Arandom sample of size 15 is selected from a normal population. the population standard deviation is unknown. assume the null hypothesis indicates a two-tailed test and the researcher decided to use the 0.10 significance level. for what values of t will the null hypothesis not be rejected? a. to the left of -1.645 or to the right of 1.645b. to the left of -1.345 or to the right of 1.345c. to the left of -1.282 or to the right of 1.282d. between -1.761 and 1.761

Tyler went to the supermarket to buy food for a food pantry. he has $36, and can carry up to 20 pounds of food in his backpack. pasta costs $1 for a 1-pound package. pasta sauce costs $3 for a 1.5 pound jar. let x = the number of packages of pasta and y = the number of jars of pasta sauce. one package of pasta is the right amount to go with one jar of pasta sauce. what is the best numbers of packages of pasta and jars of pasta sauce to buy for the food pantry? how many packages of pasta? how many jars of pasta sauce? explain your reasoning.