Will give the reward.
1. a game involves spinning this spinner. what is the probability of it landing on y?
1/8, 1/2, 5/8, 2/8.
2. this table shows the drink preferences of 50 shoppers at the mall. what is the probability that one shopper, selected at random from the 50 surveyed, preferred drink a or drink b.
8/25, 3/10, 11/25, 7/25.
3. an icecream shop offers 5 different types of icecream and 9 different toppings. how many choices are possible for a single serve of icecream with one topping.
14 choices, 45 choices, 52 choices, or 63 choices.
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(20 points) a bank has been receiving complaints from real estate agents that their customers have been waiting too long for mortgage confirmations. the bank prides itself on its mortgage application process and decides to investigate the claims. the bank manager takes a random sample of 20 customers whose mortgage applications have been processed in the last 6 months and finds the following wait times (in days): 5, 7, 22, 4, 12, 9, 9, 14, 3, 6, 5, 15, 10, 17, 12, 10, 9, 4, 10, 13 assume that the random variable x measures the number of days a customer waits for mortgage processing at this bank, and assume that x is normally distributed. 2a. find the sample mean of this data (x ě…). 2b. find the sample variance of x. find the variance of x ě…. for (c), (d), and (e), use the appropriate t-distribution 2c. find the 90% confidence interval for the population mean (îľ). 2d. test the hypothesis that îľ is equal to 7 at the 95% confidence level. (should you do a one-tailed or two-tailed test here? ) 2e. what is the approximate p-value of this hypothesis?