Online ads targeting children were said to have decreased at least 56% between May and August 2000. A sample of 100 ads selected during this period showed a 45% decrease in online ads targeting children. State the null and alternative hypotheses and carry out the test at the 1% level of significance.
Here, which one shud be the null hypothesis , and which one should be ? I'm confused.
The claim being tested is always the "null hypothesis".
A sample of 100 ads selected during this period showed a 45% decrease in online ads targeting children. State the null and alternative hypotheses and carry out the test at the 1% level of significance.
Here, which one shud be the null hypothesis , and which one should be ? I'm confused.