Please show me that state the hypotheses, the calculation/Computation steps, use which statistical test (such as one tailed test or two tailed test) and ( such as z-test or t-test), Conclusion (such as reject or fail to reject the null hypotheses)

Is ok if you don't know to how to use R commands or Rstudio. Just handwriting the answer or excel. But please provide all steps for the answers. Thanks.