Suppose the following table was generated from the sample data of 20 employees relating annual salary to years of education and gender. Accordingto the results, is there a salary difference between men and women at the 0.01 level of significance? If yes, write the difference in salary in the spaceprovided, rounded to two decimal places. Else, select "There is not enough evidence."Answer 2 PointsInterceptEducationCoefficients-8347.502502Standard Error2674.5706723634.621150Male (1 if male, 0 if female) 3534.818204t StatP-Value-3.121063 0.006217146.916737 24.739327 0.000000796.473016 4.438089 0.000361KeypadKeyboard ShortcutsSelecting a radio button will replace the entered answer value(s) with the radio button value. If the radio button is not selected, the entered answer isused.

The objective of this question is to determine if there is a significant difference in salary…

Answered: Suppose the following table was…

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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12. A score that is 6 points below the mean corresponds to a z-score of z -2.00. What is the population %3D standard deviation? sponds
3. The table below illustrates the number of visitors to Museum Fantastic over the last 100 days': No. of Visitors No. of Days 21 - 40 22 41 - 60 4y+2 61 - 80 26 2y-4 81 - 100 (a) Find the value of mean, mode and standard deviation for this dataset. (b) By comparing the values of mean and mode, what can you say about the skewness of this data? Justify your answer with the Pearson's measure of skewness. (c) The mean and standard deviation for the number of visitors at Museum Awesome over the same period of time are 53 and 21.5 respectively. Determine which museum has relatively dispersed number of more Justify your answer. visitors.
Suppose we want to know the mean number of shurikens thrown each night by ninjas in Konoha village. Getting this information from every ninja in the village would take forever. Instead, we randomly select 20 ninjas from the ninja school that is closest to us. a. Describe the statistic of interest in this survey b. The method used to obtain the sample of ninjas above is an example of which of the following (i) convenience sampling (ii) voluntary response sampling (iii) stratified random sample (iv) multi-stage sampling
For question 16-18, consider the following distribution of test scores in a * science class. 16. What is the mean score of learners in the science test? Cumulative Frequency Frequency 2 75 11 73 21 62 20 41 10 21 8 11 3 Score Interval 35-39 30-34 25-29 20-24 15-19 10-14 5-9 N A. 21 OB. 22 OC. 23 OD. 27 35 75
D A small amount of the trace element selenium, 50-200 micrograms (ug) per day, is considered essential to good health. Suppose that random samples of 50 adults were selected from two regions of the United States and that each person's daily selenium intake was recorded. The means and standard deviations of the selenium daily intakes for the two groups are shown in the table. Sample Mean (ug) Sample Standard Deviation (ug) Find a 95% confidence interval for the difference (₁-₂) in the mean selenium intakes for the two regions. (Round your answers to three decimal places.) 49 Region Phase One-Tw_docx 1 167.4 22.8 ug to Interpret this interval, O The probability that the difference in the average daily selenium intake for the populations in Region 1 and Region 2 is exactly in the middle of the Interval is 95%. A 2 140.5 17.3 O The probability that the difference in the average daily selenium intake for the populations in Region 1 and Region 2 is within the interval is 95%. We are 95%…
Consider the information above and in question 1. It is conjectured that the mean number of people attending all 2017 Veterans Day celebrations is 145, and of interest is to test this conjecture versus the alternative that the mean number of people attending all 2017 Veterans Day celebrations is different from 145 people To test the hypothesis, a simple random sample of 41 Veterans Day celebrations was selected and the number of people attending each was recorded. The mean number of people attending for this sample of 41 celebrations was 157, with a standard deviation of 23 people. The distribution of the data was bimodal. If appropriate, use this information to test the hypotheses stated in question 3 at the a = .05 level of significance. O 7 What is the p-value? 0.05 p-value < 0.10 0.0005 0.03 0.001 < p-value < 0.002 0.0008 4-
Suppose I want to sample the household incomes for EBR parish. Let's say I start with a simple random sample of 100 residents and calculate the sample mean. How would the sampling distribution of change if I increase the sample size to 1,000 residents?
9. The GRE is a test that is widely used by many Universities throughout the country to determine graduate (Masters, Doctorate, Professional, etc) admissions. It consists of three parts: Verbal Reasoning, Quantitative Reasoning, and Analytical Writing (Source: www.ets.org). The 2014-15 scores for the Analytical Writing portion of the GRE is approximately normal with a mean score u=3.5 and standard deviation o=0.9. Use the 68-95-99.7 rule to draw the distribution of the data. a) 68% of the Analytical Writing scores fall between and b) 95% of the Analytical Writing scores fall between and c) 99.7% of the Analytical Writing scores fall between and d) What percent of GRE Analytical Writing scores lie above 2.6? e) What percent of GRE Analytical Writing scores lie below 5.3? f) What percent of GRE Analytical Writing scores lie below 1.7? g) What percent of GRE Analytical Writing scores lie between 1.7 and 6.2? h) How much score do you need to be in the top 16%? i) How much score will push…
Assuming that the height of a college women are nobody distributed with mean 65 in and standard deviation 3 in what percent of women are taller than 62 in?
solve question 3 please
8. This question requires you to work z score problems with the sampling distribution of means. For each problem, begin by computing the standard error of the mean, using the formula: OM Then make two diagrams of the problem-one in terms of the actual scores, and one in terms of the z scores; mark the area under investigation on each curve. Show calculation of the appropriate z scores. List the line(s) from the z score table that you use to answer the question. Provide a verbal answer to each question. a. Assume you have a sampling distribution of means of samples of size n=16 from a population distribution in which u = 46 and o = 36. What proportion of sample means fall above M = 48? b. Assume you have a sampling distribution of means of samples of size n=25 from a population distribution in which u = 100 and o = 15. What proportion of sample means fall above M = 96? c. Assume you have a sampling distribution of means of samples of size n=49 from a population distribution in which u =…
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