Sam and Liam raced each other up and then down the hill. Sam's average speed up the hill was 1 mph, and his average speed down t
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Complete Question
The complete question is shown on the first uploaded image
Answer:
The null hypothesis is rejected this means that
The 95% confidence interval is
Step-by-step explanation:
From the question we are told that
The standard deviation is s= 0.0001
The sample size is n = 25
The sample mean is
The population mean is
The null hypothesis is
The alternative hypothesis is
The test statistics is mathematically represented as
So the p-value from the z-table is mathematically represented as
seeing that
we reject the null hypothesis
The critical value of
obtained from the normal distribution table is
The margin of error is mathematically represented as
=>
=>
The 95% confidence level is mathematically represented as
=>
=>