8,918 Answered Questions for the topic statistics

Statistics

12/09/22

treu or false statement about mean
the number of values smaller than the mean is equal to the number of values that exceed it
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Statistics

12/09/22

Probability Coin Test

Two biased coins are tossed 144 times. 50 trials are both heads and 39 trials are both tails out of these 144 trials. Among the rest, 25 trials have head in the first coin while tail in the second... more
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Statistics English Writing

12/09/22

In need of a tutor for writing an annotated bibliography on a journal article for a statistics course:
Within the academic journal article I must find and define: -Highlighting the independent, dependent, operational definition of both, threats to internal validity, external validity and construct... more
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Statistics Probability

12/08/22

I NEED THIS ANSWERED ASAP! THANK YOU IN ADVANCE!
The table below lists salaries (in thousands of dollars) from a sample of people with degrees in 3 different... more
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Statistics Probability

12/08/22

I NEED THIS ANSWERED ASAP!! THANK YOU IN ADVANCE!
16. The table below lists the results of 200 rolls of a 6-sided die. Use a chi-square goodness of fit test to determine if the die is fair (and thus each side is equally likely to be observed). Use... more
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Statistics Probability

12/08/22

I NEED THIS ANSWERED ASAP!! THANK YOU IN ADVANCE!!
Muriel Bristol says that milk should be poured first into tea and, conversely, that tea should NOT be poured into milk and that she can tell the difference. To test this claim, outside of the view... more
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Statistics Probability

12/08/22

I NEED THIS ANSWERED ASAP!! THANK YOU IN ADVANCE!!
2. Using the same data on NFL stadium seating capacity from the data set on Blackboard, answer the following questions. (https://www.stadiumsofprofootball.com/comparisons/).a) Plot a... more
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Statistics Math Biostatistics

12/07/22

STATISTICS CHAPTER 8
According to a study conducted,the proportion of americans who were afraid to fly in 2012 was 0.10. A random sample of 150 americans resulted in 13 indicating that they were afraid. Explain why... more
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Statistics Biostatistics

12/07/22

From a full deck of cards, you are dealt two cards. What is the probability of getting i) A king and a Queen? ii) Two cards from the same suit? iii) A king and a Queen from the same suit?
From a full deck of cards, you are dealt two cards. What is the probability of gettingi) A king and a Queen?ii) Two cards from the same suit?iii) A king and a Queen from the same suit?
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Statistics

12/07/22

statistics hypothesis testing
 Pain medications sometimes come with side effects. One side effect is dizziness. A researcher wanted to determine if some pain medications produced more or less dizziness than others. The results... more
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Statistics Biostatistics

12/06/22

Biostat/ stat --> Discrimination / calibrarion
what is the difference between calibration and discrimination in data analysis? an dhow do we measure them
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Statistics Biostatistics

12/06/22

From a full deck of cards, you are dealt two cards. What is the probability of getting i) A king and a Queen? ii) Two cards from the same suit? iii) A king and a Queen from the same suit?

From a full deck of cards, you are dealt two cards. What is the probability of gettingi) A king and a Queen? ii) Two cards from the same suit? iii) A king and a Queen from the same suit?
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Statistics

12/05/22

Need help on this !!
In a survey, 12 people were asked how much they spent on their child's last birthday gift. The results were roughly bell-shaped with a mean of $36 and standard deviation of $9. Find the margin of... more
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Statistics Data Science

12/05/22

plotting a bell curve with percentile information
I have three sets of numbers representing a minimum, 25th percentile, a mean, a median, 75th percentile and a maximum. While I do not have any individual raw data and do not know the standard... more
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Statistics

12/05/22

Distribution statistic

A Acme company manfucature widgets. The distribution of widgets weights is bell-shaped. The widget weights have a mean of 46 ounces and a standard deviation of 5 ounces ( use the standard deviation... more
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Statistics

12/04/22

statistics homework review helppp
Giving a test to a group of students, the grades and gender are summarized below A B C Total Male 15 17 8 40 Female 16 5 3 24 Total 31 22 11 64 If one student is chosen at random, Find the... more
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Statistics

12/03/22

Statistics homework help needed
The heights of adult men in America are normally distributed, with a mean of 69.7 inches and a standard deviation of 2.61 inches. The heights of adult women in America are also normally... more
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Statistics

12/02/22

A coin is tossed and an eight - sided die numbered 1 through 6 is rolled . Find the probability of tossing a tail and then rolling a number greater than 5
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Statistics

12/02/22

Statistics and Probability

In a survey, 32 people were asked how much they spent on their child's last birthday gift. The results were roughly bell-shaped with a mean of $43 and standard deviation of $10. Find the margin of... more
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Statistics

12/02/22

Statistics and Probability

You intend to estimate a population mean μμ with the following sample. 53.5 44.2 38.2 45 48.1 42.9 42.2 49.6 41.5 28.3 You believe the population is normally distributed. Find the 80% confidence... more
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Statistics

12/01/22

According to the Nielsen Company, the mean number of TV sets in a U.S. household in 2014 was 2.24. Assume the stamdard deviation is 1.1. A sample og 80.
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Statistics

11/30/22

tnagerine problem
A banana republic held a parliamentary election, and every one of the citizens voted. Everyone who voted for the tangerine party likes tangerines. 90% of the people who voted for one of the other... more
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Statistics Probability

11/30/22

Confidence Interval
The amount of trash generated by US households (in lbs per day) is Normally distributed. You a random sample of 8 people gives you an average of 10.00 lbs and a sample stdev of 5 lbs. What is the... more
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Statistics Math Sat Math

11/30/22

What's the probability that there are no more than 6 ​non-smartphone owners?
According to a​ study, ​9% of teenagers​ (age 13-18) have a smartphone. Suppose eight teenagers are selected at random. What's the probability that there are no more than 6 ​non-smartphone owners?
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Statistics

11/29/22

Statistics and Probability

the time it takes me to wash the dishes is uniformly distributed between 6 minutes and 11 minutes. What is the probability that washing dishes tonight will take me between 8 and 10 minutes? Give... more
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