question 2:

2. Several recent studies have tried to determine the ways in which people try to cool their mouths after eating spicy food. A recent poll showed the following information: Percentage of Responses 43% 18% 15% Soda 10% Nothing 8% After completing a study on a random sample of 190 adults who were given spicy food and were asked to select from the list an item to cool their mouth, the following results were obtained: Number of people 76 28 32 Soda 21 Nothing 14 Researchers want to know if the sample indicates that people use items in different proportions that the poll suggested. Use a chi-square critical value of 11.07. (11 points) a) Roughly sketch or use Excel to make a bar chart based on the polling data percentages given (not the survey results from 190 adults). (2 pts) b) What would the null and alternate hypothesis be for this chisquare goodness of fit test? (1 pt) f) 0') Calculate a table of expected counts based on the polling data about spicy food. (2 pts) What are the assumptions for a chi-square test of goodness of fit? Do we meet these conditions? How did you know? (1 9;) Calculate the chi-square statistic. Show your work for at least one cell calculation and the final statistic. (3 pts) Write a complete conclusion citing your statistics. (2 pts) A researcher wanted to determine if babies were born at different rates in different months in the Bay areas. Tracking a random sample of birth records for one Bay area for 8 months resulted in the following data. Use a chi-square critical value of 14.07. (8 points) mmm--mm _\"---I What are the null and alternate hypothesis for this test? What is the expected number of babies for each month? Report as a decimal, if applicable. Calculate the chi-square statistic. Show your work for at least one cell calculation and the final statistic. Write a complete conclusion citing your statistics