A group of fitness club members lose a combined total of 28 kilograms in 1 week. There are approximately 2.2 pounds in 1kilogram. Assuming the weight loss happened at a constant rate, about how many pounds did the group lose each day? Question solved general 10 months ago 7069
A rectangle has a length of 34 inches less than 5 times it’s width. If the area of the rectangle is 867 square inches, find the length of the rectangle. Question solved general 10 months ago 4488
A botanist wishes to estimate the typical number of seeds for a certain fruit. She samples 48 specimens and counts the number of seeds in each. Use her sample results (mean = 36.9, standard deviation = 16.5) to find the 98% confidence interval for the number of seeds for the species. Enter your answer as an open-interval (i.e., parentheses) accurate to one decimal place (because the sample statistics are reported accurate to one decimal place). Question solved general 10 months ago 6018
I’ll put you as brainliest Architects often create scale models before the actual building is constructed. If a scale model has a length of 24 inches and a width of 36 inches, which dimensions are geometrically similar to the model building ?Building A: 223 feet by 360 feet Building C: 288 feet by 432 feet Building D: 364 feet by 576 feet Building B: 120 feet by 190 feet Question solved general 10 months ago 6160
he brain volumes (cm cubedcm3) of 20 brains have a mean of 1103.81103.8 cm cubedcm3 and a standard deviation of 121.9121.9 cm cubedcm3. Use the given standard deviation and the range rule of thumb to identify the limits separating values that are significantly low or significantly high. For such data, would a brain volume of 1367.61367.6 cm cubedcm3 be significantly high? Question solved general 10 months ago 7122
Assume the adults have IQ scores that are normally distributed with a mean of 105 in a standard deviation of 20 find the probability that a randomly selected adult has an IQ less than 145 Question solved general 10 months ago 6849
When Dustin goes to work, he drives at an average speed of 55miles per hour. It takes about 2 hour and 15 minutes for Dustin toarrive at work. His car travels about 25 miles per gallon of gas. Ifgas costs $2.75 per gallon, how much money does Justin spend totravel each mile to work? Question solved general 10 months ago 3091
According to the Census Bureau, 3.36 people reside in the typical American household. A sample of 25 households in Arizona retirement communities showed the mean number of residents per household was 2.71 residents. The standard deviation of this sample was 1.10 residents. At the .10 significance level, is it reasonable to conclude the mean number of residents in the retirement community household is less than 3.36 persons? State the null hypothesis and the alternate hypothesis Question solved general 10 months ago 9678
Question 1. [7 marks total] Parental leave is often compensated to some degree, but the amount of compensation varies greatly. You read a research article that stated, "across people of all incomes, 47% of leave-takers received full pay during their leave, 16% received partial pay, and 37% received no pay." After reading this, you wonder what the distribution of parental leave payment pay is for low income households. Suppose you conduct a survey of leave-takers within households earning less than $30,000 per year. You surveyed 225 people (selected in a random sample) and found that 51 received full pay, 33 received partial pay, and 141 received no pay..You would like to investigate whether the distribution of pay for households earning < $30,000 is different from that of all income levels. Does this correspond to a chi-square test of independence or a chi-square test for goodness of fit? Question solved general 10 months ago 1597
From 27 pieces of luggage, an airline luggage handler damages a random sample of four. The probability that exactly one of the damaged pieces of luggage is insured is twice the probability that none of the damaged pieces are insured. Calculate the probability that exactly two of the four damaged pieces are insured. Question solved general 10 months ago 9657
A group of climbers begin climbing at an elevation of 5000 feet and ascend at a steady rate of 1500 vertical feet per hour. This situation can be modeled by a linear function. Identify the independent and dependent variables. Question solved general 10 months ago 7251
Test the hypothesis that the average content of containers of a particular lubricant is 10 liters if the contents of a random sample of 10 containers are 10.2, 9.7, 10.1, 10.3, 10.1, 9.8, 9.9, 10.4, 10.3, and 9.8 liters. Use a 0.01 level of significance and assume that the distribution of contents is normal. Question solved general 10 months ago 7085
The lengths of nails produced in a factory are normally distributed with a mean of 6.13 centimeters and a standard deviation of 0.06 centimeters.Find the two lengths that separate the top 7% and the bottom 7%.These lengths could serve as limits used to identify which nails should be rejected.Round your answer to the nearest hundredth, if necessary. Question solved general 10 months ago 7831
Please help!Options for ♣:definition of adjacent angles definition of angle bisector definition of congruencevertical angles are congruentOptions for ♦:AASASASASSSS Question solved general 10 months ago 2118
Elliot is standing at the top of a store escalator that leads to the ground floor below. The angle of depression from the top of the escalator to the floor is 42.51 degree, and the escalator is 16 feet long. How far the top of the escalator from the ground floor? Round your answer to the nearest foot. A. 41 feetB. 17 feet C. 12 feet D. 11 feet Question solved general 10 months ago 3223
A physical therapist wants to determine the difference in the proportion of men and women who participate in regular sustained physical activity. What sample size should be obtained if he wishes the estimate to be within two percentage points with 90% confidence, assuming that (a) he uses the estimates of 21.6% male and 19.2% female from a previous year? (b) he does not use any prior estimates? Question solved general 10 months ago 9344
complete the table to determine if wavelength varies inversely with frequency... Question solved general 10 months ago 5338
A random sample of 157 recent donations at a certain blood bank reveals that 86 were type A blood. Does this suggest that the actual percentage of type A donations differs from 40%, the percentage of the population having type A blood? Carry out a test of the appropriate hypotheses using a significance level of 0.01. State the appropriate null and alternative hypotheses. Question solved general 10 months ago 6177