S
SanitY
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Could someone please help me with this question, going through it step by step. Thank you so much.
When a guitar is played regularly, a strong breaks on average once every 15 months, Broken strings occur at random times and independently of each other.
A guitar is fitted with a new type of string which, it is claimed, breaks less frequently. The number of broken strings of the new type was noted after a period of 5 years.
The mean number of broken strings of the new type in a 5 year period is denoted by λ. Find the rejection region for a test at the 10% significance level when the null hypothesis λ = 4 is tested against the alternative hypothesis λ < 4.
Thanks
I meant string*
When a guitar is played regularly, a strong breaks on average once every 15 months, Broken strings occur at random times and independently of each other.
A guitar is fitted with a new type of string which, it is claimed, breaks less frequently. The number of broken strings of the new type was noted after a period of 5 years.
The mean number of broken strings of the new type in a 5 year period is denoted by λ. Find the rejection region for a test at the 10% significance level when the null hypothesis λ = 4 is tested against the alternative hypothesis λ < 4.
Thanks
I meant string*