What is the probability of getting more than 12000 hits

Assignment Help Basic Statistics
Reference no: EM13245842

Question 1:

X is normally distributed with a mean of 250 and a standard deviation of 40. What value of X does only the top 15% exceed?

Question 2:

Travelbyus is an Internet-based travel agency wherein customers can see videos of the cities they plan to visit. The number of hits daily is a normally distributed random variable with mean of 10,000 and a standard deviation of 2,400:

a) What is the probability of getting more than 12,000 hits?

b) What is the probability of getting fewer than 9,000 hits?

Reference no: EM13245842

Questions Cloud

Calculate the elasticity of demand for your chosen company : Calculate the elasticity of demand for your chosen company's automobiles (or choose a specific make / model). Interpret what the demand tells your chosen company's management team.
Compute delta g for the formation of 1 mole : Calculate delta G at 298 K for the formation of 1 mole of 03 from 02 in urban smog, where [O2]=0.210 atm and[O3]=5.00x10^-7 atm
What is the rms speed of the molecules : The rms speed of the molecules in 1.5g of hydrogen gas is 1800m/s . A:What is the total translational kinetic energy of the gas molecules, what is the rms speed of the molecules
What current (magnitude) flows in the second wire : A vertical straight wire carrying an upward 30?Acurrent exerts an attractive force per unit length of 5.5×10?4N/m, What current (magnitude) flows in the second wire
What is the probability of getting more than 12000 hits : X is normally distributed with a mean of 250 and a standard deviation of 40. What value of X does only the top 15% exceed?
Compute how much titrant is required to reach : For the titration of 50.00 mL of 0.0200 M 2-(N-Morpholino)ethanesulfonic acid with 0.09900 M NaOH, calculate how much titrant (mL) is required to reach a pH of 9.29 mL in the receving flask.
The standard deviation is a better measure of risk than : The Morrissey Company's bonds mature in 7 years, have a par value of $1,000, and make an annual coupon payment of $70. The market interest rate for the bonds is 8.5%. What is the bond's price?
Provide alternative to cracking down as means of increasing : Explain carefully in terms of production theory why it might be that no amount of "cracking down" can increase worker productivity at CF&D.  Provide an alternative to cracking down as a means of increasing the productivity of the sheet metal workers..
Determine the magnetic field due to wire b : Two long straight parallel wires are 12cm apart. Wire A carries 1.5A current. Wire B's current is 4.0A in the same direction, Determine the magnetic field due to wire B at the position of wire A

Reviews

Write a Review

Basic Statistics Questions & Answers

  Effect of a level for one factor depends on which level

When the effect of a level for one factor depends on which level of the other factor is present, use: Select one:

  Estimate proportion of customers using food stamps

Estimate the proportion of customers that will be using food stamps at his store. How large a sample is required to estimate the true proportion to within 3% with 98% confidence?

  Confidence interval for variance and standard deviation

Find the 90% confidence interval for the variance and standard deviation for the time it takes a state police inspector to check a truck for safety if a sample of 27 trucks has a standard deviation of 6.8 minutes.

  Probability brand manager in houston has base salary

Houston is $19,900 and in Los Angelos is $21,800. What is the probability that a brand manager in Houston has a base salary in excess of $100,000?

  Bell curve-standard deviation-statistical significance

In a research study, what does statistically significant mean? How are decisions made on data based on significance? What do you do with data that is not significantly different?

  Question regarding algebra-polynomials

If a manufacturer charges 'p' dollars each for shirts, then he expects to sell 2000-100p shirts per week. What polynomial represents the total revenue expected for a week?

  Hypothesis testing for soft-drink manufacturer

A soft-drink manufacturer claims that its 12-ounce cans do not contain, on average, more than 30 calories. A random sample of 16 cans of this soft drink, which were checked for calories

  Finding percent of variation in starting salaries

Based on this sample information find out what percent of variation in starting salaries is described by GPA, and find out the equation that would forecast salary from GPA. Give a scatter plot.

  Evaluate the estimated margin of error

Construct the confidence interval to find the estimated margin of error. Then find the sample mean - A biologist reports a confidence interval of (3.3,4.5) when estimating the mean height (in centimeters) of a sample of seedlings.

  Examined the effect of body position on blood pressure

Examined the effect of body position on blood pressure

  Criticizing the managers credit plan

Find the probability that a customer with 2 or more late payments will actually default on his payments and, in light of this probability, criticize the manager's credit plan.

  Test claim loss mean if alpha value is given

A sample of 40 random weeks finds a weekly loss mean of $3200 with a standard deviation of $750. Test their claim at the a=0.05 level.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd