Answer with explanation in Excel Formulas Problem 1: Assume the number of downloads per day of a popular APP A follows a normally distribution with a mean of 2800 and standard deviation of 860. Answer the following questions. Assume the company providing the downloading service has designed its servers so there is probability 0.01 that the number of downloads in a day exceeds the servers' capacity and more servers have to be brought online. Q:How many downloads per day are the servers designed to handle?

Answer with explanation in Excel Formulas Problem 1: Assume the number of downloads per day of a popular APP A follows a normally distribution with a mean of 2800 and standard deviation of 860. Answer the following questions. Assume the company providing the downloading service has designed its servers so there is probability 0.01 that the number of downloads in a day exceeds the servers' capacity and more servers have to be brought online. Q:How many downloads per day are the servers designed to handle?

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

See similar textbooks

Related questions

Q: Claims have mean $500, standard deviation $400 and are lognormally distributed. The insurance…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: An economics professor decides to curve the grades of his class. In doing so, he decides to make it…

A: Given data: An economics professor decides to curve the grades of his class. In doing so, he decides…

Q: Suppose that the mean cranial capacity for men is 1040 cc (cubic centimeters) and that the standard…

Q: Suppose a population is known to be normally distributed with a mean, equal to 116 and a standard…

A: Given dataMean = 116Standard deviation = 14Probability that population would be between 116 and 130…

Q: A race director is preparing for an upcoming marathon and estimates that the mean time to finish is…

Q: uppose that the resting h stributed with mean 80 a /hat heart rate would a m

A: Let X be a random variable with mean 80 and s.d. 15 that follows a normal distribution. So,…

Q: Suppose baby kittens' weights are normally distributed with a mean of 11.9 and a standard deviation…

A: a) Consider that the mean and standard deviation of a random variable X are µ and σ, respectively.…

Q: III. Solve the following 1. Assume that the time a student stays in school is normally distributed…

Q: Suppose that a category of world class runners are known to run a marathon (26 miles) in an average…

A: The random variable X is the average of the 49 races. The mean is 142, and standard deviation is 13.…

Q: Assume that a randomly selected subject is given a bone density test. Those test scores are normally…

A: Finding the value of z at lowest 14-1.08032 ( From Excel =NORM.S.INV(0.14))Finding the value of z at…

Q: If in a data set the observation 78 has z-score equal -0.60 and the observation 88 has z- score…

Q: (1) Find the maximum record(seconds) to be able to go to the final competition. (2) Find the…

Q: Suppose that in a given semester, the MEAN of units taken by students at Delta is 17 and has a…

Q: Ex. 13. If the probability of a defective bolt is 0.2, find (i) mean (ii) standard deviation for the…

A: Givenp=0.2sample size(n)=400

Q: Suppose that resting pulse rates among healthy adults are normally distributed with a mean of 75…

Q: The City of Calgary reports that the number of vehicles that use the Crowchild Trail bridge varies…

A: Given information: μ=107500, σ=8800

Q: Suppose a population is known to be normally distributed with a mean, equal to 116 and a standard…

A: The percentage of the population would be between 116 and 144 is obtained below:It is given that the…

Q: The population weights of a particular fruit is normally distributed, with a mean of 689 grams and a…

A: Given: μ = 689 σ = 30 n = 18 The value of z at 4%, i.e., corresponding to the right to the 4% area…

Q: Provide all necessary computations and a properly labeled curve in asnwering the following. Sam…

Q: 2. An electronic company in laguna manufactures resisters that have aean resistance of 120 ohms and…

A: Given that: Mean resistance: μ=120Ω Standard deviation: σ=13Ω Random sample: n=40 For : Px>114

Q: Suppose that weights of 5th grade elementary girls are normally distributed with mean µ = 64 lbs and…

Q: b. If KA recommends that the client invest 75% in the All World Fund and 25% in the treasury bond…

A: From given data we have : The expected percent return of an investment in the All World Fund is 10%…

Q: The distribution of the number of transactions per day at a certain automated teller machine (ATM )…

A: Mean(µ) = 80Standard deviations (σ) = 10X ~ N (µ, σ )= N(80,10)

Q: 4. A manufacturer of light bulbs finds that one light bulb model has a mean life span of 1025 h with…

A: As per our guidelines I can solve only first question. Kindly post the remaining questions again and…

Q: 18 men will be tested for the discus throw. if Mu= 112ft and standard deviation= 13ft. find the…

A: The normal distribution:A continuous random variable X is said to follow normal distribution with…

