Question 9 Not yet answered Amanufacturer of car batteries claims that his product will last at least 4 years on average

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Question 9 Not yet answered Amanufacturer of car batteries claims that his product will last at least 4 years on average

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Question 9 Not Yet Answered Amanufacturer Of Car Batteries Claims That His Product Will Last At Least 4 Years On Average 1
Question 9 Not Yet Answered Amanufacturer Of Car Batteries Claims That His Product Will Last At Least 4 Years On Average 1 (33.61 KiB) Viewed 106 times
Question 9 Not yet answered Amanufacturer of car batteries claims that his product will last at least 4 years on average. A sample of 41 is taken and the mean and standard deviation are found. The test statistic is calculated to be -1.656. Using a 5% level, Marked out of 8.00 p Flag question a) Specify the null and alternative hypothesis? b) What is the appropriate test statistic? What is the final decision (accept or reject the null hypothesis)?
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