1. Hotels are rated on the basis of one to five stars. The Holiday Stay Hotel chain rated all 50 of it's hotels. The data is shown in the diagram below. Number of Stars Frequency 10 22 4 8 5 3 1). Find the standard deviation for this set of data to the nearest hundredth. 2). Did you calculate the sample or population standard deviation? 3). How many hotels have ratings that fall within one standard deviation of the mean?

Q: (A2) if the standard error of the mean is 10 for N=12, what is the standard error of the mean for…

A: Given (A2): SE=10 for N=12 (A2): SE= 50, for N=25

Q: 2. A student has the following quiz scores: 5, 8, 16, 17, 18, 20. Find the standard deviation for…

A: Given- A student has the following quiz scores: 5, 8, 16, 17, 18, 20. To find- Find the standard…

Q: Accoraing to the Census Bureau, 3.13 people reside in the typical American househola. A sample of 25…

A: Given ; sample Mean = x = 2.86 standard deviation = σ = 1.2 sample size = n = 25 Population mean =μ…

Q: The distribution of passenger vehicle speeds traveling on the Interstate 5 Freeway (I-5) in…

A: Note: Hi, thank you for the question. As per our company guideline we are supposed to answer only…

Q: Given a sample data set with a Variance of 6.25, what is the Standard Deviation of the data set.?

A: Given, Variance=6.25 sd=?

Q: a) In the analysis of a barrel of powder, the standard deviation of the sampling operation is ±4%…

A: a) The standard deviation of the sampling operation is ± 4% or ± 0.04 and the standard deviation of…

Q: The 2000 U.S. Census also asked for each person's age. Suppose that a sample of 40o households taken…

A: Solution-: We have following table: Class Freq (fi) 0-20 32 21-40 16 41-60 13 61-80 10…

Q: b. For a sample of engineers, the mean salary is $95,000 with a standard deviation of S30,000. The…

A: Given data: The mean of salary is m = $95000. The standard deviation is σ = $30000. The median…

Q: For the following sample of scores: 28 22 38 26 14 8 4 If the mean is 20, Then the standard…

A: Given x-bar=20 n=7

Q: The scores on an aptitude test are normally distributed with a mean of 18 and standard deviation of…

A: Note: Hey, since there are multiple subparts are posted, we will answer first three subparts for…

Q: In triathlons, it is common for racers to be placed into age and gender groups. Friends Leo and Mary…

A: d) The Z-score of a random variable X is defined as follows: Z = (X – µ)/σ. Here, µ and σ are the…

Q: The number of hours worked per week for a sample of ten students is shown below. Student Hours 1 2…

A: Note- As per our policy we can answer the first 3 sub-parts of a question.   Given information- The…

Q: The descriptive measures in a set of data are as follows: a sample mean of 50.24, a median of 49 and…

A: Following data is given, Mean =50.24, Median =  49, Standard deviation = 13.77.

Q: 2. A normally distributed set of 968 values has a standard deviation of 11 and a mean of 108. Which…

A:

Q: Monica believes that the number of email accounts a person has depends on what area of the country…

A:

Q: The highway mileage (mpg) for a sample of 10 different models of a car company can be foun below. 29…

A: Given range is 25. standard deviation using range rule of thumb is ?

Q: b) The American Automobile Association reports that the average time it takes to respond to an…

A: Given  μ=38, σ=9.002 and n=80

Q: (e) How good was the Denver Broncos' 2013 NFL season compared to the rest of the football teams that…

A: We have to find out z score..

Q: A positively skewed population has a mean of ? = 100 and a standard deviation of ? = 15. a. What is…

A: Mean of , μ = 100 Standard deviation of , σ = 15   What is the mean of the distribution of sample…

Q: 2. Given the mean age of 15 children in the table below is 3.4, determine the sample variance and…

A: The mean age of 15 children are given , we have to find the sample variance and the standard…

Q: 3. Find the mean, median, mode, and Standard deviation of the following data: 15, 11, 18, 9, 15, 18,…

A: The mean can be calculated as follows:

Q: An evaluation team set out to survey the cost of malaria drugs in two urban areas. The following…

A: Note: Hey there! Thank you for the question. As you have posted a question with more than 3…

Q: The blood cholesterol levels of men age 55 to 64 are approximately Normal, with mean 222 milligrams…

A: 4. Given that μ=222σ=37 (a) The percent of these men have high cholesterol is,…

Q: The quality-control manager at a light bulb factory needs to determine whether the mean life of a…

A: We have given that  Sample size n=64  Sample mean = 350 Standard deviation = 100 Note :-According to…

Q: What does Chebyshev’s rule say about the percentage of observations in any data set that lie within…

A: a.We have to determine the percentage of observations in any data set that lie within six standard…

Q: You are an educational researcher at McMaster University. Suppose you know that 22.7% of the entire…

A:

Q: Given that the mean is 76 and the standard deviation is 12, fill in the answerboxes below the labels…

A:

Q: We are going to calculate the standard deviation for the following set of sample data. 8 15 11 6. 3…

A: Given data, 8,5,11,9,3 standard deviation=?

