Imagine that Car Middle East, a car magazine is comparing that repair costs incurred during the first four years on two types of family car the Camry and Altima. Random samples of 60 Camry cars and 66 Altima cars are selected. The mean repair cost is $1,679 for Camry and $1,485 for Altima and with the sample standard deviation are $267 and $326 respectively. Assume that the distribution is normally distributed with equal variances.
a. find its pooled standard deviation.
b. based on the sample information, determine the 90% confidence interval estimate for the difference between two population mean.
Over the years, Gotmyhomework has managed to secure the most qualified, reliable and experienced team of writers. The company has also ensured continued training and development of the team members to ensure that it keep up with the rising Academic Trends.
We pay strict attention on deadlines. For this reason, we ensure that all papers are submitted earlier, even before the deadline indicated by the customer. For this reason, the client can go through the work and review everything.
You essay will be 275 words per page. Tell your writer how many words you need, or the pages.
Unless otherwise stated, we use 12pt Arial/Times New Roman as the font for your paper.
Your essay will have double spaced text. View our sample essays.
APA, MLA, Chicago/Turabian, Harvard, our writers are experts at formatting.