Mathematics, 18.03.2021 02:20, nika0001

May anyone help me till I get to an 80 please? Ive been struggling for 3 days now.

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Mathematics, 21.06.2019 17:30, cocothunder635

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Mathematics, 21.06.2019 20:30, cogger9348

3.17 scores on stats final. below are final exam scores of 20 introductory statistics students. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 57, 66, 69, 71, 72, 73, 74, 77, 78, 78, 79, 79, 81, 81, 82, 83, 83, 88, 89, 94 (a) the mean score is 77.7 points. with a standard deviation of 8.44 points. use this information to determine if the scores approximately follow the 68-95-99.7% rule. (b) do these data appear to follow a normal distribution? explain your reasoning using the graphs provided below.

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Zahra runs a 500-meter race at a constant speed. which graph shows her distance from the finish line during the race?

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Mathematics, 22.06.2019 00:30, madelyngv97

Arandomized controlled trial is designed to evaluate the effect of metoprolol in patients with heart failure. while preparing for statistical analysis, the researcher reviews some common types of statistical errors. which of the following statements is true regarding a type i error in a clinical study? a. the study is not significantly powered to detect a true difference between study groups. bthe null hypothesis is true but is rejected in error. c. the null hypothesis is false but is accepted in error. d. type i error is also known as beta and is usually 0.1 or 0.2. e. type i error depends on the study's confidence interval.

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May anyone help me till I get to an 80 please? Ive been struggling for 3 days now.
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