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- researchers calculated for their study that the mean difference () = 5.65 and the SE of the Mean Difference () = 2.58, the t value is _____The temperature reading from a thermocouple placed in a constant-temperature medium is normally distributed with mean μ, the actual temperature of the medium, and standard deviation o. USE SALT What would the value of o have to be to ensure that 95% of all readings are within 0.2° of μ? (Round your answer to four decimal places.) 0 = You may need to use the appropriate table in the Appendix of Tables to answer this question. Need Help? Read ItThe number of cans of soft drinks sold in a machine each week is recorded below. Develop forecasts for the period indicated and error calculations. 155, 145, 155, 162, 180, 165, 172, 149, 170, 172 Exponential smoothing. Use an alpha level of .8 What is the forecast for week 10? What is the Mean Absolute Error (MAE)?
- A recent Nielsen analysis found that the typical U.S. smartphone user is spending an average of 220 minutes per day using apps. We speculate that the average time spent using apps for Generation X smartphone users (aged 41-56 years) is less than the national average. The hypotheses are Ho: H = 220 minutes versus Ha: µ < 220 minutes. Summary results from R are provided. Summary Statistics Std. Dev (s) Mean Sample Size (n) 205 minutes 63.25 minutes 31Determine whether the given value is a statistic or a parameter. A homeowner measured the voltage supplied to his home on 23 days of a given month, and the average (mean) value is 143.1 volts. Part 1 Choose the correct answer below. A. The given value is a statistic for the month because the data collected represent a population. B. The given value is a parameter for the month because the data collected represent a sample. C. The given value is a parameter for the month because the data collected represent a population. D. The given value is a statistic for the month because the data collected represent a sample.Please help me solve this? Thanks
- Please show manual answerC ī Biostatistics What formula would you use to find A point estimate for the mean change in heart rate (level I to baseline?? inUse a calculator or computer software to generate a normal quantile plot for the data in the accompanying table. Then determine whether the data come from a normally distributed population. Click the icon to view the data set. Generate a normal quantile plot for the data. Choose the correct graph below. OA. 3.00 2.00- 1.00- 0.00- -1.00- Q Q -2.00 -3.00 100 200 300 400 500 0 X Value OB. 3.00 2.00- 1.00- 0.00- -1.00- -2.00- -3.00- ... 0 100 200 300 400 500 X Value Q Q G O C. 3.00 2.00 P 1.00 0.00- -1.00- -2.00- 0 100 200 300 400 500 X Value -3.00+ Determine whether the data come from a normally distributed population. Choose the correct answer below. OA. The distribution is not normal. The points are not reasonably close to a straight line. OB. The distribution is normal. The points show a systematic pattern that is not a straight-line pattern. OC. The distribution is not normal. The points show a systematic pattern that is not a straight-line pattern. OD. The distribution is normal. The…