An article in a national publication claims that the mean outstanding credit card balance for college seniors was $515. a sample of 16 college seniors at a large university found a sample mean credit card balance $706 with a sample standard deviation of $325. if we assume that the distribution of outstanding credit card debt is approximately normal, conduct a hypothesis test to determine whether the mean debt of seniors at this university differs from $515. Use α= 0.05 significance level. Required:
What is the p-value?

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In a coastal town, the humidity, measured in grams of water per kilogram of air, increases by 43% for every 1 degree celsius increase in temperature. a scientist observes that the humidity on monday morning is 5.75 grams per kilogram. he wants to know how much the temperature must increase for the humidity to reach at least 49.17 grams per kilogram. let t represent the increase in temperature, in degrees celsius, from monday morning's observation. write an inequality to represent the situation, and use it to determine the desired temperature increase.