State the claim mathematically. Determine if the claim the null or the alternative hypothesis.

There is insufficient evidence at the 1% level of significance to support the medical director’s claim that the mean years of experience of HMO doctors is greater than 13.5.

State the standardized test statistic. 

Calculate the regression equation for the data: y^={“version”:”1.1″,”math”:”\hat{y}=”}

State the standardized test statistic. Justify by typing the input to your calculator.

Calculate the regression equation for the data: y^={“version”:”1.1″,”math”:”\hat{y}=”}

State the standardized test statistic. 

Construct a 90% confidence interval for the  population mean, μ{“version”:”1.1″,”math”:”\mu “}

There is insufficient evidence at the 10% level of significance to reject the district’s claim that the mean hourly sales are at least $750.

The correct decision for this test is to