Kyle has created a video game called Falling Stars in which the player zaps stars from the sky A certain number of stars must be zapped before the player can move on to the next level Each zapped star is worth the same number of points on each level The table shows how many stars will need to be zapped and the points that can be earned at each level

Explain the ratio relationship between the number of stars zapped and the points earned be described. How many stars will need to be zapped on Level 10?

A) For every 5 stars zapped, 250 points are earned. The player will need to zap 65 stars to complete Level 10.
B)For every 5 stars zapped , 200 points are earned. The player will need to zap 65 stars to complete Level 10.
C) For every 20 stars zapped , 50 points are earned . The player will need to zap 70 stars to complete Level 10.
D) For every 10 stars zapped, 100 points are earned. The player will need to zap 55 stars to complete Level 10

(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?