A weight loss company maintains that its program helps people lose an average of at least 25 pounds in 6 months. A sampl

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A weight loss company maintains that its program helps people
lose an average of at least 25 pounds in 6 months. A sample of 55
clients reveals that company’s clients lost an average of 29 pounds
with a standard deviation of 15 pounds.
•
At a 10% level of significance, does the company’s claim appear
correct? (i.e. what is null and alternative hypotheses and would
you reject or fail to reject the null hypothesis?) (hint: compare
test statistic to critical value)
•
What is the p-value?
The correct answer is 6.04. Please give me step-by-step
instruction. I havent taken statistic in years.