Mindy conducted a survey of the phones in four stores and wrote the following observations:
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Mathematics, 05.10.2019 12:50 lilpetals
Mindy conducted a survey of the phones in four stores and wrote the following observations:
5 of the 8 phones in store 1 were smartphones
13 of the 22 phones in store 2 were smartphones
22 of the 30 phones in store 3 were smartphones
12 of the 25 phones in store 4 were smartphones
based on the survey, which store had the greatest percentage of smart phones?
store 1
store 2
store 3
store 4
Answers: 2
Mathematics, 22.06.2019 01:00
The dance committee of pine bluff middle school earns $72 from a bake sale and will earn $4 for each ticket they sell to the spring fling dance. the dance will cost $400 write an inequality to determine the number, t of tickets the committee could sell to have money left over after they pay for this year's dance. what is the solution set of the inequality?
Answers: 2
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The null and alternate hypotheses are: h0: μ1 ≤ μ2 h1: μ1 > μ2 a random sample of 22 items from the first population showed a mean of 113 and a standard deviation of 12. a sample of 16 items for the second population showed a mean of 99 and a standard deviation of 6. use the 0.01 significant level. find the degrees of freedom for unequal variance test. (round down your answer to the nearest whole number.) state the decision rule for 0.010 significance level. (round your answer to 3 decimal places.) compute the value of the test statistic. (round your answer to 3 decimal places.) what is your decision regarding the null hypothesis? use the 0.01 significance level.
Answers: 1
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