User Account

All Pages

Find probability that the average pregnancy time length

Assignment Help Basic Statistics
Reference no: EM132844802

1) A women's pregnancy is said to be a normally distributed with an average time of 266 day and standard deviation of 16 days. Suppose 64 pregnant women are randomly selected. What is the probability that the average pregnancy time length is between 262 and 270 days?

2) A survey of 100 German shepherd dogs in an animal shelter reveal that the mean weight of a male German shepherd dog is 35kg, with a standard deviation of 5kg.What is the probability that the:

a) Mean weight of a male German shepherd to be between 31.5kg and 37kg.

b) Mean weight of a male German shepherd to be more than 36kg.

c) Mean weight of a male German shepherd to be less than 30 kg.

3) A manager in a bottling factory after measures of soda bottles founds that the mean weight is 32,3 ounce(oz) and standard deviation 0,3 ounce. The weight is normally distributed. If a customer is buying a pack of 4 bottles what is the probability the mean weigh of those 4 bottles to be more than 32 ounces. (answer: 0.9082)

4) A random sample of 100 men of the age 23years in a specific city gives mean weight 73.6 kg with standard deviation of 10 kg. Find the 99% confidence interval of the population mean using the sample mean weight of all 23years old men of this specific city.

5) A large industrial complex consist of two factories A and B. A sample of 100 workers from the A factory gave an average time of 30 minutes to complete the specific work with standard deviation of 3 minutes. For the same work in factory B a sample of 120 workers gave average time of 27 minutes with standard deviation of 2 minutes. Calculate for each factory a 95% confidence interval for the average time for the specific work.

6) A random sample of 100 home health visitors reported the number of visits to homes that they did last month. The mean value of the sample was 55 and the standard deviation 11. Find the 80% and 95% confidence interval of the mean number of visits.

Reference no: EM132844802

Questions Cloud

What is the net realizable value of the accounts receivable : Net credit sales totaled P4,500,000 during the year while collections amounted to P4,400,000. What is the net realizable value of the Accounts Receivable
Evaluate the implications of the aggressive use of debt : Understand innovative approaches to the use of debt in business. Evaluate the implications and appropriateness of the aggressive use of debt.
Measure the effect of the new regimen on performance : I am confused on how exactly to design an experiment that uses a randomized approach to measure the effect of the new regimen on performance.
Why is evaluating training an important part of strategic : Discuss why is evaluating training an important part of strategic training? Discuss the ways a HR manager for a commercial airline can develop a realistic job?
Find probability that the average pregnancy time length : 1) A women's pregnancy is said to be a normally distributed with an average time of 266 day and standard deviation of 16 days. Suppose 64 pregnant women are ran
What is the maximum NPR MedTech should pay for IV Pumps : Assuming that the appropriate cost of capital for discounting the cash flow is 12 percent, what is the maximum NPR MedTech should pay for IV Pumps
Develop a payoff table that will summarize hale profits : a. Develop a payoff table (decision table) that will summarize Hale's profits (in thousands of dollars), the associated decision alternatives and state of natur
Compute the average historical growth rate : The company currently has outstanding a bond with a 11.0 percent coupon rate. Compute the average historical growth rate
What are the identified four major engines driving change : The first key factor in the development of a successful 3PL is the 3PL mission statement. List 3 other factors? What are identified four major engines driving?

Reviews

Write a Review

Basic Statistics Questions & Answers

  Statistics-probability assignment

MATH1550H: Assignment:  Question:  A word is selected at random from the following poem of Persian poet and mathematician Omar Khayyam (1048-1131), translated by English poet Edward Fitzgerald (1808-1883). Find the expected value of the length of th..

  What is the least number

MATH1550H: Assignment:  Question:     what is the least number of applicants that should be interviewed so as to have at least 50% chance of finding one such secretary?

  Determine the value of k

MATH1550H: Assignment:  Question:     Experience shows that X, the number of customers entering a post office during any period of time t, is a random variable the probability mass function of which is of the form

  What is the probability

MATH1550H: Assignment:Questions: (Genetics) What is the probability that at most two of the offspring are aa?

  Binomial distributions

MATH1550H: Assignment:  Questions:  Let’s assume the department of Mathematics of Trent University has 11 faculty members. For i = 0; 1; 2; 3; find pi, the probability that i of them were born on Canada Day using the binomial distributions.

  Caselet on mcdonald’s vs. burger king - waiting time

Caselet on McDonald’s vs. Burger King - Waiting time

  Generate descriptive statistics

Generate descriptive statistics. Create a stem-and-leaf plot of the data and box plot of the data.

  Sampling variability and standard error

Problems on Sampling Variability and Standard Error and Confidence Intervals

  Estimate the population mean

Estimate the population mean

  Conduct a marketing experiment

Conduct a marketing experiment in which students are to taste one of two different brands of soft drink

  Find out the probability

Find out the probability

  Linear programming models

LINEAR PROGRAMMING MODELS

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