Would a teacher calculating your grade need to have exact or estimated values?
1 answer:
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Answer:
a
The null hypothesis is
The alternative hypothesis is
b
c
There is no sufficient evidence to conclude that the mean price in Providence for a bottle of red wine that scores 4.0 or higher on the Vivino Rating System is less than the population mean of $32.48
Step-by-step explanation:
From the question we are told that
The mean price of is
The sample size is n = 56
The sample mean is
The standard deviation is
The null hypothesis is
The alternative hypothesis is
Generally the test statistic is mathematically represented as
=>
=>
Generally the p-value is mathematically represented as
From the z-table
So
From the value we obtain we see that
Then we fail to reject the null hypothesis
Hence there is no sufficient evidence to conclude that the mean price in Providence for a bottle of red wine that scores 4.0 or higher on the Vivino Rating System is less than the population mean of $32.48