (μ) = 3.5 persons Sample size ( n) = 25  Note :  according to the…

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.