Mathematics, 24.12.2019 18:31 heebi4jeebi
At western university the historical mean of scholarship examination scores for freshman applications is 900. a historical population standard deviation s=180 is assumed known each year, the assistant dean uses a sample of applications to determine whether the mean examination score for the new freshman applications has changed.
- state the hypotheses
- what is the 95% confidence interval estimate of the population mean examination score if a sample of 200 applications provided a sample mean of xbar=935 ?
- use the confidence interval to conduct a hypthesis test. using a=.05, what is your conclusion ?
- what is the p-value ?
Answers: 2
Mathematics, 21.06.2019 23:00, Ellafrederick
Janie has $3. she earns $1.20 for each chore she does and can do fractions of chores. she wants to earn enough money to buy a cd for $13.50.
Answers: 2
At western university the historical mean of scholarship examination scores for freshman application...
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