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Get free college homework help 🔊Hello friends, Welcome to Free College HomeWork Help.... If you like our college fashions videos, Please 👍Like, 🔄Share and 👉Subscribe. Please press the 🔔bell icon, so that you can get our upcoming video updates.. Thank you #homeworkhelp #assignmenthelp #freehomeworkhelp #freecollegehomeworkhelp statistics help, statistics homework help, stat help, stat assignment help, college homework help Visit https://tutorteddy.com/site/free_stat... for free statistics help & college homework help. We provide quick and instant statistics help 24/7 for college and PhD students, researchers. ========================== Questions & Solutions Q: A psychological introvert-extrovert test produced scores that had a normal distribution with a mean and standard deviation of 80 and 15, respectively. If a person is selected at random from 500 persons. a. What is the probability that the person chosen had a score between 74 and 101? Ans: https://tutorteddy.com/site/free_stat... ---------------- Q: Digital Camera Prices The prices (in dollars) for a particular model of digital camera with 6 megapixels and an3x optical zoom lens are shown below for 9 online retailers. Estimate the true mean price for this particular model with 95% confidence. Assume the variable is normally distributed.192 189 249 245 214 201 221 180 200 Ans: https://tutorteddy.com/site/free_stat... ---------------- Q: 43 employees in an office wear eye glasses. 28 have single vision and 15 wear bifocals. If two employees are selected at random what is the probability that both of them wear bifocals Ans: https://tutorteddy.com/site/free_stat... ---------------- Q: Jordan is the manager of a used bookstore. He wants to estimate the average amount a customer spends per visit. A random sample of 90 customers' receipts gave a mean of x= $6.90 with standard deviation σ = $2.55. Find a 90% confidence interval for the average amount spent by all customers. Round each number in the interval to the nearest hundredth Ans: https://tutorteddy.com/site/free_stat... ------------------