An urn contains five red, three orange, and two blue balls. Two balls are randomly selected. What is the sample space of this experiment? Let X represent the number of orange balls selected. What are the possible values of X? Calculate P{X = 0}.
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A: p = p(success ) = P( 40 <= x ) = 0.05 ----->( from table )
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Q: Three-circle, red-on-white is one distinctive pattern painted on ceramic vessels of the Anasazi…
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Q: Three-circle, red-on-white is one distinctive pattern painted on ceramic vessels of the Anasazi…
A: Answer: n = 261
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- Three-circle, red-on-white is one distinctive pattern painted on ceramic vessels of the Anasazi period found at the Wind Mountain archaeological site. At one excavation, a sample of 174 potsherds indicated that 72 were of the three-circle, red-on-white pattern. How many ceramic potsherds must be found and identified if we are to be 95% confident that the sample proportion p̂ of such potsherds is within 5.2% of the population proportion of three-circle, red-on-white patterns found at this excavation site? (Round your answer up to the nearest whole number.)Magnetic surveying is one technique used by archaeologists to determine anomalies arising from variations in magnetic susceptibility. Unusual changes in magnetic susceptibility might (or might not) indicate an important archaeological discovery. Let x be a random variable that represents a magnetic susceptibility (MS) reading for a randomly chosen site at an archaeological research location. A random sample of 120 sites gave the readings shown in the table below. Magnetic Susceptibility Readings,centimeter-gram-second ✕ 10−6 (cmg ✕ 10−6) Comment MagneticSusceptibility Number ofReadings EstimatedProbability "cool" 0 ≤ x < 10 30 30/120 = 0.25 "neutral" 10 ≤ x < 20 54 54/120 = 0.45 "warm" 20 ≤ x < 30 24 24/120 = 0.20 "very interesting" 30 ≤ x < 40 6 6/120 = 0.05 "hot spot" 40 ≤ x 6 6/120 = 0.05 Suppose you are working in a "warm" region in which all MS readings are 20 or higher. In this same region, what is the probability that you will find a…John in conducting an independent samples t-test. In his data, Group 1 has 32 participants and Group 2 has 30 participants. What are the degrees of freedom for his test? Enter your answer as a whole number with no decimal places (i.e., 10, not 10.01, not 10.1)
- Number of Jobs The U.S. Bureau of Labor and Statistics reported that a person between the ages of 18 and 34 has had an average of 9.2 jobs. To see if this average is correct, a researcher selected a random sample of 12 workers between the ages of 18 and 34 and asked how many different places they had worked. The results were as follows: 5 10 12 8 2 3 4 1 6 7 7 6 Send data to Excel At a=0.01, can it be concluded that the mean 9.2? Use the P-value method. Assume the population is normally distributed. 00.Magnetic surveying is one technique used by archaeologists to determine anomalies arising from variations in magnetic susceptibility. Unusual changes in magnetic susceptibility might (or might not) indicate an important archaeological discovery. Let x be a random variable that represents a magnetic susceptibility (MS) reading for a randomly chosen site at an archaeological research location. A random sample of 120 sites gave the readings shown in the table below. Magnetic Susceptibility Readings,centimeter-gram-second ✕ 10−6 (cmg ✕ 10−6) Comment MagneticSusceptibility Number ofReadings EstimatedProbability "cool" 0 ≤ x < 10 36 36/120 = 0.30 "neutral" 10 ≤ x < 20 48 48/120 = 0.40 "warm" 20 ≤ x < 30 18 18/120 = 0.15 "very interesting" 30 ≤ x < 40 12 12/120 = 0.10 "hot spot" 40 ≤ x 6 6/120 = 0.05 Suppose you are working in a 'warm' region in which all MS readings are 20 or higher. In this same region, what is the probability that you will find…Three-circle, red-on-white is one distinctive pattern painted on ceramic vessels of the Anasazi period found at the Wind Mountain archaeological site. At one excavation, a sample of 164 potsherds indicated that 70 were of the three-circle, red-on-white pattern. How many ceramic potsherds must be found and identified if we are to be 95% confident that the sample proportion p̂ of such potsherds is within 5.8% of the population proportion of three-circle, red-on-white patterns found at this excavation site? (Round your answer up to the nearest whole number.)