Q: A race director is preparing for an upcoming marathon and estimates that the mean time to finish is…

A: Here, μ=308 and σ=54

Q: Suppose that the blood pressure of the human inhabitants of a certain Pacific island is distributed…

Q: Suppose X, the grade on a midterm exam, is normally distributed with mean 80 and standard deviation…

A: Given information- Population mean, μ = 80 Population standard deviation, σ = 10 Suppose X is the…

Q: Assume that adults have IQ scores that are normally distributed with a mean of 103.5 and a standard…

A: Given that mean = 103.5 and standard deviation = 25

Q: A 1995 study shows that since records were first kept in a meteorologist's hometown, the average…

A: Solution: Let X be the temperature during the month of May. From the given information, n=25,…

Q: The length of time taken to complete a particular task on a construction site is found to be…

Q: A homeowner has installed a new energy-efficient furnace. It is estimated that over a year the new…

A: We know that if; X1,X2,...,Xn~Normal(μ,σ2), independently Then; Sn=X1+X2+...+Xn~Normal(nμ,nσ2)

Q: Suppose that the lengths of pregnancies are normally distributed with a mean of 271 days and a…

Q: Assume that adults have IQ scores that are normally distributed with a mean of u = 100 and a…

A: Let X be the random variable from normal distribution with mean (μ) = 100 and standard deviation (σ)…

Q: In a Q system, the demand rate for strawberry ice cream is normally distributed, with an average of…

A: Here we have to solve part (c) only Lead time (L) = 6 weeks Average weekly demand(d) = 295…

Concept explainers

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.

Question

Answer with explanation in Excel Formulas

Problem 1: Assume the number of downloads per day of a popular APP A follows a normally distribution with a mean of 2800 and standard deviation of 860. Answer the following questions.

Assume the company providing the downloading service has designed its servers so there is probability 0.01 that the number of downloads in a day exceeds the servers' capacity and more servers have to be brought online.

Q:How many downloads per day are the servers designed to handle?

Video Video

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

$Point Estimation, Limit Theorems, Approximations, and Bounds$

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, probability and related others by exploring similar questions and additional content below.

Similar questions

A city's mean minimum daily temperature in February is 25°F.Suppose the standard deviation of the minimum temperature in February is 3°F and that the distribution of minimum temperatures in February is approximately Normal. What percentage of days in February has minimum temperatures below freezing (32°F)? Round to the nearest integer as needed.
Assume that ﬁnal exam scores in a given course are approximately normally distributed with a mean of 75 and a standard deviation of 10 points. In a class of 200 students, how many would you expect to fail the exam (i.e., score less than 60) (note: scores can only be approximately normally distributed, because the minimum score is 0, but this should not alter the answer, given how large the mean is relative to the standard deviation).
PLS. Solve Quickly Applications Problems According to a Sallie Mae survey and credit bureau data, in 2008, college students carried an average of $3173 debt on their credit cards (USA TODAY, April 13, 2009). Suppose that cur- rent credit card debts for all college students have a normal distribution with a mean of $3173 and a standard deviation of $800. Find the probability that credit card debt for a randomly se- lected college student is between $2109 and $3605.
please answer in 30 minutes.
A certain manufacturer makes 400w light bulbs. Assume that these light bulbs have lifetimes that are normally distributed with a mean lifetime of 480 hours and a standard deviation of 50 hours. Use this table or the ALEKS calculator to find the percentage of light bulbs with lifetimes shorter than 384 hours. For your intermediate computations, use four or more decimal places. Give your final answer to two decimal places (for example 98.23%). % X Español
Assume time to failure density function (in months) of transplanted kidneys has a Weibull distribution with shape factor of 3 and scale of 6. Use R and answer the following questions (enter your answers with 3 decimal points):
Solve step by step in digital format Suppose that the average income of the engineers hired at REDUNO presents an approximately normal behavior with a mean of $17,000and a standard deviation of $3,000 a) What percentage of the employees will have incomes greater than $20,000 ?b) In a random sample of 50 employees, about how many people can be expected to have incomes of less than $15,000 ?
please see pictures. questions A, B and C
C. Atlantic Video is planning to add the new Marvel movie to their collection, and they predict that this will double their demand (i.e. new arrival rate is 60 customers every hour) and halve the standard deviation of the inter-arrival times. However, they want to keep the average waiting time of customers in line the same as before. Assume that the coefficient of variation for the check-out times does not change. Please answer the following questions. 1) Does the employee need to work twice as fast? If not, calculate the new service rate. 2) What is the average number of customers in the store?