2. The average credit card dept for a recent year was P43,100. Three years earlier the average credit card dept was P 41,890. Assume sample sizes of 50 were used and the standard deviations of both samples are P7,810. Is there enough evidence to believe that the average credit card dept has increased? Use.

Q: 2: The following sample scores were obtained from a population with unknown parameters: 1, 5, 1, 1…

A:

Q: 1) Which sample will have the larger mean number of books read? 2) Which sample will have the larger…

A: The given histogram is:

Q: 3. It was observed that the standard deviation of the number of hours people are glued to their…

A: 3. The provided information is  σ=13.43

Q: what would the mean and standard deviation of the sample proportion ˆp be?

A: Let X be Pennsylvanians who have a high school diploma Given, n = 225 p = 0.83

Q: The following sample was obtained from the population. 13,7,6,12,0,4 b) Compute the sample…

A:

Q: Compute the standard deviation for the following sample data. Provide answer up to 3 decima its…

A: Consider, x¯=32+41+63+24+29+30+40+22+25+3710  =34.3

Q: A recent study shows that out of 5, 000 people who moved to Arizona, 2, 350 did so to take a new…

A: From the given information, sample size n = 1000. Total number of people moved n(S) = 5000. Number…

Q: A researcher believes that maximum security inmates have a more lengthy arrest record than minimum…

A: The provided information is:

Q: Nationally, patients who go to the emergency room wait an average of 4 hours to be admitted into the…

A:

Q: 3. A line up for tickets to a local concert had an average (mean) waiting time of 20 minutes with a…

A: Formula : Z =(X - μ)/σ

Q: Nationally, patients who go to the emergency room wait an average of 5 hours to be admitted into the…

A: Given: μ0=5 hours.n=11x¯=2.7 hours s=2.9 hoursα=0.05

Q: A reading specialist wanted to estimate the mean word length, in number of letters, for an…

A: Given data Sample size ,n=100 Sample mean  x ̅  =4.9 letters Sample SD , s=0.15 letters

Q: 31. A company of coffee prices at 4randomly selected grocery stores in Sampaloc, Manila showed…

A:

Q: A company of coffee prices at 4 randomly seleced grocery stores in Sampaloc, Manila showed increases…

A: Given data is12,15,17,20sample size(n)=4sample mean(x¯)=12+15+17+204sample mean(x¯)=644sample…

Q: 5. The following are raw marks of  8 students in a Satatistics assessment. 36, 50, 17, 22, 25, 20,…

A:

Q: Nationally, patients who go to the emergency room wait an average of 5 hours to be admitted into the…

A: One sample t-test: One sample t-test is used to test the significance difference between population…

Q: Calculate the "sample standard deviation" for the following "sample data" 2, 4, 1, 6, 5, 8

A: The required calculation can be defined by the formula Sample standard deviation: S=∑i=1n(xi-x¯)2n-1…

Q: Provided that the ACT is reasonably normally distributed with a mean of 18 and standard deviation of…

A: From the provided information, Mean (µ) = 18 Standard deviation (σ) = 6 Let X be a random variable…

Q: Nationally, patients who go to the emergency room wait an average of 4 hours to be admitted into the…

A: As per our guidelines we are supposed to answer only 3 subpart of any questions so i am solving…

Q: The ages of a sample of Canadian tourists flying from Toronto to Hong Kong were 32, 21, 60, 47, 54,…

A: Given that,32 21 60 47 54 17 72 55 33 41

Q: Based on annual driving of 14,000 miles and fuel efficiency of 20 mpg, a car in the United States…

A: Solution: Let X be the number of gallons per year. From the given information, X follows normal…

Q: what is the mean and standard deviation of the following sample:  8, 1, 5, 1, 5

A: From the given information, X= {8, 1, 5, 1, 5}Mean and standard deviation of the sample can be…

Q: Bank of America’s Consumer Spending Survey collected data on annual credit cardcharges in seven…

A:

Q: (4). Calculate SS, variance and the standard deviation for the following sample of n-5 scores: 9, 6,…

A: Find SS, variance and. Stranded divination

Q: Last year, the numbers of skateboards produced per day at a certain factory were normally…

