In a study to estimate the proportion of residents in a

Assignment Help Basic Statistics
Reference no: EM13628310

In a study to estimate the proportion of residents in a city that support the construction of a new bypass road in the vicinity, a random sample of 1600 residents were polled. Let X denote the number in the sample who supported the proposal. To estimate the true proportion in support of the plan, we can compute p^=X+1600?/21600. The estimator p^ has bias

A. 1/(2×40).

B. 40/2.

C. 1/40.

D. 1/1600.

E. 0, so unbiased.

Reference no: EM13628310

Questions Cloud

Find the probability that a data value picked at random : find the probability that a data value picked at random from a normally distributed population will have a standard
The fda is comparing the mean caffeine contents of two : the fda is comparing the mean caffeine contents of two brands of cola. independent random samples of 6-oz. soda cans of
The fda is comparing the mean caffeine contents of two : the fda is comparing the mean caffeine contents of two brands of cola. independent random samples of 6-oz. soda cans of
Let x represent the absolute value of the difference : let x represent the absolute value of the difference between the number of heads and the number of tails when a coin is
In a study to estimate the proportion of residents in a : in a study to estimate the proportion of residents in a city that support the construction of a new bypass road in the
The time in hours for a worker to repair an electrical : the time in hours for a worker to repair an electrical instrument is a normally distributed random variable with a mean
A political strategist calims that 55 of voters in madison : a political strategist calims that 55 of voters in madison county support his candidate. in a poll of 200 randomly
Suppose that 17 of the undergraduates are seniors while the : in a survey of undergraduate library usage it was found that 76 of seniors 59 of juniors 50 of sophomores and 28 of
The purpose of this process is to ensure the defect rate is : in a tire factor the quality control inspector examines a randomly chosen sample of 16 tires. when more than one

Reviews

Write a Review

Basic Statistics Questions & Answers

  What does the value of ten in the equation indicate

Assume the least squares equation is Y' = 10 + 20X. What does the value of 10 in the equation indicate? Y intercept. For each unit increased in Y, X increases by 10.

  Determining hypotheses and test tails

What are the appropriate H0 and Ha for each of the following research studies? In addition, note whether the hypothesis test is one- or two-tailed.

  Final averages are typically approximately normally

final averages are typically approximately normally distributed with a mean of 71 and a standard deviation of 8. your

  Standard deviation of number of useable parts in package

If the manufacturer sells the parts in packages of 10 parts, what are the mean and standard deviation of the number of useable parts in a package?

  Explain the factors to be considered fixed effects

Are the factors to be considered fixed effects? Does it seem reasonable that if you were to repeat the survey, you would select the same sexes and species?

  Using p-value approach-interpret the value of p-value

(A) At the 0.05 level of significance, use the six step critical value approach to hypothesis testing to try and prove that the 2004 proportion has increased. (B) Use the 5 step p-value approach. Interpret the meaning of the p value.

  Chi square test for numbers of citations

Can we conclude that there is a difference in number of citations written between the officers? Use the 0.05 level of significance.

  Find the best-case and worst-case npvs what is the

1 assume you are presented with the following mutually exclusive investments whose expected net cash flows are as

  Weight of tootsie rolls during manufacture

Discuss the factors which might cause variation in the weight of Tootsie Rolls during manufacture.

  Estimated regression mode

1. In a regression model involving 50 observations, the following estimated regression model was obtained:

  Find the probability that the amount of cosmic radiation

If the amount of cosmic radiation to which a person is exposed while flying by jet across the US is a random variable having the normal distribution with µ=5.35 mrem, and σ = 0.59 mrem.

  Find out optimal decision

Find out optimal decision

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