A business process outsourcing (BPO) company is being offered by its professional organization, the BPO Association, Inc. (BPOAI), a new application that would supposedly increase the number of transactions. The company tried this new app for 1 week on the same set of agents. The data below, the number of transactions in one week were gathered (normality of data is assumed). Worker No. Present App New App Worker No. 7 1 697 723 778 8 896 698 2 723 744 701 T 9 723 3 749 753 756 10 Present App New App At the 0.05 level of significance, is there evidence that the claim of BPOAI is true? Would you recommend that the company purchase the new app? 712 4 801 832 778 11 699 5 723 699 687 12 768 6 712 756 699 |

Q: A traffic safety company publishes reports about motorcycle fatalities and helmet use. the first…

A: From given data we have ; Location of Injury Probability  Frequency Multiple  0.570 1021 Head…

Q: Let p be the population proportion for the following condition. Find the point estimates for p and…

A: Given that X = 520.     and.     N = 1259

Q: A random sample of 75 students at the University of Minnesota spend an average of $614 per month in…

A: Given that, 75 students at the University of Minnesota spend an average of $614 per month in rent…

Q: Classify the below if they are examples of descriptive or inferential statistics: Prompts…

A:

Q: Suppose the researcher obtains a 95% confidence interval of (6.9, 7.3). What is the margin of error?…

A:

Q: Match to the appropriate answer. You will not use all options and you may not use each option more…

A: Dear student, If you find this solution helpful please upvote it. The solution is given below:

Q: c) What should the guaranteed delivery time be on packages so that 90% of the packages will be…

A: The given mean is 15 and standard deviation is 2.

Q: For the same sample statistics, which level of confidence would produce the widest confidence…

A:

Q: large food processing company wants to pack exactly 300 grams of tuna fish in a can .It is known…

A: Each hypothesis test make conclusion based on two different approaches. They are critical value…

Q: Compute for the Pearson Product Moment Correlation Coefficient of the following data set. Interpret…

A:

Q: A researcher wishes to see if there is a difference in the manual dexterity of athletes and that of…

A:

Q: The average credit card debt for a recent year was $9205. Five years earlier the average credit card…

A: The average credit card debt for a recent year is $9205, and the average credit card debt for 5…

Q: Determine whether the following graph can represent a variable with a normal distribution. Explain…

A: From the above graph we can see that, it is symmetric the mean =median= mode= 20 i.e. mid point of…

Q: Find E(X^2) when random variable X has normal distribution with mean(µ) = 7 and standard deviation

A: Given information: mean(µ) = 7 and standard deviation(σ) = 4. That is, μ=EX=7σ=4⇒σ2=42=16

Q: EXAMPLE 6.14 Derive the average number of cutomers in the system for (M/M/1): (/FIFO) model.

A:

Q: You happen to be stranded on a cruise ship that is foundered and is taking on water and zombies.…

A: Method: hypothesis testing,  Reject the null hypothesis

Q: Friday the 6th Friday the 13th 10 13 6 11 3 11 9 12 3 14

A: First we find di for every observation where  di=Friday the 6th - Friday the 13th  di= Xi- Yi

Q: Which of the following are true? (Select all that apply.) 1   An assumption of a linear regression…

A: consistent dispersion of the observations from the regression line is a assumption of linear…

Q: A large super market chain is doing market research in the City of Long Beach to determine whether…

A: Hypothesis test are used to measure the mean significance between the sample and population. If the…

Q: If the arrival and departure rates in an M/M/1 queue are 1/2 per minute and 2/3 per minute…

A:

Q: The heights (in cm) of students in a class are: {156, 152, 148, 159, 150} a) Determine the mean…

A: The following information has been provided: 156, 152, 148, 159, 150 The number of observations are…

Q: An unbiased cubic die is thrown. What is the probabiltiy of getting a multiple of 3 or 4?

