# STATISTICS 320-Suppose that we want to estimate the mean

Suppose that we want to estimate the mean germination time of strawberry seeds. The germination times for the sample of strawberries we choose has a mean of 16 days and a standard deviation of 1.5 days. For each of the following sampling scenarios, determine which test statistic is appropriate to use when making inference statements about the population mean.(In the table, Z refers to a variable having a standard normal distribution, and t refers to a variable having a t distribution.)See attachment for what needs to be answered please.Sampling Scenario Z t could use either Z or t unclear (1) The sample has size 15, and it is from a population with a distribution about which we blow very little. o Â®Â®0 (2) The sample has size 13, and it is from a normally distributed population with unlmown standard deviation. 0 Â®Â®0 (3) The sample has size 110, and it is from a non-normally distributed population with a blown. standard deviation of 0.9. 0 0 0 0 (4) The sample has size 100, and it is from a non-normally distributed population. 0 0 0 0 (5) The sample has size 15. and it is from a normally distributed population with a ].mown standard deviation of 0.9. 0 0 0 0 =ii – -_ Luko !0â¢: HelpÂ« Prey. QuestionNext Question Â»

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