If I could get help with A, B and C. Also, could you write steps on how to get t

Question

If I could get help with A, B and C. Also, could you write steps on how to get the std t-test and p-value on a ti-84?

Random samples of resting heart rates are taken from two groups. Population 1 exercises regularly, and Population 2 does not. The data from these two samples is given below: Population 1: 68, 63, 73, 71, 69, 73, 68 Population 2: 78, 70, 73, 79, 70, 71, 78, 78 Is there evidence, at an ? = 0.005 level of significance, to conclude that there those who exercise regularly have lower resting heart rates? (Use the conservative method for computing degrees of freedom). Carry out an appropriate hypothesis test, filling in the information requested A. The value of the standardized test statistic: 1.640440444 B. The p-value is.9492416048 C. Your decision for the hypothesis test: A. Reject H B. Reject Ho C. Do Not Reject H1 D. Do Not Reject Ho

Explanation / Answer

Sol:

the value of standardised test statistic:

t=

-2.758642233

p=

0.008133481

alpha=0.005

p>alpha

Do not reject null hypothesis.

t-Test: Two-Sample Assuming Unequal Variances population 1 population 2 Mean 69.28571429 74.625 Variance 12.23809524 15.98214 Observations 7 8 Hypothesized Mean Difference 0 df 13 t Stat -2.758642233 P(T<=t) one-tail 0.008133481 t Critical one-tail 3.012275839 P(T<=t) two-tail 0.016266962 t Critical two-tail 3.372467941

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