C. Sum of the possible outcomes is 1.00. D. The outcomes are mutually exclusive. Ans: A 6) In which of the following distributions is the probability of a success usually small? A. Binomial B. Hypergeometric C. Poisson D. All distribution Ans: C 7) The difference between the sample mean and the population mean is called the A. Population mean.
A 10 hours B 8.6 hours C 9.6 hours D 9 hours 8 Increase $38 by 15%. A $57.00 B $43.70 C $53.10 D $53.70 8 Δ − 9 What is the correct value of Δ if ----- = −− ? 10 35 A 16 B 24 C 28 D 32 16 A box of 1500 elastic bands costs $28.50. What is the price per elastic band, to the nearest cent? A 1 cent B 2 cents C 19 cents D $1.90 7 2 17 Find % --& .
The population of lengths of aluminum-coated steel sheets is normally distributed with a mean of 30.05 inches and a standard deviation of 0.2 inches. What is the probability that a sheet selected at random from the population is between 29.75 and 30.5 inches long? (Points : 5) .4332 .4878 .0546 .9210 | 3. During the past six months, 73.2% of US households purchased sugar. Assume that these expenditures are approximately normally distributed with a mean of $8.22 and a standard deviation of $1.10.
True B. False For dependent samples, we assume the distribution of the paired differences between the populations has a mean greater than 0. A. True B. False For independent populations, the standard deviation of the distribution of the differences has a variance equal to the sum of the two individual variances.
Suppose we are interested in comparing means from two independent samples. The mean of the first sample is 9 and the mean of the second sample is 17. Let’s assume that the two group means have the same standard errors, equal to 2.5. The 95 percent confidence interval for the first group mean can be calculated as: 9 ± 1.96 × 2.5 where 1.96 is the critical t-value. The confidence interval for the first group mean is thus (4.1, 13.9).
The first class in a relative frequency table is 50–59 and the corresponding relative frequency is 0.2. What does the 0.2 value indicate? Answer: 0.2 is equal to 1/5 or 20%, 0.2 indicates 20% of the data values are in this particular interval. 3. When you add the values 3, 5, 8, 12, and 20 and then divide by the number of values, the result is 9.6.
* Dim cost1 As Integer = 0 7. Write a pseudocode statement that assigns the value27 to the variable count. * Dim count As Integer = 2 8. Write a pseudocode statement that assigns the sum of 10 and 14 to the variable total. * Total = 10 + 14 9.
State the place value of the underlined digit in 6 953 742. A Hundreds C Ten thousands B Thousands D Hundred thousands ( 3. Round off 5 987 341 to the nearest hundred thousand. A 5.8 million C 6.0 million ( B 5.9 million D 6.1 million 4. Which of the following numbers, when rounded off to the nearest thousand, becomes 7 541 000?
Significant Figures/Scientific Notation Question 1 How many significant figures are in the following values? a. 4.02 x 10-9 b. 0.008320 c. 6 x 105 d. 100.0 Question 2 How many significant figures are in the following values? a.
If the value of x is postnatal age of 30 hours, what is the value for Yˆ or SBP for neonates 1,001–1,500 grams? Show your calculations. 7. Compare the SBP readings you found in Questions 5 and 6. Explain the difference in these two readings.