Explain how confidence intervals will change

Assignment Help Basic Statistics
Reference no: EM13112405

Pop. mean = 88.96
Pop. std. dev. = 68.38
Sample size = 30
Sample mean = 89.58
Sample std. dev. = 19.88

suppose that you are part of select marketing group. This select group has been enquired to consider Colorado City Convention and Visitors Bureau survey of 25 hotels in local area. Survey is concerned with current availability of rooms. Availability of rooms was as follows: 90, 72, 75, 60, 75, 72, 84, 72, 88, 74, 105, 115, 68, 74, 80, 64, 414, 82, 48, 58, 60, 80, 48, 58, and 108. Each person in marketing group should choose the sample of 10 hotels from the list.

Consider average available for all hotel rooms from previous assignment. Recognize point estimate of average number of available hotel rooms in this lesson from each sample. Create and Interpret 95% confidence level for true mean number of available hotel rooms, based on point estimate of each sample. Explain how confidence intervals will change depending on whether population standard deviation is known or unknown.

Reference no: EM13112405

Questions Cloud

Conducting t test for testing hypothesis : To investigate the efficacy of a diet, a random sample of 16 male patients is drawn from a population of adult males using the diet. The weight of each individual in the sample is taken at the start of the diet and at a medical follow up 4 weeks l..
Find out the most evidence of solid bones : Some vertebrate animals lack marrow cavities in many bones. Using your knowledge of bone structure, predict in which of the following you would expect to find the most evidence of solid bones.
Calculating solubility of copper sulfide : Work out the solubility of copper(II)sulfide. Take it that 1 litre of the mixture weighs 1 kg. (in g/100g), CuS (s) Cu^2+ (aq) + S^2- (aq)
What is difference between decontamination, sterilization : What is the difference between decontamination, sterilization, sanitization, and degermation? Which one offers the highest level of control? Which one offers the lowest level of control?
Explain how confidence intervals will change : Based on point estimate of each sample. Explain how confidence intervals will change depending on whether population standard deviation is known or unknown.
Hypothesis testing-z and p value : A furniture store claims that a specially ordered product will take, on average, mean= 35 days (5 weeks) to arrive. The standard deviation of these waiting times is 5 days.
Name the agent that causes frameshift mutations : Create a frameshift mutation and indicate the effect the mutation will have on the primary structure of the protein. NAme the agent that causes frameshift mutations.
Test of hypothesis-z statistic and p-value : A manufacturer claims that the mean lifetime, mean, of its light bulbs is 52 months. The standard deviation of these lifetimes is 7 months. Ninety bulbs are selected at random, and their mean lifetime is found to be 55 months.
Finding the concentration of nacl in final solution : During the course of an experiment, a 0.300 M NaCl solution with an initial volume of 25.0 ml is diluted to a total final volume of 26.0 ml. What is the concentration of NaCl in the final solution?

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!

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