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Statistics

01/21/24

If $642 is budgeted for next week, what is the probability that the actual costs will exceed the budgeted amount? (Round your answer to four decimal places.)

The amount of money spent weekly on cleaning, maintenance, and repairs at a large restaurant was observed over a long period of time to be approximately normally distributed, with mean 𝜇 = $605 and... more

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Statistics

01/20/24

Base on the data above, identify the 5 number summary

Here is a set of sample data. 67 60 61 20 97 74 44 58 36 7 96 68 5 4 98 18 57 13 53 10 40 26 64 28 Base on the data above, identify the 5 number summary , , , ,

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Statistics Writing

01/20/24

Disproportionate Stratified Sampling

Hi!I have an undergraduate mixed-method thesis and my sampling technique is disproportionate stratified sampling technique. My strata are students and faculty members. The population of students is... more

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Statistics

01/20/24

Identify the 5 number summary

Here is a set of data. 13 240 314 318 354 396 492 504 511 558 856 920 922 952 Identify the 5 number summary (min, Q1, median, Q3, max) Correct, Correct, Correct, Incorrect,

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Statistics

01/20/24

Identify the 5 number summary

Here is a set of sample data. 12 35 66 44 43 78 52 93 90 92 68 46 19 61 28 95 98 5 59 37 70 4 24 40 Base on the data above, identify the 5 number summary Correct, Incorrect, Correct, Incorrect, more

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Statistics

01/20/24

An observation is considered an outlier if it is below: An observation is considered an outlier if it is above:

The five number summary of a dataset was found to be:47, 49, 58, 66, 70An observation is considered an outlier if it is below:An observation is considered an outlier if it is above:

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Statistics

01/12/24

Only about 11% of all people can wiggle their ears. Is this % different for millionaires? Of the 303 millionaires surveyed, 18 could wiggle their ears.

What can be concluded at the = 0.10 level of significance? Please just find the test statistic (z), and what p-value is.

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Statistics

01/11/24

You would like to be 99% confident that you estimate is within 4% of the true population proportion. How large of a sample size is required?

You want to obtain a sample to estimate a population proportion. At this point in time, you have no reasonable preliminary estimation for the population proportion.

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Statistics Writing

01/10/24

Validating Survey Questions

I have a thesis ongoing and I was advised to test my survey in a reliability test. The following are the type of questions found in my survey:1) Likert scale2) Yes or No3) Multiple choice questions... more

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Statistics Writing

01/10/24

Validation Checklist Passing Score

Hi!I have a mixed-method thesis ongoing. I'm currently on the validation stage of my survey and interview questions. I have adopted a validation checklist from the internet composing of 15 items... more

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Statistics

01/10/24

Cronbach alpha for non-Likert & Likert survey

Hi!I have a thesis ongoing and I have a survey that needs for reliability testing. I was advised to do a Cronbach's alpha test. My survey consists of two parts: Part 1: All questions have multiple... more

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Statistics

01/09/24

Sampling inquiry for thesis

Hi!I have a mixed-method thesis ongoing and I plan collecting data on my own college (namely college X), specifically from students and faculty members on my department. Evidently, that would be... more

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Statistics

01/04/24

Age Volume Cumulative Frequency Relative Frequency 0-20 84 84 21-40 137 41-60 155 61-80 194 81-100 212

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Statistics

01/03/24

Data set, Chebyshev's Theorem

Consider a data set that has a mean of 18.1 and a standard deviation of 6.4. According to Chebyshev's Theorem, give an interval that has at least 88.9% of the data.__________ to ____________

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Statistics

01/03/24

What percentage of the data is withing 2.5 standard deviations of the mean?

I know what 1, 2, and 3 is, but I have scoured far and wide and not found 2.5.

