An ice-cream manufacturer wishes to determine whether there is a relationship between the gender of a teenager and their preferred flavor of ice cream. A survey of 200 teenagers produced the following results: Gender strawberry vanilla chocolate total Female 25 18 59 102 Male 32 29 37 98 Total 57 47 96 200 perform an appropriate test at a 5% level of significance to determine whether there is a relationship between the gender of teenagers and ice-cream flavor preferences.
An ice-cream manufacturer wishes to determine whether there is a relationship between the gender of a teenager and their preferred flavor of ice cream. A survey of 200 teenagers produced the following results:
| Gender | strawberry | vanilla | chocolate | total |
| Female | 25 | 18 | 59 | 102 |
| Male | 32 | 29 | 37 | 98 |
| Total | 57 | 47 | 96 | 200 |
perform an appropriate test at a 5% level of significance to determine whether there is a relationship between the gender of teenagers and ice-cream flavor preferences.
2.) the financial manager of a national warehouse chain has found from previous experience that 45% of clients pay by credit card, 35% pay on account, while the reminder pay using cash. He wishes to know if this is still the case. A random sample of 1000 sales receipts from the last month produced the following results:
| Creditcard | Account | Cash | Total | |
| No. Of receipts | 500 | 315 | 185 | 1000 |
using a 1% significance level, test whether the payment method pattern has changed.
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