Asurvey on company boards showed incremental improvements in most measures of female board representation in the past year. the study reported that 82 of 103 (79.61%) of welfare companies sampled, 72 of 95 (75.79%) of fashion companies sampled, 69 of 110 (62.73%) of retail companies sampled, 43 of 87 (49.43%) of news companies sampled, and 39 of 89 (43.82%) of energy companies sampled have at least one female director on their boards. complete parts (a) through (c) a. at the 0.05 level of significance, is there evidence of a significant difference among the company types with respect to the proportion who have at least one female director on their boards? state the null and alternative hypotheses. choose the correct answer below. h1: at least one of the x is not equal to zero (where j- 1, 2, 3, 4, 5) h1 : not all 찌 are equal (where j= 1, 2, 3, 4, 5) the test statistic is tat-d (round to two decimal places as needed.)