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32. DETAILS Prompt 0/1 Submissions Used 2-D. What is the standard deviation (in whole minutes) for the above flight? O 6400 23 533 12 80 25 O 24 Submit Answer MY NOTES Quantas Airlines quotes a flight time of 20 hours, 15 minutes for its flight from New York (JFK), USA to Sydney (SYD), Australia. Suppose that the actual flight time is uniformly distributed between 19 hours 35 minutes and 20 hours 55 minutes. ASK YOUR TEACHER

If a TV show has a rating of 8.0/16.0 what does it mean? а. 8% of all televisions in use at the time were tuned to that show, and 16% of all households with a TV were tuned to that show b. 50% of all households with a TV set were tuned to that show с. 8% of all households with a TV set were tuned to that show and 16% of all televisions in use at the time were tuned to that show d. 50% of all televisions in use at the time were tuned to that show

ll by adding 5 to each of the numbers in the set 3.6 117 7 1 we obtain the set 8, 116, 12, 10 Show that the two sets have the standard deviation Same deviation but different means How are the mean related ?

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For all parts of this question, assume that the log of GDP per capita is normally distributed with a mean of 8.7 and standard deviation of 1.5. Step 2 of 4: What is the probability that a country picked at random has income per capita > $2,000? Answer Keypad Keyboard Shortcuts 0.7327 O 2327 2673 0.7673 O O O

Q. 2. Explain why there must be mistake in the following statement: "A quality control engineer claims that the probability that a large consignmen of glass bricks contians 0, 1, 2, 3, 4 or 5 defectives are 0-11%; 0-23, 0-37, 0-26, 0-009 and 0-05 respectively".

Could you help me with this homework question? I got an answer of 22.9

Suppose X is a random variable with possible values -2,3 and 1 and with respective probabilities 0.22, 0.35, and 0.43 then the mean and standard deviation of X, respectively, are: of a. 1.04 and 1.838 O b. 1.04 and 1.876 O c. 0.667 and 1.876 d. 1.04 and 0.3733 O e. 0.667 and 0.3733

A courier company guarantees its customers that the average time to pick up their packages is 20 minutes with a tolerance of 4 minutes. The company collected data on 30 actual arrival times and determined that the average is 20 minutes and standard deviation of this sample was 1 minutes. What is the Cpk of this package service process? O Less than 1 1.33 O Great than 2 01

The 2018 statistics shows that the average life expectancy of females in Canada has risen to 83.9 years. Assuming the standard 1 deviation of their life expectancy was 7.4 yoars, determine the minimum percentage of females in Canada whose life expectancy was between 75.02 and 92.78 years. Type your numerical answer here. Numbers only

FIVE. Which of the following is true about standard deviation?     The first step in calculating the standard deviation is calculating the square root.   The second step in calculating the standard deviation is to subtract each measurement from the intermediate value and then square that difference.   The last step in calculating the standard deviation is to sum the squared values and divide by the number of values minus one.   Standard deviation is a type of average where the positive and negative numbers sum to zero.   The amount of difference of the measurements from the central value is called the sample standard deviation.

(26) A company is interested in determining whether the average life of HP and Epson printers is different. A sample of HP and Epson printers result in the following: HP: average life-7 years Standard deviation -2 years n- 10 Epson: average life - 5.5 years Standard deviation -2.5 yearsn-8 At a-.05, is there a statistically significant difference between the longevity of the two brands of printers?

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Question: The average hourly wage of a sample of 150 workers in a plant 'A' was Dollar 2.56 with a standard deviation of Dollar 1-08. The average hourly wage of a sample of 200 workers in plant 'B' was Dollar 2.87 with a standard deviation of Dollar 1.28. Can an applicant safely assume that the hourly wages paid by plant 'B' are higher than those paid by plant 'A'?

Suppose you are shopping online for a new toy for your dog. As you look at the product reviews, you see the following distribution of ratings. Use this table for questions 2-5. Stars 5 4 3 st 2 IN 1 Frequency 9 3 2 1 5

Note: the answer should be typed.

