Calculus and Above

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The following are the monthly sales (in thousands of
The following are the monthly sales (in thousands of dollars) for a company in four regions of the country. North East South West 34 28 18 24 47 36 30 38 44 40 30 41 29 21 30 24 37 23 Do the data sugg… read more
Kofi
Ph.D.
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Two plots at Rothamsted Experimental Station were studied
Two plots at Rothamsted Experimental Station were studied for production of wheat straw. For a random sample of years, the annual wheat straw production (in pounds) from one plot was as follows. 6.40 … read more
R.R. Jha
Bachelor's Degree
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I do not under this math problem. Complete the following
Complete the following four hypotheses, using α = 0.05 for each. The week 5 spreadsheet can be used in these analyses.1. Mean sales per week exceed 42.5 per salesperson 2. Proportion receiving online training is less than 55% 3 Mean calls made among those with no training is at least 145 4. Mean time per call is 14.7 minutes Using the same data set from part A, perform the hypothesis test for each speculation in order to see if there is evidence to support the manager's belief. Use the Eight Steps of a Test of Hypothesis from Section 9.1 of your text book as a guide. You can use either the p-value or the critical values to draw conclusions. Be sure to explain your conclusion and interpret that to the claim in simple terms Compute 99% confidence intervals for the variables used in each hypothesis test, and interpret these intervals. Write a report about the results, distilling down the results in a way that would be understandable to someone who does not know statistics. Clear explanations and interpretations are critical. … read more
Sandhya
Master's Degree
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Suppose a mutual fund qualifies as having moderate risk if
Suppose a mutual fund qualifies as having moderate risk if the standard deviation of its monthly rate of return is less than 3​%. A​ mutual-fund rating agency randomly selects 27 months and determines… read more
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The table depicts a two-way ANOVA in which gender has two
The table depicts a two-way ANOVA in which gender has two groups (male and female), marital status has three groups (married, single never married, divorced), and the means refer to happiness scores (… read more
Ryan
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An airline wants to select a computer software package for
An airline wants to select a computer software package for its reservation system. Four software packages (1, 2, 3, and 4) are commercially available. The airline will choose the package that bumps as… read more
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Read the situation. Then write the hypotheses in correct mathematical
Read the situation. Then write the hypotheses in correct mathematical notation. Do not conduct any statistical tests. Just write the hypotheses. Insert your answers between the problems. Here are some… read more
Ryan
Bachelor's Degree
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1. (Chapter 7: Estimating a Population Proportion) A poll
Attachment: 2014-06-28_022745_work.docx 1. (Chapter 7: Estimating a Population Proportion) A poll sample of 500 people was conducted if they support new initiative. 200 people said yes. Find the margi… read more
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Hi, can you help with this assignment? I have to turn this
Hi, can you help with this assignment? I have to turn this in on Friday. A cognitive psychologist measures the reaction times of 6 subjects to emotionally laden words. The following scores in seconds … read more
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A medical researcher wants to determine whether there is a
A medical researcher wants to determine whether there is a difference in the mean length of time it takes three types of pain relievers to provide relief from headache pain. Several headache sufferers… read more
Chirag
Master's Degree
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How do you interpret b1 in a regression analysis model?
I need help with this for my regression project. The data is as follows: Player Performance Salary Alex Rodriguez 0.2 28,000,000 CC Sabathia 0.1 23,000,000 Mark Teixeira -0.1 22,500,000 Vernon Wells 0… read more
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CAN YOU HELP ME FINISH THESE QUESTIONS????1. Vegetarians
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1. Suppose that you wish to perform a nonparametric test for
1. Suppose that you wish to perform a nonparametric test for a difference among the medians of three or more independent populations. Which of these tests would be appropriate? (Points : 5) ANOVA Krus… read more
SusanAthena
Master's Degree
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Submit your answers to the following questions using the ANOVA source table below. The table depicts a two-way ANOVA in which gender has two groups (male and female), marital status has three groups (… read more
Trigeoscal
College Math Professor
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1. What is the appropriate critical value for each of the following
1. What is the appropriate critical value for each of the following confidence levels and sample sizes? (Remember that in regard to confidence level this implies two-tails) (a) Critical z-value for an… read more
Trigeoscal
College Math Professor
Master's Degree
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3. The data below are from an independent-measures experiment
3. The data below are from an independent-measures experiment comparing three different treatment conditions. Treatment 1 Treatment 2 Treatment 3 1 1 2 1 2 2 G = 0 1 1 X2 = 1 0 2 T = T = T = Determin… read more
Chirag
Master's Degree
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1. Suppose that the F ratio you have calculated for a one-way
1. Suppose that the F ratio you have calculated for a one-way ANOVA is 23. Which of the following can you conclude? a. A calculation error has probably been made (F values this high don't happen in re… read more
Sandhya
Master's Degree
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) What are the critical z-values for a two-tailed hypothesis
) What are the critical z-values for a two-tailed hypothesis test if the significant level = 0.01? A. ± 1.96 B. ± 2.33 C. ± 2.58 D. ± 1.65 2) In classical hypothesis testing, the test statistic is to … read more
Chirag
Master's Degree
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