There are four questions about this problem in the test shown in random order.There are 100 customers according to gender either male or female and according to buyingbehavior either yes or no. Relevant quantities are shown in the following table.(gender=nale, buy=yes, 20)(gender=nale, buy=Dno, 10)(gender=fenale, buy=Dyes, 20)(gender=fenale, buy=no, 50)What is the posterior probability of a buyer being a male?а. 0.5O b. 0.4О с. 0.3O d. 0.6

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A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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Suppose that you wanted to buy a new Honda Civic and you want to wait until you can get a good deal. You want to see if the usual/average price of a Honda Civic is below the blue book value of $21,550. You are unsure that the prices of the current listings around you are lower than the blue book value of a Honda Civic so you randomly sample 49 listings from the area and find their sample mean selling price is $20,015 and their sample standard deviation is $1750.
Ages of students in a business math class are: 25, 19, 22, 32, 28, 19, 19, 20, 41, 20, 19, 73, 19, 34, 21, and 37. a) What is the mean?, b) What is the median?, c) What is the Mode?
Page 160 #17 We predict that children exhibit more aggressive act after watching a violent television show. The scores for ten children were recorded before they watched a violent show and then after they watched a violent show. Aggression was measured in terms of number of aggressive acts (e.g. hitting, yelling, kicking etc). Sample 1 (after TV show): 5,6,4,4,7,3,2,1,4,1 Sample 2 (before TV show): 4,6,3,2,4,1,0,0,5,2 Is this a one-tailed or two-tailed test?
Multiple Comparisons Dependent Variable: RAPEMYTH Tukey HSD Mean Difference (- J) 95% Confidence Interval () MOST WOMEN FIND ME UNATTRACTIVE (J) MOST WOMEN FIND ME UNATTRACTIVE Agree somewhat Std. Error Sig. Lower Bound Upper Bound Agree strongly 2.69258 .56229 .000 1.2458 4.1393 Disagree somewhat 3.10941" .53686 .000 1.7281 4.4907 Disagree strongly 3.85225 .52543 .000 2.5003 5.2042 Agree somewhat Agree strongly -2.69258 .56229 .000 -4.1393 -1.2458 Disagree somewhat .41684 .32901 .584 -.4297 1.2634 Disagree strongly 1.15967" .31001 .001 .3620 1.9573 Disagree somewhat Agree strongly -3.10941 .53686 .000 -4.4907 -1.7281 Agree somewhat -.41684 .32901 .584 -1.2634 .4297 Disagree strongly .74283 .26107 .023 .0711 1.4146 Disagree strongly -3.85225 -1.15967 -74283 Agree strongly .52543 .000 -5.2042 -2.5003 Agree somewhat 31001 .001 -1.9573 -.3620 Disagree somewhat *. The mean difference is significant at the 0.05 level. .26107 .023 -1.4146 -.0711 RAPEMYTH Tukey HSD*. Subset for alpha = 0.05…
Medical researchers followed 6272 Swedish men for 30 years to see if there was any association between the amount of fish in their diet and prostate cancer. (“Fatty Fish Consumption and Risk of Prostate Cancer,” Lancet, June 2001). A summary of the data is given in the table below. Fish Consumption No Prostate Cancers Prostate Cancers Never/Seldom 110 14 Small part of diet 2420 201 Moderate part of diet 2769 209 Large part of diet 507 42 A) If a patient is randomly selected, what is the probability that he/she had prostate cancer given that fish was never or seldom a part of the diet? Round your answer to three decimal places and include the leading zero. B) If a patient is randomly selected, what is the probability that s/he ate fish as a large part of their diet given that they had prostate cancer. Round your answer to two decimal places and include the leading zero.
What is the variance of a set of 10 numbers: 2, 4, 4, 4, 5, 5, 7, 9, 9, 9?
Do all the cards look correct? And the one that says " the spread of the data (range) is 20" which group does that one belong to?
If the mean of 16, 11, 17, 10, a, 10, 13, 17, 9, and 16| is 13.1, then what's their median? Select one: Оа. 12.5 O b. None Ос. 12 O d. 11.5 Ое. 13
A magazine invited women to visit their site to complete a surgery and 1500 respondents responses were recorded. When asked whether they would rather have more money or more sleep, 88% responded more money and 12% responded more sleep. How do I answer the questions with this information? 1) identify the variable in this study. 2) is the variable quantitative or qualitative? 3) what is the sample in this study? 4) what is the implied population?
I am suppose to make a histogram for beer calories of 30 beers and tell how it is skewed can you explaine how to do this? The numbers of calories in the beers are: 215,147,100,157,93,159,197,177,134,151,112,114,168,97,133,137,110,69,176,142,109,186,141,112,131,138,121,144,148,145 can you explain to me how this is done to make a histogram and how it's skewed.
Imagine a researcher asks a sample of five people to drive two types of cars and rate each of them on a scale of 1 to 25. The researcher wants to know: Is there is a difference in the ratings of the two types of cars. Below are the data collected: Type A: 20, 10, 11, 23, 7 Type B: 10, 11, 4, 12, 1 What type of analysis would be appropriate to address the researcher’s question and why did you make this choice? Conduct the analysis identified in “1” above using jamovi. Use α = .05. Is the assumption(s) met? What do you conclude? Present your answer in APA. ** NB I asked these already using the responses please help answer question 2 2 Based on your decision in the questions above identify and explain the type of error you could be making
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