Define the null hypothesis. if the null hypothesis is, Ask an Expert

Statistics

1. Define the null hypothesis. If the null hypothesis is rejected then?

2. The level of significance is the?

3. Type II error is committed when?

4. The level of significance in hypothesis testing is the probability of?

Please explain and show all calculations.

5. If n=16, mean = 75.76, s = 8.2466 H o: mean >80 H a: mean <80, the standardized test statistic equals?

6. Read the Z statistic from the normal distribution table:

a. A one-tailed test(upper tail) at 87.7% confidence; Z=

b. A two-tailed test at 98.4% confidence; Z=

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Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M9390316

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