7. Which of the following biases can be associated with the availability heuristic? A. When ease of recall is not associated with probability. B. Ease of imagination is not related to probability. C. Ignoring base-rate frequencies. D. Illusory correlation.
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7. Which of the following biases can be associated with the availability heuristic?
A. When ease of recall is not associated with
B. Ease of imagination is not related to probability.
C. Ignoring base-rate frequencies.
D. Illusory
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Solved in 2 steps
- A random sample of packages delivered by a company were tracked if they were delayed or on time and whether they were sent in-state or out-of-state. The relative frequency table displays the data gathered. Delayed 4% On Time 39% Total 43% 53% In-State Out-Of-State Total 40% 37% 35% 021% 36% Based on the given information, what is the likelihood of a package being sent out-of-state, given that it was on time? 21% 57% 60% 100%The following table is a frequency distribution for road rage incidents during one week: Sunday: 5, Monday: 5, Tuesday: 11, Wednesday: 12, Thursday: 11, Friday: 18, Saturday: 7 At the 5% significance level, do the data provide sufficient evidence that road-rage incidents are more likely to occur on some days than on others?A soda company claims that the mean amount of soda in their bottles is 12 ounces. Determine whether the hypothesis for this claim is left-tailed, right-tailed, or two- tailed. two-tailed right-tailed left-tailed
- Most Australian youth-sports leagues separate athletes by birthdate, and the cutoff date is January 1st. Thus, those children born in January and February have some physical advantages in youth sports over those born in November and December. A recent studysuggests that those physical advantages enjoyed early in life impact the likelihood of a child becoming a professional athlete. The table gives the number of Australian-born 2009 Australian Football League players born in different months of the year, as well as the proportion of births expected if the birthdates of the athletes matched the distribution of all births nationally. Is there evidence that the distribution of birthdates of AFL athletes is not the same as the distribution of birthdates nationally? Birthdates nationally in Australia and for Australian football players Proportion Actual for Months Nationally AFL players Jan-Mar 0.248 196 Apr-June 0.251 162 Jul-Sep 0.254 137…3. A survey was conducted two years ago asking college students their top motivations for using a credit card. To determine whether this distribution has changed, you randomly select 425 college students and ask each one what the top motivation is for using a credit card. Can you conclude that there has been a change in the claimed or expected distribution? Use a = 0.10. Complete parts (a) through (d). Response Old Survey % 27% New Survey Frequency, f Rewards Low rates Cash back Discounts Other 110 24% 98 21% 107 7% 46 21% 64 a. State H, and H, and identify the claim. What is the null hypothesis, Ho? O A. The distribution of motivations differs from the expected distribution. O B. The distribution of motivations is 27% rewards, 24% low rate, 21% cash back, 7% discounts, and 21% other. O C. The distribution of motivations is 110 rewards, 98 low rate, 107 cash back, 46discounts, and 64 other. What is the alternate hypothesis, H,? O A. The distribution of motivations differs from the…A department store manager has monitored the number of complaints received per week about poor service. The probabilities for numbers of complaints in a week, established by this review, are shown in the table. Number of complaints Probability 0 0.16 1 0.26 2 0.35 week? 3 0.10 4 0.08 5 0.05 What is the standard deviation of complaints received per Please round your answer to the nearest hundredth. Note that the correct answer will be evaluated based on the full-precision result you would obtain using Excel.
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