Search & Filtering
The number of accidents in a production facility has a Poisson distribution with a mean of 2.8 per month. For a given month, what is the probability that there will be more than three (3) accidents?
A researcher is interested in estimating the average monthly salary of bank managers in NCR. He wants to be 90% confident that his estimate is correct. If the standard deviation is 8,500 pesos, how large a sample is needed te get the desired information and to be accurate within 1,150 pesos?
chemical equation for benzoic acid +copper sulfate+ silicate and precipitate formed
Chalcopyrite (CuFeS2) is a principal mineral of copper. Calculate the number of
kilograms of Cu in 3.71 X 103kg of chalcopyrite.
A university conducted a tracer study to track its graduates for the past five years. One of the variables included in the study questionnaire asks for data on the monthly salaries of the graduates. A sample of 90 graduates yielded a sample mean equal to Php37 000. Construct a 90% confidence interval for the population mean monthly salary if it is known that the population standard deviation is Php9 470. Interpret the result (Write the interpretation in your solution).
A. 37,000 < μ < 39,000
B. 35,350.01 < μ < 38,640.08
C. 35,357.92 < μ < 38,642.08
D. 37,742.92 < μ < 39,875.01
Given a normal distribution with a mean of 200 and the deviation is10. Find the area above 188.
The scientific method is a method of inquiry that helps us understand nature around and within us. When we talk about “science” as only one way to explain nature, and psychology, in particular, as one way to explain human behavior, what do you think this means? Can you think of other ways that we have used to explain behavior?
The Learning Journal entry should be a minimum of 400 words and not more than 750 words. Use APA citations and references if you use ideas from the readings or other sources.
If the sample size n=15, level of significance α=0.05, and a test design of two-tailed test, compute the critical t-value or the rejection region.
PLEASE ANSWER NOW CHOOSE THE CORRECT LETTER
A. 1.7163
B. 1.7530
C. 2.1314
D. 2.1448
If the sample size n=15, level of significance α=0.05, and a test design of two-tailed test, compute the critical t-value or the rejection region.
(SOLUTION)
PLEASE ANSWER MY QUESTION QUICKLY
DEADLINE : 04/13/2022 11:00 PM
A researcher wants to compare the performance of students living with their parents and
the performance of these students whose parents are working. Random samples were
taken from two normally distributed groups of population. 25 students who are living
with their parents posted an average grade of 91.27 with standard deviation of 3,
whereas the 20 randomly selected students whose parents are working abroad have an
average grade of 88.72 with standard deviation of 3.4. Test whether there is a significant
difference between the two groups of students at 0.05 level of significance.
State the null and alternative hypotheses.
Identify if it is one-tailed test or two-tailed test.
Find its critical value and identify the rejection region.
Compute the pooled variance.
Compute the test statistic.
State the decision and conclusion.
