Engineers at Sorties Heap, Inc. are trying to assess the difference in average meltdown temperature for two competing brands of DB conical resonators, a component used in the manufacture of your company’s main product. They take a simple random sample of four Brand W and four Brand F units with the following results:

a. Compute the sample means and sample standard deviations (s₁ and s₂) here. 

b. Compute the pooled estimate of population standard deviation. 

c. Using the pooled estimate in b, construct and interpret the 95% confidence interval estimate of the population mean melt down temperature difference. Be sure to use the appropriate t-score for your interval. You can assume that the population meltdown temperatures are normally distributed, with equal standard deviations.

Transcribed Image Text:

Brand F Brand W Sample Sample Meltdown Member Temp(F) Member TempF Meltdown 156 144 148 152 145 141 146 138