PROBLEM 2: The marketing students conducted a survey to compare the two-week sales/ days per week) of the two vendors of seafood products in Market ABC. The results ofsurvey are shown in the table below.Vendor AVendor Bni = 13X1 85,000S1 23.000Is there a significant difference between the mean sales of the two vendors? Test the claimat 0.05 level of significance.n2 = 13X2 = 77,000S2 27,000Formulate the hypothesis12. Ho:13. НА:14. Given:16. Solve for t:X3 =S2 =12 =a =17.t=15. Test statistics:18. d. f. =19. Solve the critical value (te)-3320. Те.22. Interpretation:21.

Here AS PER POLICY I SHOULD HAVE TO CALCULATE 3 SUBPART EVEN THOUGH I HAVE CALCULATED 4 KINDLY…

Answered: Is there a significant difference…

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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USA TODAY (October 14, 2016) reported that Americans spend 4.1 hours per weekday checking work email. This was an estimate based on a survey of 1,004 white-collar workers in the United States. (a) Suppose that you would like to know if there is evidence that the mean time spent checking work email for white-collar workers in the United States is more than half of the 8-hourwork day. What would you need to assume about the sample in order to use the given sample data to answer this question? (Select all that apply.) We would need to assume that all white-collar workers were surveyed or the sample is representative of the population of white-collar workers in the United States.We would need to assume that all observations are dependent or all observations are independent.We would need to assume that the distribution of the population of times is normal or that the sample size is small.We would need to assume that the sample was randomly selected or is representative of the population…
Please see below for the question details. I got 34.32 for the interest, but I also got 19.68 and 32 when I reworked the problem; Please help!!!! Because of the relatively high interest rates, most consumers attempt to pay off their credit card bills promptly. However, this is not always possible. An analysis of the amount of interest paid monthly by a bank's Visa cardholders reveals that the amount is normally distributed with a mean of 27 dollars and a standard deviation of 8 dollars.Please use z-scores with at least 3 decimal places. D. What interest payment is exceeded by only 18% of the bank's Visa cardholders? Interest Payment =
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If a set of observations is normally distributed, what percent of these differ from the mean by (a) more than 2.50? (b) less than 0.640?
In most cases of study, the statistical analysis is not giving the precise value of measurement but only giving the best estimation value of the precise value. Why is it so?
Qualitative researchers should view the opinions of other researchers about the themes derived from data analysis as biased. This is because other researchers would not be as familiar with the results as the researcher. True False A researcher has conducted a crosstabs analysis to understand the distribution of income across 3 different gender groups (male, female and non-binary). They notes that the Chi-square test produced an asymptotic significance level of 0.027. What does this suggest? (pick the most appropriate interpretation) Income does not vary across different genders Income does not differ across the different grouops There are significant differences in the distribution of income for the male, female and non-binary groups The male group has sufficiently more income compared to the female and non-binary groups
answer and discuss properly
It is calculated that, in order to estimate the true mean amount of money spent on textbooks this semester by U of M students to within $40 with 99% confidence, we need a sample of 100 students. What sample size would be required to estimate the true mean amount of money spent on textbooks to within $10 with 99% confidence?
Students in an experimental psychology class did research on depression as a sign of stress. A test was administered to a sample of 30 students.The scores are shown below. 43 50 10 92 77 35 64 36 42 72 53 62 35 75 50 D 72 36 28 38 61 48 63 35 41 21 36 50 47 86 14 To find the 10% trimmed mean of a data set, order the data, delete the lowest 10% of the entries and the highest 10% of the entries, and find the mean of the remaining entries. Complete parts (a) through (c). (a) Find the 10% trimmed mean for the data The 10% trimmed mean is- (Round to the nearest tenth as needed.) (b) Compare the four measures of central tendency, including the midrange. Mean = (Round to the nearest tenth as needed.) Median = Mode = (Use a comma to separate answers as needed.) The midrange is found by the following formula. (Maximum data entry) + (Minimum data entry) 2 Midrange = (Round to the nearest tenth as needed.) (c) What is the benefit of using a trimmed mean versus using a mean found using all data…
Suppose the following data show the prices of 4 cars with similar characteristics that sold at a recent auction (in thousands of dollars): 5.7, 11.3, 10.4, 12.9. Calculate the mean selling price of the sample. (please express your answer using 2 decimal places)
(b) Suppose that the measurement 37 (the largest measurement in the data set) were replaced by 69. Which measures of central tendency would be affected by the change? Choose all that apply. Mean Median Mode O None of these measures

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Is there a significant difference between the mean sales of the two vendors? Test the claim at 0.05 level of significance.