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For each of the situations in parts a) through d), define the parameter (proportion or mean) and write the null and alte
Posted: Wed May 11, 2022 5:18 pm
by answerhappygod
- For Each Of The Situations In Parts A Through D Define The Parameter Proportion Or Mean And Write The Null And Alte 1 (84.49 KiB) Viewed 41 times
For each of the situations in parts a) through d), define the parameter (proportion or mean) and write the null and alternative hypotheses in terms of parameter values. Example: We want to know if the proportion of up days in the stock market is 50%. Answer Letp=the proportion of up days. Ho p=0.5 vs. Ha p#05 a) A casino wants to know if their slot machine really delivers the 5 in 100 win rate that it claims Let of wins in the casino's slot machine y the y 0.05 vs. Ha Ho V 0.05 b) Last year, customers spent an average of $47 35 per visit to the company's website. Based on a random sample of purchases this year, the company wants to know if the mean this year has changed Let v = the of customer spending per visit to the website V V 47.35 vs. HA 747.35 Ho c) A pharmaceutical company wonders if their new drug has a cure rate lower than the 30% reported by the placebo Let the of patients cured by the new drug 10.30 H. v0.30 vs. HA d) A bank wants to know if the percentage of customers using their website has increased from the 20% that used it before their system crashed last week Let V = the V of customers using the bank website V 0.20 vs. H. 10.20 Ho