A:

Q: Answer these questions of probabilities please. A.) What is the probability of getting a sum of less…

A:

Q: Smoking Survey National statistics show that 23% of men smoke and 18.5% of women do. A random sample…

A: given data  n1 = 131    x1 = 41p^1 = x1n1 = 41131 = 0.3130 n2 = 120    x2 = 24p^2 = x2n2 = 24120 =…

Q: To test Ho: o=1.7 versus H₁: o>1.7, a random sample of size n = 22 is obtained from a population…

A: H0 : σ = 1.7H1 : σ > 1.7n =22

Q: K The test statistic of z= -2.78 is obtained when testing the claim that p<0.74. a. Using a…

A: given data Z = -2.78claim : P&lt;0.74H0 : p = 0.74Ha : p &lt;0.74

Q: A credit score is used by credit agencies (such as mortgage companies and banks) to assess the…

A: Given that, Mean (barx) = 715.3 Standard deviation (s) = 82.5

Q: Select the statement that is equivalent to I saw The Titanic or Napoleon Dynamite. Choose the…

A: Option C is the answer. If I did not see the Titanic, I saw Napolean Dynamite

Q: Running Shoes. A shoe designer tests a new material for the soles of their most popular line of…

A: Given data: Runner New material wear Old material wear 1 1.14 1.03 2 1.04 0.87 3 1.08 0.96…

Q: Suppose that we conduct a survey of 19 millionaires to find out what percent of their income the…

A:

Q: A researcher is interested in estimating the average amount of sleep obtained by first-year students…

A: 1 .population :  population here is first year students at MacEwan University . 2. sample :  sample…

Q: The stemplot displays data on the amount spent by 50 shoppers at a grocery store. Note that the…

A: Given that: Stem Leaf 0 3 9 9 1 1 3 4 5 6 7 7 8 8 9 2 0 0 0 1 2 3 4 5 5 6 6 8 8 8 8 3 2 5…

Q: . If a hypothesis test is between two variances or standard deviation, a chi-squared test is…

A: 1. If a hypothesis test is between two variances or standard deviation, a chi-squared test is…

Q: manufacturer knows that their items have a normally distributed length, with a mean of 8.1 inches,…

A: given data, normal distribution ,μ=8.1σ=2.5n=24p(x¯&lt;7.2)=?

Q: Consider the following linear regression model: Yt = Bo + B₁x1t + B₂X2+ + Ut Instead of estimating ,…

A: Given that the linear regression model is,…

Q: Excel: Using VLOOKUP and Other Functions spreadsheet (includes directions) Open the Business…

A: Introduction Excel is a tool which is used for formatting, organizing and calculating data in a…

Q: 04. The Korean Food in Block A Sold the following number. > 35 40 32 45 52 37 18 (a) Find the mean…

A: Solution: Given that X: 35 40 37 45 52 32 18 ,     n=7 X X2 35 1225 40 1600 37 1369 45…

Q: Use the normal distribution of SAT critical reading scores for which the mean is 510 and the…

A: Given that, SAT critical scores are normally distributed. Mean = 510 Standard deviation = 111

Q: C Use A = {3,4,7) and B={1,2,5,8) to find the set (An B) U (An B') within the universal set…

A:

Q: Engineers want to design seats in commercial aircraft so that they are wide enough to fit 99% of all…

A: From the provided information, Mean (µ) = 14.7 Standard deviation (σ) = 0.8 X~N (14.7, 0.8)

Q: According to a recent survey, 52% of UAE residents are considering a switch to hybrid or electric…

A: Given: P = 0.52 n = 250 X = 145 α = 1% = 0.01 Formula Used: Test-statistic Z = p-PP(1-P)n

Q: A poll was conducted to investigate opinions about global warming. The respondents who answered yes…

A: A poll regarding global warming is conducted.

Q: A bag contains 7 green and 5 black balls. Three balls are drawn one after the other. The probability…

A: 7-green  balls5-black balls 12- total balls three balls are drawn one after the other we have to…

Q: Use the time/tip data from the table below, which includes data from New York City taxi rides. (The…

A: Regression is the statistical technique which used to predict the value based on the another…

Q: Aaron's Word Processing Service (AWPS) does word processing. The rate for services is $32 per hour…

A: Given: The rate for service is = $32 per hour One-time charge = $31.50 Formula Used: Y = a + bX

Q: Nicotine Content of Cigarettes A manufacturer of cigarettes wishes to test the claim that the…

A: Claim: The variance of the nicotine content of the cigarettes is equal to 0.638. Null Hypothesis:…

Q: The lifetime of a certain type of battery is normally distributed with mean value 10 hours and…

A: Given,sample size(n)=4mean(μ)=10standard deviation(σ)=1

Q: Suppose a professional golfing association requires that the standard deviation of the diameter of a…

A:

Q: 5:00 K The graph of a normal curve is given. Use the graph to identify the value of u and o. The…

A:

Q: .The lifetime of a certain kind of electric bulb may be considered as a RV with mean 1200 hours and…

A: