Do all exercises in the same output, hand it in in Wordformat.
Parametric test:
1 Customers do not like to wait for a long time in line at supermarkets. The management of a supermarket wants to keep the mean waiting time for its customers to at most 5 minutes. The manager of the store took a sample of 20 customers over a period of one week. The following data give the time that these 20 customers spent in line at this store before being served.
7 4 9 12 3 5 2 8 9 10 14 10 8 15 11 6 4 9 6 13
Based on this sample information, would you conclude that the mean waiting time for all customers visiting this supermarket is greater than 5 minutes (hypothesis test about mean)? Use significance level 1% .
Non-parametric tests:
2 Use the Chi-Square-Goodness-of –fit test on the datafile Cars to investigate if some origin country (countries) of the cars is (are) over-represented. Test at 5 % significance level.
3 Using the 1% significance level, is there any difference between men and women concerning Level of personal spirituality and Level of life satisfaction in the datafile Divorce.
4 Make a correlation test for variables of ordinal type and a correlation test for variables of nominal type with your own data file. Choose significance level by yourself.