8,918 Answered Questions for the topic statistics

Statistics

11/28/23

R Code functions needed in Stats
Could someone please help me with this question. How do you code effect sizes in R?? What would the code look like or the functions. I am working on a mixed regression. Here is the hypothesis... more
Follows • 1
Expert Answers •1
Statistics

11/28/23

Run a regression analysis on the following bivariate set of data with y as the response variable.
x y17.9 98.242.3 -14.419.4 9418.8 7059.2 7.927.3 34.48.6 135.42.3 137.824.7 80.133.9 54.8-1.2 77.336.7 ... more
Follows • 1
Expert Answers •1
Statistics

11/28/23

Annual high temperatures in a certain location have been tracked for several years.
Let X represent the year and Y the high temperature. Based on the data shown below, calculate the correlation coefficient (to three decimal places) between X and Y. Use your calculator!x ... more
Follows • 2
Expert Answers •1
Statistics

11/28/23

Linear Regression Application, Interpolation and Extrapolation
Use the data and story to answer the following questionsThe information below shows the number of state-registered automatic weapons and the murder rate for several Northwestern states.x = 11.3,... more
Follows • 1
Expert Answers •1
Statistics

11/28/23

Situation: The Ipod Touch has been out for two years now and a lot of data has been collected.
Relevant Relationship:There is a functional relationship between Price of an IPod Touch, "p" and Weekly Demand, "s".Below is a table of data that have been collectedPrice,"p",($) Weekly... more
Follows • 1
Expert Answers •1
Statistics

11/28/23

Business statistics

Test the claim that the mean GPA of night students is larger than 2.2 at the 0.10 significance level.The null and alternative hypothesis would... more
Follows • 1
Expert Answers •1
Statistics Math

11/27/23

In a certain school district, it was observed that 25% of the students

 in the element schools were classified as only children (no siblings). However, in the special program for talented and gifted children, 88 out of 287 students are only children. The school... more
Follows • 1
Expert Answers •1
Statistics

11/27/23

Based on the data shown below, calculate the correlation coefficient (rounded to three decimal places)
x y3 15.934 15.945 17.456 19.567 19.678 20.98
Follows • 1
Expert Answers •1
Statistics

11/27/23

business statistics

A CBS News poll conducted June 10 and 11, 2006, among a nationwide random sample of 651 adults, asked those adults about their party affiliation (Democrat, Republican or none) and their opinion of... more
Follows • 1
Expert Answers •1
Statistics

11/27/23

business statistics

Test the claim that the mean GPA of night students is significantly different than the mean GPA of day students at the 0.2 significance level.The null and alternative hypothesis would... more
Follows • 1
Expert Answers •1
Statistics

11/27/23

business statistics

Test the claim that the proportion of men who own cats is smaller than the proportion of women who own cats at the .005 significance level. The null and alternative hypothesis would... more
Follows • 1
Expert Answers •1
Statistics

11/25/23

SimQuick Simulation
I have assignment that requires the use of " SimQuick" to solveCan someone helps me with that
Follows • 0
Expert Answers •1
Statistics

11/24/23

I need help with tri-inequality.
Assume that a sample is used to estimate a population proportion p. Find the 90% confidence interval for a sample of size 388 with 78% successes. Enter your answer as a tri-linear inequality using... more
Follows • 1
Expert Answers •1
Statistics

11/24/23

Statistics Homework
In a survey, 10 people were asked how much they spent on their child's last birthday gift. The results were roughly bell-shaped with a mean of $49 and standard deviation of $20. Construct a... more
Follows • 1
Expert Answers •1
Statistics

11/24/23

Statistics Homework

You wish to test the following claim (Ha) at a significance level of α=0.005.      Ho:μ=58.6       Ha:μ≠58.6You believe the population is normally distributed, but you do not know the standard... more
Follows • 1
Expert Answers •1
Statistics

11/23/23

Statistics Homework
In a survey, 25 people were asked how much they spent on their child's last birthday gift. The results were roughly bell-shaped with a mean of $41 and standard deviation of $4. Find the margin of... more
Follows • 1
Expert Answers •1
Statistics

11/23/23

Statistics Homework

For a confidence level of 98% with a sample size of 20, find the critical t value [t_(alpha/2)]. (Report answer in 3 decimal places)
Follows • 1
Expert Answers •1
Statistics

11/23/23

Find probability that a single randomly selected value is greater than 146.1. P(X > 146.1) and Find probability that a sample of size is randomly selected with a mean greater than 146.1. P(M > 146.1)
Mean=141.2 and St. Deviation=27.6. Sample size n=116.
Follows • 1
Expert Answers •1
Statistics

11/23/23

Statistics Homework
In a survey, 25 people were asked how much they spent on their child's last birthday gift. The results were roughly bell-shaped with a mean of $44 and standard deviation of $17. Construct a... more
Follows • 1
Expert Answers •1
Statistics

11/22/23

Test Statistic using Z-score
From previous studies, it is concluded that 73% of people mind if others smoke near a building entrance. A researcher claims it has decreased and decides to survey 100 adults. Test the researcher's... more
Follows • 1
Expert Answers •1
Statistics

11/22/23

Let z be a random variable with a standard normal distribution. Find the indicated probability. (Round your answer to four decimal places.) T. P(0 ≤ z ≤ 1.61) =
Follows • 1
Expert Answers •2
Statistics

11/21/23

Statistics: Stem and Leaf Plot

How to construct a stem and leaf plot with a set of numbers that consists of whole numbers and decimals (without rounding the decimals) Like: 951, 715,299, 326, 476, 223, 113.5, 198, 63.4, 84.2,... more
Follows • 1
Expert Answers •1
Statistics

11/21/23

uniform distribution
From the figure what is P(X>1.26) or P(X<0.14)
Follows • 1
Expert Answers •1
Statistics Probability

11/20/23

PROBABILITY and STATISTICS
A population of values has a normal distribution with �=226.5 and �=62.7. You intend to draw a random sample of size �=80.Answer the following, rounding your answers to three decimals where... more
Follows • 1
Expert Answers •1
Statistics Calculus

11/19/23

Maximum likelihood estimator
Let x1, . . . , xn be a random sample of a Poisson distributed population X ∼ Po(λ) with λ > 0. Find the maximum likelihood estimator for λ.
Follows • 1
Expert Answers •1

Still looking for help? Get the right answer, fast.

Ask a question for free

Get a free answer to a quick problem.
Most questions answered within 4 hours.

OR

Find an Online Tutor Now

Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.