Evaluating the effectiveness of stem cell treatment (cont.)
Conduct the hypothesis test and compute the p-value for evaluating whether there is a difference between the mean heart pumping capacities of sheep's hearts in the control and treatment groups.
Since we're testing for a difference, the order in which we subtract matters. We can specify it using the order argument in the calculate() function. For example, to achieve group1 - group2 use order = c("group1", "group2").
This exercise is part of the course
Inference for Numerical Data in R
Hands-on interactive exercise
Have a go at this exercise by completing this sample code.
n_replicates <- 1000
# Generate 1000 differences in means via randomization
diff_mean_ht <- stem.cell %>%
# y ~ x
specify(___ ~ ___) %>%
# Null = no difference between means
hypothesize(null = "___") %>%
# Shuffle labels 1000 times
generate(reps = ___, type = "___") %>%
# Calculate test statistic
calculate(stat = "___", order = c("esc", "___")