Olympic 2024 Archery Trials: An analyst wants to estimate the proportion of archers who do not score above 85 in a qualifying round. Out of a sample of 32 archers, 23 do not score above 85. What can we say about the estimate of the true proportion of archers who do not score above 85?

What Excel function is used to find the value corresponding to a given probability in a normal distribution?

In the context of hypothesis testing, what does “mutually exclusive and collectively exhaustive” mean for H0 and HA?

Olympic 2024 Swimming Trials: A coach wants to estimate the proportion of swimmers who do not qualify for the finals in a regional meet. Out of a sample of 35 swimmers, 26 do not qualify. What can we say about the estimate of the true proportion of swimmers who do not qualify for the finals?

Stratified sampling is beneficial when the population consists of easily identifiable groups with different characteristics.

According to the Central Limit Theorem, what is the standard deviation of the sampling distribution of the sample mean?

The Central Limit Theorem applies only when the population distribution is normal.

What is the key to effective cluster sampling?

For Exponential Smoothing, if the initial forecast for month 1 is 270, and the smoothing constant (α) is 0.2, and the actual demands for the first two months are 270 and 241 respectively, what is the forecast for month 3?

A Bar chart is a good representation when both variables are numerical.