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Some one help me out

In Toss-N-Turn at the County Fair, contestants flip a fair coin and then spin the pointer of a spinner with seven equal sections, numbered
1-7. Contestants win if the coin lands heads up and the pointer lands on an even number.
? Explain.
If Paulina wants to win a prize, should she play Toss-N-Turn or a different game that has a theoretical probability of winning of
1-5? explain.

According to a research study, parents with young children slept 6.4 hours each night last year, on average. a random sample of 18 parents with young children was surveyed and the mean amount of time per night each parent slept was 6.8. this data has a sample standard deviation of 0.9. (assume that the scores are normally distributed.) researchers conduct a one-mean hypothesis at the 5% significance level, to test if the mean amount of time parents with young children sleep per night is greater than the mean amount of time last year. the null and alternative hypotheses are h0: μ=6.4 and ha: μ> 6.4, which is a right-tailed test. the test statistic is determined to be t0=1.89 using the partial t-table below, determine the critical value(s). if there is only one critical value, leave the second answer box blank.