Standard deviation of sampling distribution approach

Assignment Help Basic Statistics
Reference no: EM13108212

Let x be the random variable representing amount of sleep each adult in New York City got last night. Let a sampling distribution of sample means x. As sample size becomes increasingly large, determine value will mean μ x of x distribution approach? What value will standard deviation σ x of sampling distribution approach? How do two x distributions for sample size n = 50 and n = 100 compare?

Reference no: EM13108212

Questions Cloud

Write a non directional hypothesis : The effects of instrumental, relaxing music on brain changes using a between subjects design. I Who will be your participants(number, age, gender) II How will you determine the order in which participants receive which level/condition of music?
Example of a non-parametric test : In general, when the dependent variable is neither interval nor ratio in level of measurement -- i.e., is not numeric -- a nonparametric statistical test is required to test the null hypothesis.
Create a crosstab query : Create a crosstab query to show how many enrollments took place in various conventions from different companies. Also show the total number of enrollments in each convention.
Calculate the mean and spread of the comparison distribution : If you are performing a hypothesis test using a z statistic in which you sampled 50 people and found an average SAT verbal score of 542 (assume we know the population mean to be 500 and the standard deviation to be 100), calculate the mean and spr..
Standard deviation of sampling distribution approach : What value will standard deviation σ x of sampling distribution approach? How do two x distributions for sample size n = 50 and n = 100 compare?
Parametric dependent and independent samples : What are differences between parametric dependent and independent samples? My facilitator has been known to describe a scenario with two objects and an associated measurement versus another scenario with one object and two associated measurements ..
Determining stock price : Mid-State BankCorp recently declared a 7-for-2 stock split. Prior to the split, the stock sold for $80 per share. If the firm's total market value is unchanged by the split.
How much error, on average, would you expect : For a population with a mean of 70 and a standard deviation of 20, how much error, on average, would you expect between the sample mean and the population mean for each of the following sample sizes.
Steps of conducting a hypothesis test : Explain the general process and the steps included in conducting a hypothesis test? What is the difference between parametric and nonparametric hypothesis testing?

Reviews

Write a Review

Basic Statistics Questions & Answers

  Information about the spending plans of all adults

This confidence interval can't be trusted to give information about the spending plans of all adults. Why not?

  Build a histogram and a percentage polygon

The following data represent the cost of electricity for the period of July 2008 for a random sample of 50 one-bedroom apartments in a large city.

  Normal distribution of sat critical reading scores

Use the normal distribution of SAT critical reading scores for which the mean is 507 and the standard deviation is 121. Assume the variable x is normally distributed.

  Integer programming model for production

During the war with Iraq in 1991 the Terraco Motor Company produced a lightweight, all terrain vehicle code named "J99 Terra" for the military. The company is now planning to sell the Terra to the public.

  Difference in mean times

Commute times: three random samples of time in minutes that commuters are stuck in traffic are shown. At anova =0.05, is there a difference in the mean times among the three cities?

  Central limit theorem to make various estimates

The population's standard deviation is 2.00 hours per week. Based on a sample of 49 students, Healthy Lifestyles Incorporated (HLI) would like to apply the central limit theorem to make various estimates.

  Using spss to perform a two independent sample t-test

When using SPSS to perform a 2 independent sample t-test, the P-Value was .136...with alpha set to .05. I have to decide to accept or reject the null hypothesis.

  Major benefit of two-way anova over several one-way anova

A major benefit of two-way ANOVA over several one-way ANOVAs, If an F test for interaction is significant.

  Sample size for finding the population proportion

Supposing that the entire $10,000 can be spent on tires (ignoring other costs), and that the true fraction that will fail is approximately .05, can NHTSA attain its goal while staying within the budget? Describe.

  Determining florida lottery

In the Florida lottery, six numbers from 1 to 53 must be selected. to win the jackpot, the six numbers must match the draw numbers.

  Finding probability-mean and standard error

Suppose that the population of heights of female college students is approximately normally distributed with mean m of 66.24 inches and standard deviation s of 5.07 inches.

  Calculating standard error of the mean

The standard deviation of the population of adult female height scores is 3 inches. A random sample of 50 women yields a mean height of 64 inches. Calculate the standard error of the mean.

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