An employment information service claims the mean annual salary for home care physical therapists is more...

An employment information service claims the mean annual salary for home care physical therapists is more than $80,000. The annual salaries (in dollars) for a random sample of 12 home care physical therapists had a mean of $81,666. The population standard deviation is $8971.15. At , is there enough evidence to support the claim that the mean salary is more than $80,000? Assume normally distributed.

Ho;

Ha;

alpha=

Test Statistic;

left, right or two-tailed

P-value;

conclusion;

Expert Solution

orchestra answered 2 years ago

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