- Magnetic surveying is one technique used by archaeologists to determine anomalies arising from variations in magnetic susceptibility. Unusual changes in magnetic susceptibility might (or might not) indicate an important archaeological discovery. Let x be a random variable that represents a magnetic susceptibility (MS) reading for a randomly chosen site at an archaeological research location. A random sample of 120 sites gave the readings shown in the table below. Magnetic Susceptibility Readings, centimeter-gram-second x 10-6 (cmg × 10-6) Magnetic Susceptibility Estimated Probability Number of Comment Readings "cool" Osx< 10 24 24/120 = 0.20 10 sx < 20 20 sx < 30 30 sx < 40 "neutral" 60 60/120 = 0.50 "warm" 24 24/120 = 0.20 "very interesting" "hot spot" 6 6/120 = 0.05 40 sx 6 6/120 = 0.05 Suppose a reading between 30 and 40 is called "very interesting" from an archaeological point of view. Let us say you take readings at n = 12 sites chosen at random. Let r be a binomial random…Magnetic surveying is one technique used by archaeologists to determine anomalies arising from variations in magnetic susceptibility. Unusual changes in magnetic susceptibility might (or might not) indicate an important archaeological discovery. Let x be a random variable that represents a magnetic susceptibility (MS) reading for a randomly chosen site at an archaeological research location. A random sample of 120 sites gave the readings shown in the table below. Magnetic Susceptibility Readings,centimeter-gram-second ✕ 10−6 (cmg ✕ 10−6) Comment MagneticSusceptibility Number ofReadings EstimatedProbability "cool" 0 ≤ x < 10 24 24/120 = 0.20 "neutral" 10 ≤ x < 20 60 60/120 = 0.50 "warm" 20 ≤ x < 30 24 24/120 = 0.20 "very interesting" 30 ≤ x < 40 6 6/120 = 0.05 "hot spot" 40 ≤ x 6 6/120 = 0.05 Suppose a 'hot spot' is a site with a reading of 40 or higher. A. In a binomial setting, let us call success a 'hot spot'. Use the table to find p=…Many college and university students obtain summer jobs. A professor wanted to determine whether students in different degree programs earn different amounts. She randomly selected five students in each of the 3 university programs and asked them to report what they earned the previous summer (in thousands of dollars). The following partially filled-in ANOVA table was obtained. Fill-in the rest of the table. (Use exact values for df and round all other numbers to 2 decimal places, if needed.) Source df MS F-Stat Treatments 12.4 Error Total 23.5
- Magnetic surveying is one technique used by archaeologists to determine anomalies arising from variations in magnetic susceptibility. Unusual changes in magnetic susceptibility might (or might not) indicate an important archaeological discovery. Let x be a random variable that represents a magnetic susceptibility (MS) reading for a randomly chosen site at an archaeological research location. A random sample of 120 sites gave the readings shown in the table below. Magnetic Susceptibility Readings, centimeter-gram-second x 10-6 Magnetic Susceptibility 0 5 and ng > 5 are not satisfied. Yes, it is appropriate since n 2 30. Yes, it is appropriate since the criteria np > 5 and ng > 5 are both satisfied. No, it is not appropriate since at least one of the criteria n 2 100 or np 100 or np < 10 are are both satisfied. (b) Use the normal distribution to approximate the probability that there will be at least 17 "neutral" readings out of these 45 trials. (Round your answer to four decimal…The accompanying table describes results from groups of 10 births from 10 different sets of parents. The random variable x represents the number of girls among 10 children. Use the range rule of thumb to determine whether 1 girl in 10 births is a significantly low number of girls. Click the icon to view the table. Use the range rule of thumb to identify a range of values that are not significant. The maximum value in this range is girls. (Round to one decimal place as needed.) - X Probability Distribution for x Number of Girls x 0 1 2 3 4 5 6 7 8 9 10 Print Get P(x) 0.002 0.013 0.044 0.115 0.208 0.234 0.201 0.115 0.043 0.019 0.006 Done k answerThree-circle, red-on-white is one distinctive pattern painted on ceramic vessels of the Anasazi period found at the Wind Mountain archaeological site. At one excavation, a sample of 160potsherds indicated that 70 were of the three-circle, red-on-white pattern. How many ceramic potsherds must be found and identified if we are to be 95% confident that the sample proportion p̂ of such potsherds is within 5.0% of the population proportion of three-circle, red-on-white patterns found at this excavation site? (Round your answer up to the nearest whole number.)