A: Let ꬷ(x) be the cumulative distribution of the standard normal distribution

Q: Nationally, patients who go to the emergency room wait an average of 7 hours to be admitted into the…

A: 1)The t-test statistic:Here, the sample size is small and sample standard deviation is unknown.…

Q: Toby's Trucking Company determined that on an annual basis, the distance traveled per truck is…

A: Given that :  The distance traveled per truck is normally distributed with a mean ( µ ) : 50,000…

Q: Nationally, patients who go to the emergency room wait an average of 4 hours to be admitted into the…

A: a. Since the population standard deviation is unknown, the appropriate test is one sample t-test.…

Q: 5. A comparison of coffee prices at 4 randomly selected grocery stores in Sampaloc, Manila showed…

A: Given data is 12, 15, 17, 20sample size(n)=4sample mean (x)=12+15+17+204sample mean (x)=644=16

Q: (a) Compute the sample standard deviation for the number of breweries east of the Mississippi River.…

A: Given: State No. of breweries Georgia 22 Illinois 52 Kentucky 13 Maine 38 Maryland 23…

Q: Suppose a population has three values 13, 17 and 24. What is the standard deviation of the sampling…

A: Given, Population values are 13, 17 and 24. Samples are drawn without replacement.

Q: Assume the sample standard deviation is s=10, what do you conclude?

A: here given, sample mean = 87 n = 25 sample standard deviation  = 10

Q: Nationally, patients who go to the emergency room wait an average of 7 hours to be admitted into the…

A: From the provided information, Sample size (n) = 11 Sample mean (x̄) = 6.2 Sample standard deviation…

Q: 8) A local supermarket spent $250,000 remodeling. Prior to remodeling, the average daily receipts…

A:

Q: what is the mean and standard deviation of the following sample:  18, 1, 5, 1, 5

A: Solution:The mean is obtained below:The sample mean is 6.

Q: Grace Floral Shop claims that their average daily earnings is $497. An auditor wants to determine…

A: From the provided information, Sample size (n) = 100 Sample mean (x̅) = 495 Sample standard…

Q: What is the standard deviation of the following sample data:  24, 37, 31, 48, 19, 31.

A: Solution: x x^2 24 576 37 1369 31 961 48 2304 19 361 31 961 --- --- ∑x=190…

Q: At a local veterinary office, 48% of dogs get their teeth cleaned, while 35% of cats get their teeth…

A: Obtain the standard deviation of the sampling distribution with the correct interpretation. The…

Q: Compute standard deviation for the following data : 5, 8, 7, 11, 9, 10, 8, 2, 4, 6.

A:

Q: A sample of 100 cars driving on a freeway during a morning commute was drawn, and the number of…

A:

Q: Nationally, patients who go to the emergency room wait an average of 6 hours to be admitted into the…

A:

Q: Suppose the mean net worth of the resi- dents of Sun City, a retirement community, is $611,000…

A:

Q: Calculate the variance and standard deviation for the following sample of scores: 7, 2, 4, 6, 4, 7,…

A: Number of samples (n) = 8 7 2 4 2 -3 9 4 -1 1 6 1 1 4 -1 1 7 2 4 3 -2 4 7…

Q: ordinary traveler claims that the average difference between the plane fares of all trips from the…

A: Given : Claim : The average difference between the plane fares of all trips from the Philippines to…

Q: Nationally, patients who go to the emergency room wait an average of 7 hours to be admitted into the…

A: Given that  Sample size n =12 Sample mean =5.8 Standard deviation =1.8 NOTE:- According to bartleby…

Q: Suppose that, on average, electricians earn approximately µ = $54,000 per year in the United States.…

A: Given information- Population mean, µ = $54,000 Population standard deviation, σ = $12,000 Sample…

Q: What is the standard deviation of the following sample of size n = 5?-3,5,8,10,12

A:

Q: The average credit card debt for a recent year was $8,776. Five years earlier the average credit…

A:

Q: A publisher is interested in the effects on sales of college texts that include more than 100 data…

A: Lets the sample mean and sample standard deviation for sample with more than 100 data file is…

Q: A realtor claims that in a certain neighborhood, the average house is worth $200,000. Having been…

A:

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.