After every score in a sample is divided by 3, the mean is calculated and found to be M= 7. What was the mean for the original scores? 63 Cannot be determined from the information given O 21

Tom is a salesman.  The following are the details regarding source of his income.           Base weekly salary = $350             Sales commission = 12% of price the item sold         Average price of items sold = $270             Average weekly number of items sold, E(x) = 30             Standard deviation of number of items sold per week, sd(x) = 6.8             Number of weeks a year Tom works = 48       25 Tom's average annual earnings is ________. a $65,042       b $63,456       c $61,908       d $60,398

Use the following information to answer the next two questions: A service station has a pump that distributes diesel fuel to automobiles. The station owner estimates that only about 4.8 cars use the diesel pump every 2 hours. What is the probability that 5 cars will arrive to use this pump during a two-hour period? O 65.1% O 32.24% O 13.5% O 22.26% O 17.5% QUESTION 32 What is the probability that one or no cars will arrive to use the diesel pump during a half-hour period? O 4.77% O 49.3% O 66.26% O 30.12% O 36.14%

where did you get 0.1235 from??

Suppose the profit a Honda dealership makes on the next 5 Accords it sells are:504, 1,027, 867, 1,434, 1,372. Calculate the standard deviation of the sample. (please express your answer using 2 decimal places).

If a typist makes errors at random at a mean rate of 4 per page, then the probability of making at most 6 errors on two pages is: 0.3134 O 0.8488 O 0.9788 O None of these

The graph shows the distribution of the lengths (in seconds) of videos on a popular video-streaming site. The distribution is approximately Normal, with a mean of 264 seconds and a standard deviation of 75 seconds. Streaming Videos -36 39 114 189 264 339 414 489 564 Length (Seconds) What percentage of videos on the streaming site are between 39 and 189 seconds? 0.15% 15.85% O 16% 34%

I need answer typing clear urjent no chatgpt used i will give upvotes

Question 21 On the average, the amount of money that a customer spends in the store is $40 with a standard deviation $1O. The probability that the total spending of 4 customers in the store is over $170 is closest to 0.1543 0.3085 0.2376 O 0.4013 not able to calculate

Scenario 38-5. Researchers are interested in the height of the average person in San Francisco, California. Using a random sample of 1,000 people, they find that the average height in the sample is 68 inches. (Hint: Be sure to calculate the Refer to Scenario 38-5. If the standard deviation of heights is 3 inches, we can be 95% confident that the true mean height of the population is between standard error of the estimate.) O O O O between 67.997 inches and 68.003 inches. between 67.905 inches and 68.095 inches. between 67.905 inches and 68 inches. between 68 inches and 68.095 inches.

An estate agent advertises its houses in two media; Daily Graphic and Ghanaian Times. The agent believes that there is a relationship between the sales S and the amounts spent on the two advertising media. The relationship is given by;       where, d is the amount spent in Daily Graphic and g is the amount spent in Ghanaian Times. The estate’s agent fee is 12½% and this includes the cost of adverting. If the agent has planned to spend only 200 thousand Ghana Cedis on advertisement, show how it should be allocated between the two media in order to maximize net profit.

53. The annual demand for Prizdol, a prescription drugmanufactured and marketed by the NuFeel Company,is normally distributed with mean 50,000 and standarddeviation 12,000. Assume that demand during each ofthe next 10 years is an independent random numberfrom this distribution. NuFeel needs to determine howlarge a Prizdol plant to build to maximize its expectedprofit over the next 10 years. If the company builds aplant that can produce x units of Prizdol per year, it willcost $16 for each of these x units. NuFeel will produceonly the amount demanded each year, and each unit ofPrizdol produced will sell for $3.70. Each unit of Prizdol produced incurs a variable production cost of $0.20.It costs $0.40 per year to operate a unit of capacity.a. Among the capacity levels of 30,000, 35,000,40,000, 45,000, 50,000, 55,000, and 60,000 unitsper year, which level maximizes expected profit?Use simulation to answer this question.b. Using the capacity from your answer to part a,NuFeel can be 95%…

Alocal toy manufacturer is using a production line that runs 8 hours per day and produces a toy that requires a total of 7 tasks to be performed. The daily demand is 100 toysTimes of the tasks are 273, 2.01, 2.13, 2.0, 2.61, 2.71 and 2.95 minutes for A, B C, D, E , and Grespectively. However, due to the nature of the product there are precedence rules that must be observed. Such that Task A does not need any predecessors: task B requires task A to be completed. To start task Deach require task B to be completedTask must be completed prior to stating task E. Task F needs both task D and task E to be completed. Finally, task G can start only once task Fiscompleted.Given we apply the most remaining tasks rule for balancing the assembly line, with broken according to longest task time firstWhat will the estimated idle time in minutes for THIRD workstation?

No chatgpt used i will give 5 upvotes typing please

Solve it correctly

For the following time series plots, explain what type of transformation, if any, would make the variance more stable.