User Account

All Pages

What is the probability that an 18-year-old man

Assignment Help Basic Statistics
Reference no: EM132408996

Suppose the heights of 18-year-old men are approximately normally distributed, with mean 68 inches and standard deviation 4 inches.

(a) What is the probability that an 18-year-old man selected at random is between 67 and 69 inches tall? (Round your answer to four decimal places.)

(b) If a random sample of twenty-eight 18-year-old men is selected, what is the probability that the mean height x is between 67 and 69 inches? (Round your answer to four decimal places.)

(c) Compare your answers to parts (a) and (b). Is the probability in part (b) much higher? Why would you expect this?

The probability in part (b) is much lower because the standard deviation is smaller for the x distribution.

The probability in part (b) is much higher because the mean is larger for the x distribution.    

The probability in part (b) is much higher because the standard deviation is smaller for the x distribution.

The probability in part (b) is much higher because the mean is smaller for the x distribution.

The probability in part (b) is much higher because the standard deviation is larger for the x distribution.

Reference no: EM132408996

Questions Cloud

Discuss the web interoperability including its advantages : Discuss the web interoperability including its advantages.
What is the best estimate of the proportion of adults : What is the best estimate of the proportion of adults who believe that immediate government action is? required?
Margin of error and? confidence interval for the? study : The study is based on responses from 1100 athletes. What are the margin of error and? 95% confidence interval for the? study?
Sampling method appears to be sound or is flawed : Use critical thinking to determine whether the sampling method appears to be sound or is flawed.
What is the probability that an 18-year-old man : What is the probability that an 18-year-old man selected at random is between 67 and 69 inches tall? (Round your answer to four decimal places.)
Analyzing the principle of least privilege : Analyzing the principle of least privilege. Use an example from the news. Cite your sources in a clickable reference list at the end.
Practices for incident response in the cloud : The best practices for incident response in the cloud.
Find the indicated probability : An airline estimates that 94% of people booked on their flights actually show up. If the airline books 73 people on a flight for which the maximum number is 71
Find the probability that a student has either a visa card : Find the probability that a student has either a Visa card or a MasterCard. (Round your answer to 2 decimal places.)

Reviews

Write a Review

Basic Statistics Questions & Answers

  Suppose that in ny state 35% of voters are democrats

Suppose that in NY State, 35% of voters are Democrats, 30% are Republicans, and 11% are independent. You are conducting a poll by randomly calling registered voters. In your first four calls, what is the probability that you talk to:

  Evaluating the relationship between tenure and divorce

What's the most appropriate procedure for evaluating the relationship between tenure and divorce? What is the correlation and how can it be interpreted in terms of magnitude, direction and practical importance?

  What is the conditional joint distribution

Conditioning independent Poisson variables on their sum. Let N, be independent Poisson variables with parameters ?i, Think of the N, as the number of Points.

  A random sample of the lifetime of 49 ultraillum light

a random sample of the lifetime of 49 ultraillum light bulbs has a mean of 3960 hours and a standard deviation of 200

  The factorial moment-generating function

In the proof of Theorem 2 we determined the quantity E[X(X - 1)], called the second factorial moment. In general, the rth factorial moment of X is given by

  Frequency distribution and a relative frequency distribution

Construct a frequency distribution and a relative frequency distribution for the light bulb data with a class width of 20

  Discuss about the potential sample means

Suppose you are interested in estimating the average number of miles per gallon of gasoline your car can get.

  Average movie budget

Test to determine if action movies cost more than the average movie budget. Solve using the Traditional Method. Use a= .05.

  Confidence interval for the population mean

You want to be able to state that the population mean is lower than some value with 95% confidence. What t value would be used to find the 95% one-tailed confidence interval for the population mean when n = 12 and the population is known to be nor..

  Construct a bar chart a pie chart and a pareto chart for

question the owner of a restaurant serving continental-style entrees has the business objective of learning more about

  Which category has the fewest players

a. Which of the four categories has the most players?b. Which category has the fewest players?

  Type of alcoholic beverage favored

Give the sample space S and the probability model for the random event "type of alcoholic beverage favored."

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!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +1-415-670-9521

Phone: +1-415-670-9521

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

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