Mathematics, 12.12.2019 23:31 nev322
Last year, the proportion of tax filers that received a refund was 25%. an accountant believes this upcoming tax year will have a smaller proportion of tax refunds than the proportion from last year. interested in studying this further, the accountant samples a few of their clients and determines the proportion that receive a refund for this upcoming tax year is 19%. as the accountant sets up a hypothesis test to determine if their belief about this upcoming tax year is correct, what is the accountant's claim?
select the correct answer below: a. people should not expect a tax refund this upcoming year. b. the proportion of tax filers that receive a refund is less than 25%.c. the proportion of tax filers that receive a refund is less than 19%.d. the proportion of tax filers that receive a refund is greater than 25%.
Answers: 2
Mathematics, 21.06.2019 19:30
Now max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about maxβs data must be true? a) the median of maxβs data is 250 b) more than half of the data points max recorded were 177 centimeters. c) a data point chosen at random is as likely to be above the mean as it is to be below the mean. d) every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.
Answers: 1
Mathematics, 21.06.2019 23:30
The product of sin 30 degrees and sin 60 degrees is same as the product of
Answers: 1
Last year, the proportion of tax filers that received a refund was 25%. an accountant believes this...
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