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A child development researcher is testing the claim that the median number of words that a 3 year old knows is 200 or more. A sample of 15 children is taken and the follwing vocabulary sizes are computed: vocab size 195 213 182 289 301 223 171 275 199 292 250 127 236 303 283 What would the null hypothesis be (use 0 for the population median)
Ho: Select an answer H₁: Select an answer If the population median is 200, what distribution should be used to model the number of vocab sizes below 200? Select an answer ✓ How many observed vocabulary sizes are less than 200 (S)? Assuming the null hypothesis were true, would it be more unlikely for S to be higher than what was observed, or lower than what was observed? Select an answer What is the p-value? At a significance level of 0.05, what is your conclusion? Select an answer Submit Question