Mathematics, 09.09.2020 21:01 destinywashere101
The number of sweets in 25 bags has a mean of 30 and standard deviation of 3. In a special promotion, the manufacturer doubles the number of sweets in each bag. What do you think will happen to the mean and standard deviation. Calculate the new mean and standard deviation and state whether or not your guess was correct.
Answers: 2
Mathematics, 22.06.2019 00:30
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.
Answers: 1
Mathematics, 22.06.2019 01:00
The ideal weight of a nickel is 0.176 ounce. to check that there are 40 nickels in a roll, a bank weighs the roll and allows for an error of 0.015 ounce in total weight
Answers: 1
Mathematics, 22.06.2019 01:30
Five friends found a dollar on the ground and decided they each should get 1/5 of it. what amount of money will each friend get? $0.05 $0.20 $0.30 $0.80
Answers: 2
The number of sweets in 25 bags has a mean of 30 and standard deviation of 3. In a special promotion...
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