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Statistics Math Calculus

12/29/23

Find the smallest number n of terms needed to obtain an approximation of the series ∞∑k=1 3/k^3, accurate to 10^-6

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Statistics Math Calculus

12/29/23

Estimate the error in using the partial sum of 65 terms of the series ∞∑k=1 9/k^2

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Statistics

12/27/23

A standard pair of six-sided dice is rolled. What is the probability of rolling a sum less than 11 ?

A standard pair of six-sided dice is rolled. What is the probability of rolling a sum less than 1111? Express your answer as a fraction or a decimal number rounded to four decimal places.

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Statistics

12/26/23

What is the expected value of your bet? Round your answer to two decimal places. Losses must be expressed as negative values.

Suppose that you and a friend are playing cards and you decide to make a friendly wager. The bet is that you will draw two cards without replacement from a standard deck. If both cards are clubs,... more

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Statistics Biology Microbiology

12/26/23

what are all the statistical tests i can do for such data?

i did an experiment testing out the inhibitory effect of 3 oils on a strain of bacteria to investigate their effectiveness. what are all the statistical tests i can run on the data now? i also did... more

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Statistics

12/21/23

I need help with the graph and everything else tbh...

To introduce his class to binomial distributions, Mr. Miller does the "Popquiz" activity at the beginning of this section (page 431). Each student in theclass guesses an answer from A through E on... more

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Statistics

12/21/23

Five teachers at Springfield Elementary School are randomly selected without replacement, and the number of years they taught at the school is recorded

Not binomial; there is not a fixed number of trials Not binomial; there are more than two outcomes for each trial Not binomial; the trials are not independent Not binomial; for more than one of... more

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Statistics

12/21/23

About 6% of the population has a particular genetic mutation. 400 people are randomly selected. Find the standard deviation for the number of people with the genetic mutation in such groups of 400.

Please help

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Statistics

12/20/23

3.50 Political Affiliation

Political affiliation. Suppose that in a large population, 51% identify as Democrat. A researcher takes a random sample of 3 people. Use the binomial model to calculate the probability that two of... more

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Statistics

12/18/23

Statics Data Analysis

I am seeking a tutor to assist me with data analysis for program evaluation. If you have experience in data analysis and are available in January 2024, please let me know. Respond to this posting... more

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If $642 is budgeted for next week, what is the probability that the actual costs will exceed the budgeted amount? (Round your answer to four decimal places.)

Base on the data above, identify the 5 number summary

Disproportionate Stratified Sampling

Identify the 5 number summary

Identify the 5 number summary

An observation is considered an outlier if it is below: An observation is considered an outlier if it is above:

Only about 11% of all people can wiggle their ears. Is this % different for millionaires? Of the 303 millionaires surveyed, 18 could wiggle their ears.

You would like to be 99% confident that you estimate is within 4% of the true population proportion. How large of a sample size is required?

Validating Survey Questions

Validation Checklist Passing Score

Cronbach alpha for non-Likert & Likert survey

Sampling inquiry for thesis

Age Volume Cumulative Frequency Relative Frequency 0-20 84 84 21-40 137 41-60 155 61-80 194 81-100 212

Data set, Chebyshev's Theorem

What percentage of the data is withing 2.5 standard deviations of the mean?

Find the smallest number n of terms needed to obtain an approximation of the series ∞∑k=1 3/k^3, accurate to 10^-6

Estimate the error in using the partial sum of 65 terms of the series ∞∑k=1 9/k^2

A standard pair of six-sided dice is rolled. What is the probability of rolling a sum less than 11 ?

What is the expected value of your bet? Round your answer to two decimal places. Losses must be expressed as negative values.

what are all the statistical tests i can do for such data?

I need help with the graph and everything else tbh...

Five teachers at Springfield Elementary School are randomly selected without replacement, and the number of years they taught at the school is recorded

About 6% of the population has a particular genetic mutation. 400 people are randomly selected. Find the standard deviation for the number of people with the genetic mutation in such groups of 400.

3.50 Political Affiliation

Statics Data Analysis

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