Population of College Cities College students often make up a substantial portion of the population of college cities andtowns. State College, Pennsylvania, ranks first with 71.1% of its population made up of college students. What is theprobability that in a random sample of 152 people from State College, more than 50 are not college students? Round thefinal answer to at least 4 decimal places and intermediate z-value calculations to 2 decimal places.P(X>50)=

Given, 71.1% of cities and towns population made up of a college student. We are asked to find the…

Answered: on of College Cities College students…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Suppose that the amount of time that students spend studying in the library in one sitting is normally distributed with mean 49 minutes and standard deviation 22 minutes. A researcher observed 44 students who entered the library to study. Round all answers to 4 decimal places where possible. Find the probability that the randomly selected 44 students will have a total study time more than 1936 minutes. The top 20% of the total study time for groups of 44 students will be given a sticker that says "Great dedication". What is the least total time that a group can study and still receive a sticker? minutes What is the distribution of ∑x∑x? ∑x∑x ~ N(
Suppose that the amount of time that students spend studying in the library in one sitting is normally distributed with mean 41 minutes and standard deviation 18 minutes. A researcher observed 41 students who entered the library to study. Round all answers to 4 decimal places where possible. The top 10% of the total study time for groups of 41 students will be given a sticker that says "Great dedication". What is the least total time that a group can study and still receive a sticker?
In the following table x is a random variable representing the number of trees per mile of road on randomly selected streets with a 25 mph speed limit in a major city while y represents the average speed of cars in mph sampled over a one-hour period at the same time of day. X 45 1.0 25 15 30 20 50 40 45 25 ) Draw a Scatter Diagram of the data. Remember to label the axes appropriately and choose a consistent scale. ^ Based on the scatter diagram, would you estimate the correlation coeffici positive, close to zero, or negative?
Assume that adults have IQ scores that are normally distributed with a mean of mu = 100 and a standard deviation sigma = 20. Find the probability that a randomly selected adult has an IQ between 84 and 116 and type an integer or decimal rounded to four decimal places. Make sure to use the positive or negative z score charts attached, in the eBook on MSL, or in a hardcopy of the textbook.
Below you’ll find summary statistics and a frequency distribution about apartments located in Vienna,Austria. The variable in particular this information is for contains the “# of square meters in the kitchenper apartment.” I have limited the sample to where only a specific district in the city is shown.Summary statistics, using the observations 401 – 602for the variable 'kitchen_sq' (202 valid observations)Mean 3.5347Median 0.00000Minimum 0.00000Maximum 120.00Standard deviation 9.2533C.V. 2.6179Skewness 9.9905Ex. kurtosis 122.565% percentile 0.0000095% percentile 9.8500Interquartile range 8.000Missing obs. 0a. Using the information as furnished above, construct a 95% confidence interval for the truepopulation mean of kitchen square meters in this district in Vienna. Show and describe yourwork. b. Explain, in plain English, what a confidence interval is. Use the numbers used above in theresults above to frame the discussion.
When dragons on planet Dathomir lay eggs, the eggs are either green or yellow. The biologists have observed over the years that 19% of the eggs are yellow, and the rest green. Next spring, the lead scientist has permission to randomly select 57 of the dragon eggs to incubate. Consider all the possible samples of 57 dragon eggs. What is the mean (μ) number of yellow eggs in samples of 57 eggs?(Please show your answer to 1 decimal place) What is the standard deviation (σ) in the number of yellow eggs in samples of size 57? (Please show your answer to 1 decimal place)
a recent survey found that just 66 percent of young adults aged 18 to 24 years have always believed the world is round, people who do not believe the world is round are called flat earthers. A- describe the sampling distribution of P^ ( p hat) for a random sample of 578 young a dults aged 18-24 years old B- in a random sample of 578 young adults aged 18 to 24 years old, what is the probbility that 400 or more would say that they have always elieved the world is round C- In a random sampe of 578 young adults aged 18 to 24 years old, what is the probability that at most 200 would say that they have always believed the world is round.
A recent survey of 437 restaurant workers found that 279 had at least one other job. Find the sample proportion of restaurant workers who had at least one other job. Round your result to 3 decimal places. Group of answer choices ?̂=0.606p^=0.606 ?̂=0.651p^=0.651 None of these ?̂=0.638p^=0.638 ?̂=0.627
Can i get help with this problem? the sample proportion denoted phat is given by the formula phat(p-hat)=x/n where x s the number of individuals with a specified characteristic in a sample of n individuals. 1. find: phat(p-hat_ if the students poll surveyed 1200 people that vacation during the summer and asked if they plan to work while on vacation. Of those surveyed, 552 indicated that they plan to work on vacation. Find the sample proportion of individuals polled that plan to work on vacation. So, Students estimates that from the value of phat(p-hat) found above that ____________ or ________ % of adults who vacation plan to work on vacation,

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on of College Cities College students often make up a subs ate College, Pennsylvania, ranks first with 71.1% of its popu y that in a random sample of 152 people from State College, ver to at least 4 decimal places and intermediate z-value cal