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Vesnalui [34]
3 years ago
9

Russia has recently started a push for stronger smoking regulations much like those in western countries concerning cigarette ad

vertising, smoking in public places, etc. The datafile named Russia contains sample data on smoking habits of Russians that are consistent with those reported by The Wall Street Journal (The Wall Street Journal, October 16, 2012). Analyze the data using Excel and answer the following questions. Click on the datafile logo to reference the data. a. Develop a point estimate and a confidence interval for the proportion of Russians who smoke. Round point estimate to two decimals and confidence interval to four decimal places. Point estimate Confidence interval to b. Develop a point estimate and a confidence interval for the mean annual per capita consumption (number of cigarettes) of a Russian. If required, round your answers to nearest whole value. Point estimate Confidence interval to c. For those Russians who do smoke, estimate the number of cigarettes smoked per day. If required, round your answer to nearest whole value.

Mathematics
1 answer:
Blababa [14]3 years ago
7 0

Answer:

a) 0.46

b) (2341.39, 3230.61)

c) For those Russians who do smoke, estimate the number of cigarettes smoked per day.= 23

Step-by-step explanation:

check below for more detailed solution

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Need helping asap thx
nikitadnepr [17]

Answer:

Its C

Step-by-step explanation:

Just took the test

6 0
1 year ago
5 points
Usimov [2.4K]
It would be 30
because if you add up the total you would get $60 and then you divide it by 2 which equals to 30
5 0
2 years ago
Read 2 more answers
According to a survey conducted by Netpop Research, 65% of new car buyers use online search engines as part of their car-buying
11111nata11111 [884]

Answer:

(a) 0.76

(b) 0.46

(c) 0.58

Step-by-step explanation:

Let's first list the probabilities of each event:

Buyers using online search engine: 0.65

Buyers skipping test drive = 0.11

Buyers that use search engines AND skip test drives = 0.65 * 0.11 = 0.07

(a) To find this probability, we simply need to add the probabilities of the above conditions that meet the criteria of the question. Since all of the above conditions meet the criteria set by the question, we have:

Probability = 0.65 + 0.11

Probability = 0.76

(b) The probability of buyers that do not use search engines = 1 - 0.65 = 0.35

Probability of buyers that do not use search engines OR do skip the test drive = 0.35 + 0.11 = 0.46

(c) Probability of buyers buyers that do not skip test drive = 1 - 0.11 = 0.89

Probability of buyers using online search engine AND not skipping the test drive = 0.65 * 0.89 = 0.58

(It must be noted that question c is phrased wrong. Since both events are independent, i.e buying a car OR skipping the test drive would mean 0.65 + 0.89 = 1.54 (not possible) )  

5 0
3 years ago
Solve y=3/2 plzzzzzzzzzzzzzzzzzzzzzzzzzz help
FromTheMoon [43]
Go to 1.5 on the y axis. Then make a horizontal line that stays on that elevation from 1.5
8 0
3 years ago
1. Which of the following values of n will make the below equation true? n × (−2+5 ) = −8+20
Salsk061 [2.6K]

Answer:

1a 2a

Step-by-step explanation:

n × (−2+5 ) = −8+20

n × 3 = 12

n = 4

2 + (n+6) = −1+6

n + 8 = 5

n = -3

7 0
2 years ago
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