Suppose that public opinion in a large city is 72 percent in favor of allowing a large recycling plant to be constructed using taxpayer funds and 28 percent against such a build. If a random sample of 300 people from this city is interviewed, what is the approximate probability that more than 100 of these people will be against increasing taxes? Are we suppose to use binomial distribution formula or the sampling distribution of the proportion formula for this problem?

Q: 39)   As the sample size increases, the standard error of the distribution of sample means:   a…

A: We have to find correct answer..

Q: It is assumed that a production process may produce some defective items. It is found that 12 items…

A: It is given that, the number of defectives out of 100 is 12.

Q: Suppose a target population is unimodal and right skewed and a sample is collected from this…

A: It is given that the statement about to the right skewed population. Here, need to find out the…

Q: thee workers' monthly salary follows a normal distribution. The avarage is $3,000 and the variance…

A: From the provided information, Mean (µ) = 3000 Variance (σ2) = 260000 X~N (3000, 260000) Here X be a…

Q: Precisely what is meant by the statement that a population is normally distributed?

A: Generally data comes from different sources might be biased towards a particular property. It could…

Q: We want to test whether two randomly selected polls are different (assume sample size >30). The…

A: Introduction: The standard error of 3% can be assumed to be applicable to both polls. As the result…

Q: n two unbiased estimators, the sampling distribution which has smaller variance is called. Select…

A: In two unbiased estimators, the sampling distribution which has smaller variance is called Efficient…

Q: If we're concerned with making estimates that are more often close to the true value, would we…

A: If we want to make estimates close to the true value, we would prefer a distribution with a small…

Q: Suppose Disneyland wants to determine the menu age of all people attending their California park…

A: As per the Bartleby guildlines we have to solve first three subparts and rest can be reposted....…

Q: When two births are randomly se- lected, the sample space for genders is bb, bg, gb, and gg (where b…

A: This question examines the sampling distribution of the sample proportion of girls from two births.…

Q: Suppose that you draw a random sample from a population where you know the population mean is 36 and…

A:

Q: In the US, 55% of all people have type O blood, 30% have type A blood, 10% have type B blood and 5%…

A: Determine the critical value   Follow the instruction to obtain the chi square critical value:…

Q: We want to test whether two randomly selected polls are different (assume sample size >30). The…

A: It is given that:

Q: You and a friend want to estimate the proportion of undergraduates at a college who favor…

A:

Q: Suppose a clothing store wants to determine the current percentage of customers who are over the age…

A:

Q: is a sampling considered biased?

A: We know that The sampling method is called biased when it favors some outcomes over the others…

Q: 4. A sample mean has a z= +1.0 on the sampling distribution created from the population of…

A:

Q: 8) The distribution of weekly salaries at a large company is unknown with a mean of $1000 and a…

A: The distribution of weekly salaries at a large company is unknown with a mean of $1000 and a…

Q: Now that weddings can be held again you end up being invited to one and you decide to observe the…

A: Given: P( dance track) = =0.2 P( pop song) = 0.3 P( rock song)= 0.15 P( hip hop song) = 0.35  All…

Q: The XYZ Corporation is interested in possible differences in days worked by salaried employees in…

A: applying one way ANOVA on above data:   Mean n Std. Dev Variances budgets 257.4 5 11.7388…

Q: ppose that 97% of Monarch butterflies migrate to Mexico in winter. What is the smallest sample size…

A: Given data, 97% of Monarch butterflies migrate to Mexico in winter p=97%=0.97 What is the smallest…

Q: a distribution is negatively skewed. which is the most probable order from smallest to largest for…

A: A negatively skewed distribution means that there is a 'hump' in the data on the right side of the…

Q: An amusement park keeps track of the percentage of individuals with season passes according to age…

A: Introduction: The claim of the amusement park authorities regarding the proportions of visitors is…

Q: If the original claim is "The majority of student population are full time students.", then this is…

A: Proportion: The percentage of a population that falls into a certain category has been referred to…

Q: If the shape of the population distribution of a variable is non-normal or unknown, how large a…

A:

Q: In the US, 60% of all people have type O blood, 20% have type A blood, 15% have type B blood and 5%…

A: We are rejecting Ho, As P-value < 0.01

Q: To eliminate the effects of either the row or the column variables in a contingency table, a…

A: To eliminate the effects of the row or the column variables in a contingency table, a Marginal…

Q: Assume that the climate conditions on Earth are such that years hotter than the historical average…

A: Assuming that the climate conditions on Earth are such that years hotter than the historical average…

Q: Suppose a certain Statistics instructor wants to estimate the proportion of students who enjoy…

A: since estimate for proportion is not known therefor we take p⏞=0.5 margin of error=E= 0.03 level of…

Q: A surprising fact is that only 56% of all teens use a password on their mobile device. If a poll…

A: It is given that the standard deviation is 1.6%.

Q: In what situations the cluster sampling be preferred?

A:

Q: n the US, 60% of all people have type O blood, 20% have type A blood, 15% have type B blood and 5%…

A: State the hypotheses.   The original claim is, Obtain the degrees of freedom. The degree of…

Q: n general, in the context of a sampling distribution of the sample mean, is the expected value…

A: Given : In general, in the context of a sampling distribution of the sample mean, is the expected…

Q: Suppose that you want to perform a hypothesis test based on independent random samples to compare…

A:

Q: For the population of people in the United States who are at least 18 years of age, approximately 61…

A: The objective of the question is to determine for which sample size it is more likely that greater…

Q: 1. True or False The sampling distribution of the mean will have the same mean as the original…

A: We have to find out given probabiity..

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.