Mathematics, 21.03.2021 02:00 maleyaden
The ratio of Rita's sweets to Annas sweets was 2:5. Rita ate 2/3 of her sweets. Find the new ratio of Rita's sweets ro Annas sweetsâ
Answers: 1
Mathematics, 21.06.2019 23:00
According to a study conducted in 2015, 18% of shoppers said that they prefer to buy generic instead of name-brand products. suppose that in a recent sample of 1500 shoppers, 315 stated that they prefer to buy generic instead of name-brand products. at a 5% significance level, can you conclude that the proportion of all shoppers who currently prefer to buy generic instead of name-brand products is higher than .18? use both the p-value and the critical-value approaches.
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Mathematics, 22.06.2019 02:00
Two sides of a right triangle measure 2 units and 4 units. what is the area of the square that shares a side with the third side of the triangle?
Answers: 2
Mathematics, 22.06.2019 03:30
Atown recently dismissed 5 employees in order to meet their new budget reductions. the town had 5 employees over 50 years of age and 19 under 50. if the dismissed employees were selected at random, what is the probability that exactly 2 employees were over 50? express your answer as a fraction or a decimal number rounded to four decimal places.
Answers: 1
Mathematics, 22.06.2019 03:30
Atechnician compares repair costs for two types of microwave ovens (type i and type ii). he believes that the repair cost for type i ovens is greater than the repair cost for type ii ovens. a sample of 6767 type i ovens has a mean repair cost of $79.79$â˘79.79. the population standard deviation for the repair of type i ovens is known to be $19.18$â˘19.18. a sample of 5555 type ii ovens has a mean repair cost of $75.24$â˘75.24. the population standard deviation for the repair of type ii ovens is known to be $21.40$â˘21.40. conduct a hypothesis test of the technician's claim at the 0.050.05 level of significance. let Îź1Îź1 be the true mean repair cost for type i ovens and Îź2Îź2 be the true mean repair cost for type ii ovens. step 2 of 4 : compute the value of the test statistic. round your answer to two decimal places.
Answers: 2
The ratio of Rita's sweets to Annas sweets was 2:5. Rita ate 2/3 of her sweets. Find the new ratio o...
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