Q: Mitsubishi which operates and manages car rentals for DMMMSU employees found that the tire lifetime…

A: Given For the first question μ=50000σ=3500   For the second question  μ=50σ=6

Q: A B. 1 Doctor visits 0. 1 2. Frequency 7. 149 121 4. 5 54 4. 450 110 12 8. 12 6. 10 8. 14 11 6. 12…

A: From the provided information, A B Doctor visits Frequency 0 7 1 149 2…

Q: Consider the following data: 10,6,1,2,8,9 Calculate the value of the sample standard deviation.…

A:

Q: 3. The amount of beer Finnish people drink per year is normally distributed with 1 = 78.7 liters and…

A: We have to find correct answer for given data..

Q: 1. For each day of last year, the number of vehicles passing through a certain intersection was…

A: The provided information is  µ=375 σ=25 P(X>425)=P(X-µσ>425-37525)=P(Z>2)=0.0228=2.28%

Q: Given that a data set has a mean of μ=32.7 and a standard deviation of σ=1.8, find the percent of…

A: As per company guidelines I solved exactly three subparts of the question.thank you

Q: (25) The distribution of average speeds of the top 53 drivers in NASCAR is roughly symmetric,…

A: (a) Draw the normal curve with the values from Z=–3 to Z=3

Q: 7. Take a look at the following data set: 4 6 8 10 12, What is the sample standard deviation?

A:

Q: 4) Which of these samples would have the smallest standard deviation? a. 101, 92, 84, 131 b. -25,…

A:

Q: A sample of voters in a town are classified by age groups, as shown by the following: Age Group 21 –…

A:

Q: 1. Listed below are the top 10 annual salaries​ (in millions of​ dollars) of TV personalities. Find…

A:

Q: Consider the following two sets of sample data: A: 33, 42, 51, 54, 66, 78 B: 2, 4, 9, 5, 6, 10 The…

A: Solution: From the given information, the standard deviation of A is 16.2 and the standard deviation…

Q: 4. Find the mean and the standard deviation of the following data set: 12, 15, 12, 19, 21, 11, 13,…

A:

Q: A guidance counselor wishes to determine the mean number of changes in academic major by college…

A: Given that, Standard deviation = 0.45 90% confidence level

Q: Given n=10 measurements: 13, 15, 14, 16, 20, 15, 16, 19, 12, 18 The standard deviation is

A:

Q: Calculate the mean and sample standard deviation of the data shoWH. places 21 14 26 10 11 23 Mean =…

A: Mean :  The mean of a data set is the sum of the terms divided by the total number of terms. Using…

Q: . The distribution of passenger vehicle speeds traveling on the Interstate 5 Freeway (I-5) in…

A: Given that  The distribution of passenger vehicle speeds traveling on the Interstate 5 Freeway (I-5)…

Q: The following are grade point averages measured in a sample of 8 undergraduate students who are…

A: Solution: Let X be the grade point average. The given data is 3.28, 2.97, 3.05, 3.61, 3.39, 2.95, 3…

Q: What is the standard deviation for the data given: 12, 18, 16, 22 Select one: а. 17.33 b. 13 c. VT3

A: Solution : Given data is :12,18,16,22 x¯=∑xin=12+18+16+224=17

Q: Consider the following sample data.  Sample A: 8,13,18 Sample B: 66,71,76 Sample C: 1,025,…

A: From the given information, the 3 samples are as follows:   A B C Samples 8, 13, 18 66, 71, 76…

Q: Based on the data set below, what is the standard deviation? 28        21        37        38…

A:

Q: 1. A radar unit is used to measure the speed of automobiles on the expressway during the rush-hour…

A: 1. (a) Let x be the speed of individual automobiles which follows normal distribution with mean 62…

Sequence and Series

A sequence is defined as a collection of things. Series is defined to sum the things one by one in the sequence.  It was invented by German mathematician Carl Friedrich Gauss.