H:[u v Determine if this test is left-tailed, right-tailed, or two-tailed. O right-tailed left-tailed O two-tailed Should the standard normal (z) distribution or Student's (t) distribution be used for this test? The Student's t distribution should be used O The standard normal (z) distribution should be used Determine the critical value(s) for this hypothesis test. Round the solution(s) to two decimal places. If more than one critical value exists, enter the solutions using a comma-separated list. Determine the test statistic. Round the solution to two decimal places. Determine the appropriate conclusion for this hypothesis test. The sample data do not provide sufficient evidence to reject the null hypothesis that the proportion of all dentists that recommend this brand of toothpaste is 0.9 and thus we conclude that the proportion of dentists that recommend this brand of toothpaste is likely equal to 0.9. O The sample data provide sufficient evidence to reject the alternative hypothesis that the proportion of dentists who recommend this brand of toothpaste is significantly different than 0.9 and thus we conclude that the proportion of all dentists that recommend this brand of toothpaste is likely equal to 0.9. O The sample data provide sufficient evidence to reject the null hypothesis that the proportion of all dentists that recommend this brand of toothpaste is 0.9 and thus we conclude that the proportion of dentists that recommend this brand of toothpaste is not equal to 0.9. O The sample data do not provide sufficient evidence to reject the alternative hypothesis that the proportion of dentists who recommend this brand of toothpaste is significantly different than 0.9 and thus we conclude that the proportion of all dentists that recommend this brand of toothpaste is likely different than 0.9.