Question

A scientist is interested in determining whether sunflower seedlings treated with an extract resulted in a higher average height of seedlings than the standard height of 15.7 cm. The scientist

treated a random sample of 33 seedlings with the extract and subsequently obtained the result of an average height of 13.7 cm with a standard deviation of 2.5 cm. Test the hypothesis at 5% level of significance. 1. Name the hypothesis test you will conduct 2. Is it a one tail test or a two tail test? 3. Write down the Null and Alternate Hypotheses 4. Calculate the test statistic 5. State the critical value 6. Do you accept or reject the null hypothesis?State your conclusion in words

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