A pet store sells fancy handcrafted nametags togo on dogs’ and cats’ collars. The store’s profit is$6 for each dog nametag and $5 for each catnametag sold. Each week the store sells an averageof 12 dog tags with a standard deviation of 4 tags,and an average of 15 cat tags with a standarddeviation of 3. The store’s expected weekly profiton these products is $147. Assuming sales areindependent, what’s the standard deviation of thisweekly profit?A) $11.87 B) $14.80 C) $28.30D) $39 E) $55

Q: The scores on the board are Normally distributed with a mean of 67 and a standard deviation of 13.…

A: From the provided information,X~N (67, 13)The bottom 5% of students will fail.

Q: The heights of adult men in America are normally distributed, with a mean of 69.7 inches and a…

A:

Q: If the average weight for cats is 12 pounds and the standard deviation is 2 pounds. 95 percent of…

A: Given data:  average weight for cats = 12 pounds standard deviation = 2 pounds. To find: 95 % of all…

Q: The tallest living man at one time had a height of 261 cm. The shortest living man at that time had…

A:

Q: The data show the chest size and weight of several bears. Find the regression​ equation, letting…

A: Given Solution:

Q: u and your friend have recently taken two different standardized mathematics exams. You scored 92 on…

A: The mean = 100The standard deviation = 10

Q: The weights of men in their 30s are normally distributed with a mean of 190 pounds and a standard…

A: From the provided information, Population mean (µ) = 190 pounds Population standard deviation (σ) =…

Q: Scores by women on the SAT-1 test are normally distributed with a mean of 988 and a standard…

A: Given Information Now we have to calculate corresponding Z value                         Z = 0.7388…

Q: In the past, the value of houses a local realtor has sold is normally distributed with a mean of…

A: We have to find given score.

Q: It takes an average of 8 minutes for blood to begin clotting after an injury. An EMT wants to see if…

A: Given The data is as follows: Pop. mean, μ=8Sample size, n=62Sample mean, x¯=7.8Sample sd,…

Q: Furnace repair bills are normally distributed with a mean of 263 dollars and a standard deviation of…

A: Here, µ = 263 and σ = 25.

Q: A painter purchases two types of paints, paint A and paint B. The amount of paint A purchased per…

A: Expected amount spent by firm on both types of paints combined is as follows…

Q: A businessman calculated the average price of variety A rice per kilo at ₱32.00 with a standard…

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A:

Q: Moonbucks roasts 2 types of coffee: Guatemala Gold and Sumatra Silver. Each month, the demand for…

A: The formula for covariance is: Cov(X,Y)=ρXY​⋅σX​⋅σY​ Given:(ρXY​=−0.4)…

Q: A set of math test scores has a mean of 70 and a standard deviation of 8.  A set of English test…

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Q: Hamad scored 67 on the maths final exam and 82 on the marketing final exam. The maths exam had a…

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A: As per our guidelines we are suppose to answer one three subparts kindly post the remaining subparts…

Q: On Bob's last history test, he had a score of 92.  Bob's z-score was -0.5, and the test's standard…

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A:

Q: On a standardized exam, the score are normally distributed with a mean of 300 and a standard…

A: X~N( μ , ?)   μ=300 , ?=25   Z-score =( x - μ )/?

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A: We have given Mean(µ) = 40Standard deviations (σ) = 11.2X ~ N (µ, σ )= N(40, 11.2)

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Q: The heights of adult men in America are normally distributed, with a mean of 69.5 inches and a…

A:

Q: On a Physicians Licensure Exam with a population mean of 83 and standard deviation of 8. Jenny…

A: It is given that Mean = 83, Standard deviation 8

Q: Each year students in a local school district write a national examination. The average on this…

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Q: A student takes a test in his math course and scores 45 points and a test in his psychology…

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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.