Mathematics, 24.11.2021 01:40 HalpMehPlz
According to data collected by RunRepeat, the average finishing time for all marathons completed in the U. S. in 2019 was 4.84 hours. Many runners in the NYC marathon used a qualifying time to secure an entry while others got in on lottery or with charitable foundations. As researchers, we believe that, on average, the finishing time for a runner in the NYC marathon is faster than 4.84 hours.
Complete the following steps to test this theory.
1. Give the correct null and alternative hypothesis for this test using correct notation.
2. Give the test statistic (rounded to two decimal places).
3. Give the p-value (rounded to four decimal places).
4. Give a general decision (reject H0 or do not reject H0). Let =0.05. 5. Give a conclusion in context
Answers: 1
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Whoever gets this right gets the ! the half life of a soul smelling substance is 4 years. if you have 8 oz of this strange substance, how much of it will you have after 20 years? show work.
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Abby is collecting rainfall data. she finds that one value of the data set is a high-value outlier. which statement must be true? abby will use a different formula for calculating the standard deviation. the outlier will increase the standard deviation of the data set. the spread of the graph of the data will not change. abby will not use the mean when calculating the standard deviation.
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According to data collected by RunRepeat, the average finishing time for all marathons completed in...
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