(1 point) Justin is interested in buying a digital phone. He visited 19 stores at random and recorded the price of the particular phone he wants. The sample of prices had a mean of $165.35 and a standard deviation of $23.45. Calculate a 95% confidence interval for the mean price of this model of digital phone: (Enter the smaller value in the left answer box.) Note: Round your answer to 2 decimal places. to $(1 point) A random sample of 100 observations from a population with standard deviation 7.3 yielded a sample mean of 91.4. Given that the null hypothesis is M = 90 and the alternative hypothesis is u > 90 using a = .05, find the following: (a) Test statistic: 1.9178 (b) P-value: The conclusion for this test is: O A. Reject the null hypothesis O B. There is insufficient evidence to reject the null hypothesis OC. None of the aboveHW 8 Practice for the Final Exam: Problem 14 Previous Problem Problem List Next Problem (1 point) Joe is new to cooking. The probability that Joe burns dinner is 55%. What is the probability that in the next 6 dinners Joe prepares, less than 3 of them will burn? Express your answer as a decimal rounded to 3 decimal places after the decimal point