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- Calculateaconfidenceinterval for the me-dian ofthe second population.Select your confidenc eleve land reportit with your answer.??The probability limit of the OLS estimator in the case of omitted variables is given by the following formula: Give an intuitive explanation for two conditions under which the bias will be small.A data with 18 points will be integrated as accurately as possible using a combination of Simpson's rules. It will require ____ applications of Simpson's 3/8th rule and _____ applications of Simpson's 1/3rd rule
- The director of a shipping company believes that there is a relationship between the cost of a customer’s shipment (£) and the weight (lb) of the package being shipped. For investigating this possible relationship, a random sample of nine customer shipments was selected and the weight (in lb) and the cost (rounded to the nearest £) for each shipment were recorded. The results obtained are shown in the table below (on the picture). required: a) ) The scatter diagram showing the relationship between the cost of acustomer’s shipment (£) and the weight (lb) of the package being shipped, is given below. Comment fully and clearly on this diagram. i) ii)For 5.20, can you provide PH Stat path for calculating this?According to the National Center for Health Statistics (2004), 22.4% of adults are smokers. A random sample of 300 adults is obtained. Subquestion: What would the minimum number of adults need to be in order to ensure the sampled values are independent of each other?
- In a café, the manager wishes to estimate p, the proportion of customers who will order sandwich for their lunch. Suppose 30 out of 300 customers will order sandwich for their lunch. Find the probability that more than 40 customers will order sandwich for their lunch by using a suitable approximationSuppose the number of typographical errors on a single page of your book has a Poissondistribution with parameter λ = 1/2. Calculate the probability that there is at least one error onthis pageConsider the following data about number of hours that a sample of 10 person from population spent on studyin after class per day 5 4 4 2 5 0 2 3 5 10 calculate z score for observation 0 and interpret. USE IQR method and comment if the observation 10 is an outlier. Use one decimal place
- Suppose that in the previous semester, the percentages of students in the five sections of ECO 204 were 20%, 21%, 19%, 15% and 25%. However, in the current semester, among a sample of 200 students, the student distribution among five sections is 51, 49, 30, 20 and 50. Can we conclude that there has been a statistically significant change in the student proportions?Find kurtosis by using ungroup data given in the picture using quartile deviation, make sure to arrange data before solving question.A small (but heavy) particle placed in a glass of water will follow a zigzag motion because the particle will bounce off of the water molecules it meets. This is called Brownian motion. A physicist simulates this on a computer, by varying the distance a particle can travel (called the mean free length), on average, before it collides with a water molecule and assigning the change in motion to be one of 8 directions, each with a similar probability. By running the simulated particle (with the same mean free length) many times she determines that it should take 15 seconds, on average, for the particle to fall to the bottom, with a standard deviation of 1.5 seconds. Next she lets a real particle fall through a glass of water and finds that it took 18 seconds. What does she conclude, and why?